Relevant bibliographies by topics / Fluidized Bed Processing / Journal articles

To see the other types of publications on this topic, follow the link: Fluidized Bed Processing.

Journal articles on the topic 'Fluidized Bed Processing'

Author: Grafiati

Published: 2 June 2025

Last updated: 19 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Fluidized Bed Processing.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

Mi, Tie, and Xin Ming Yu. "Study on Fluidization Characteristics of Chinese Herbal Medicine Waste in a Fluidized Bed Reactor." Applied Mechanics and Materials 138-139 (November 2011): 952–57. http://dx.doi.org/10.4028/www.scientific.net/amm.138-139.952.

Full text

Abstract:

Large amounts of Chinese herbal medicine wastes (CHMW) are produced in the process of processing and manufacturing traditional Chinese crude medicines. For CHMW, gasification in fluidized bed is a promising option. But, it is the difficult to fluidize CHMW particles alone in fluidized bed gasifier, especially for various size and shape of CHMW particles. It is very common to fluidize these kinds of biomass particles with sand, gives better defined fluidization behavior and a more reliable scale-up. However, not much is known about fluidization behavior of CHMW particles in fluidized bed. Therefore, a fluidized bed and its air distribution were designed and set up, the experimental study on fluidization characteristic of CHMW was done in the fluidize bed. Minimum fluidization velocity and the effect of bed height of CHMW/quartz sand mixtures on fluidization properties in air have been experimentally determined. The results showed that good fluidized could achieve with the additional of quartz sand. The results will be in favorite design and operation of CHMW gasification in fluidized bed.

APA, Harvard, Vancouver, ISO, and other styles

Wang, Shu Jiang, Da Yong Liu, Hong Gang Zhang, and Zhi Qiang Sun. "Treatment of Chemical Production Wastewater Containing Fluorine with Two Kinds of Fluidized Bed Reactor by Induced Crystallization." Advanced Materials Research 347-353 (October 2011): 1348–53. http://dx.doi.org/10.4028/www.scientific.net/amr.347-353.1348.

Full text

Abstract:

Keywords: Fluidized bed；Bubbling bed；Induced crystallization；Fluoride removal；Quartz sands Abstract: Through establishing two kinds of experimental device, regular bed and bubbling fluidized bed, it researched the treatment process of producing fluorine-containing wastewater in the method of chemical-induced crystallization. Taking a way of continuous flow, ordinary fluidized bed continuous flow approach measured the amount of fluoride crystals and the treatment effect. Using intermittent operation, bubbling fluidized bed measured the amount of fluoride crystal and the treatment effect. The results show that: ordinary fluidized bed treatment effect worse than the bubbling fluidized bed. Bubbling fluidized bed in a short time large amount of fluoride crystals, can be a lot of fluoride to fluoride content of waste water treatment 10mg / L or less. The technical processing speed, good effect, the reaction vessel is small, simple device, easy to control, with good prospects for practical application.

APA, Harvard, Vancouver, ISO, and other styles

Mares, Alina Monica, Gabriela Isopencu, and Cosmin Jinescu. "Aspects concerning the Drying of Granular Biomaterials with Intensive Techniques I.Dynamics of Modified Fluidized Bed In the Presence of Inert Particles." Revista de Chimie 59, no. 1 (2008): 79–87. http://dx.doi.org/10.37358/rc.08.1.1712.

Full text

Abstract:

Present paper has as objective the experimental study regarding the study on the dynamic parameters of modified fluidized bed. For the granular biomaterial processing by drying there are necessary intensifications techniques to avoid the thermal degradation. Present paper propose as intensification technique the modified fluidized bed (or flotation �fluidized bed) in which the granular biomaterial is mixed with inert material of small sizes. The purpose is to obtain the better dynamic conditions for the drying process.

APA, Harvard, Vancouver, ISO, and other styles

Asif, Mohammad, Ebrahim H. Al-Ghurabi, Abdelhamid Ajbar, and Nadavala Siva Kumar. "Hydrodynamics of Pulsed Fluidized Bed of Ultrafine Powder: Fully Collapsing Fluidized Bed." Processes 8, no. 7 (2020): 807. http://dx.doi.org/10.3390/pr8070807.

Full text

Abstract:

The processing of fine and ultrafine particles using a fluidized bed is challenging in view of their unpredictable hydrodynamic behavior due to interparticle forces. The use of assisted fluidization techniques in such cases can be effective in improving the bed hydrodynamics. This work investigates the dynamics of pulsed fluidized bed of ultrafine nanosilica subjected to square-wave flow pulsations. The pulse duration used in this study is sufficient to allow the complete collapse of the pulsed fluidized bed between two consecutive flow pulsations. The proposed pulsation strategy is carefully implemented using electronic mass flow controllers with the help of analog output signals from data acquisition system. Given that the different regions of the fluidized bed exhibit varying dynamics, which together contribute to overall bed dynamics, the bed transients in the upper, central, and lower regions of the fluidized bed are monitored using several sensitive pressure transducers located along the height of the bed. The effect of the flow pulsation on the hydrodynamics of the fluidized bed is rigorously characterized. A significant reduction in the minimum fluidization velocity was obtained and an increase in the bed homogeneity was observed due to flow pulsations. The frequency domain analysis of the signals clearly delineated the frequency of the various events occurring during the fluidization.

APA, Harvard, Vancouver, ISO, and other styles

Al-Ghurabi, Ebrahim H., Mohammad Asif, Nadavala Siva Kumar, and Sher Afghan Khan. "Fluidization Dynamics of Hydrophobic Nanosilica with Velocity Step Changes." Applied Sciences 10, no. 22 (2020): 8127. http://dx.doi.org/10.3390/app10228127.

Full text

Abstract:

Nanosilica is widely used in various applications, with its market expected to grow over USD 5 billion by 2025. The fluidized bed technology, owing to its intimate contact and efficient mixing of phases, is ideally suited for the large scale processing of powders. However, the bulk processing and dispersion of ultrafine nanosilica using the fluidized bed technology are critically affected by the interparticle forces, such that the hydrophilic nanosilica shows agglomerate bubbling fluidization (ABF), while the hydrophobic nanosilica undergoes agglomerate particulate fluidization (APF). This study carried out a detailed investigation into the fluidization hydrodynamic of the hydrophobic nanosilica by monitoring the region-wise dynamics of the fluidized bed subjected to a regular step change of fixed duration in the gas velocity. The gas flow was controlled using a mass controller operated with an analog output signal from a data acquisition system. The analog input data were acquired at the sampling rate of 100 Hz and analyzed in both time and temporal frequency domains. The effect of velocity transients on the bed dynamics was quickly mitigated and appeared as lower frequency events, especially in regions away from the distributor. Despite the apparent particulate nature of the fluidization, strong hysteresis was observed in both pressure drop and bed expansion. Moreover, the fully fluidized bed’s pressure drop was less than 75% of the theoretical value even though the bed appeared to free from non-homogeneities. Key fluidization parameters, e.g., minimum fluidization velocity (Umf) and the agglomerate size, were evaluated, which can be readily used in the large scale processing of nanosilica powders using fluidized bed technology.

APA, Harvard, Vancouver, ISO, and other styles

Egorov, Ivan, Nikolay Egorov, and Svetlana Egorova. "Diagnostic method for the selection of regimes of electromagnetic effect on the particulate ferromagnetic material." E3S Web of Conferences 458 (2023): 02028. http://dx.doi.org/10.1051/e3sconf/202345802028.

Full text

Abstract:

The recycling of obsolete permanent magnets, the processing and reusing of the obtained powder for a new magnets production has both economic and environmental benefits. The processing of recycled magnetic slur to the particle size distribution required for the magnets production has a problem specific for fine magnetic powders – particle aggregation limiting the milling efficiency. One way of solving this problem is milling the magnetic material with the formation of the magneto fluidized bed. In the present work we study the behavior of the recycled from old electromotor stators strontium hexaferrite powders with average particle sizes 56.8 µm and 7.5 µm in the magneto fluidized bed formed by mutually perpendicular constant and alternating gradient magnetic fields. The desired state of the fluidized bed for milling is the one with the maximal particle motion intensity that prevents particle aggregation. The intensification of particle motion could be done by the increase of the alternating magnetic field gradient, but this also increases energy consumption of the process. In the present paper we propose using the inductive method for estimating rheological state of the strontium hexaferrite powder in the magneto fluidized bed. Such estimation allows finding the optimal parameters of electromagnetic fields forming the fluidized bed for the efficient powder milling process.

APA, Harvard, Vancouver, ISO, and other styles

Llano, Sandra M., Ana María Gómez, and Yudy Duarte-Correa. "Effect of Drying Methods and Processing Conditions on the Quality of Curcuma longa Powder." Processes 10, no. 4 (2022): 702. http://dx.doi.org/10.3390/pr10040702.

Full text

Abstract:

Turmeric (Curcuma longa) is a spice that has been used for a long time in traditional medicine for its anti-inflammatory properties and recently used in the food industry for its dyeing and flavoring properties. This work studied the effect of different drying methods (convection oven drying, fluidized bed drying, and traditional solar drying) on the quality of Curcuma longa powder. The effect of UV radiation on turmeric powder using different packaging materials (glass, aluminum foil bag, and low-density polyethylene bag), was also studied. Subsequently, the fluidized bed drying method was used to evaluate the effect of drying temperature. The results show that convection and fluidized bed drying had no significant impact on turmeric quality. However, solar drying degraded curcuminoids by 36.5% and the ORAC value decreased by 14%. Regarding the packaging materials, the aluminum bag prevented the deterioration of 14% of the curcuminoids for the powder exposed to UV radiation. Finally, the effect of temperature on fluidized bed drying was evaluated at 50–80 °C, finding that there were no significant differences in the curcuminoid content and antioxidant capacity of turmeric powder. This implies that the range of temperature used in this study is appropriate for drying this material using fluidized bed drying, producing a turmeric powder with a high content of bioactive compounds, when compared to convection oven and solar drying. Therefore, the turmeric powder obtained in this way can be used as an active ingredient in the formulation of different kinds of foods and supplements.

APA, Harvard, Vancouver, ISO, and other styles

Kachan, O. Ya, and S. O. Ulanov. "DETERMINATION OF REGULARITIES OF TREATMENT OF DISKS IN A FLUIDIZED BED OF ABRASIVE." Kosmìčna nauka ì tehnologìâ 29, no. 6 (2023): 62–67. http://dx.doi.org/10.15407/knit2023.06.062.

Full text

Abstract:

n this work, the main regularities of processing disks in a fluidized bed of abrasive are established.The research was carried out on the АПС-600A installation when processing disks in a fluidized bed of abrasive. When processing discs, abrasive grains of groups 24A, 63C, and a mixture of abrasive grains 24A63+24A20 (50 % + 50 %) were used.The grain size of the abrasive grains varied in the range № 20 … № 80.The processed disks were made of such alloys as VT3-1, VT-9, EI698-VD, steel 45 HRC 38...45, and aluminum alloy D1T. The peripheral speed of the parts is Vp = 5...40 m/s. The maximum air consumption is 2000 Nm 3/h. The pressure of the air that liquefies the abrasive in the air-falling chamber is 5...6 kPa. The disk was immersed in a liquefied layer of abrasive to a depth of 0.2...1.2 of the radius of the disk. The regularities of the dependence of the removal of various materials from the machined surface of the disks on the speed of the part, the grain size, and the brand of the abrasive grain have been established. The dependence of abrasive grain wear on the speed of the part and on its position along the height of the abrasive layer was experimentally established, which allowed forassigning rational modes of processing discs in a fluidized layer of abrasive. The main regularities of the processing of disks in a fluidized bed of abrasive have been established, and the influence of the main parameters of the processing process on the productivity and stability of the abrasive grain has been determined. The main regularities of the process of processing discs in a fluidized bed of abrasive have been established experimentally, which allowsfor determining the main parameters, technological conditions, and modes of the finishing operation of parts manufacturing.

APA, Harvard, Vancouver, ISO, and other styles

Mikulionok, Іgor, Аnton Karvatskii, Olena Ivanenko, and Serhii Leleka. "Heat exchangers with fluidization of bulk material (Design review)." Proceedings of the NTUU “Igor Sikorsky KPI”. Series: Chemical engineering, ecology and resource saving, no. 3 (September 30, 2022): 23–38. http://dx.doi.org/10.20535/2617-9741.3.2022.265359.

Full text

Abstract:

A classification of heat exchangers with fluidization of bulk material for use in enterprises of the chemical, mining, construction, food, metallurgical and processing industries has been developed. A critical review of the most characteristic designs of heat exchangers with a fluidized bed, proposed by scientists, designers and inventors of the leading countries of the world, has been carried out. The designs of heat exchangers are analyzed depending on the method of fluidization, the role of bulk material in the heat exchange process, the nature of the heat exchange process over time, the nature of fluidization (in continuous heat exchangers), the mechanism of heat exchange of bulk material, the number of fluidized beds, the presence of additional heat exchange devices in the heat exchanger, the presence of movable structural elements, as well as the type of bulk material of the fluidized bed. An analysis of the designs of heat exchangers with a fluidized bed indicates their considerable diversity, however, the most simple to manufacture and operate reliable devices with fixed structural elements and one fluidized bed remain in demand by the industry. The most promising direction for improving fluidized bed heat exchangers is the development of specialized (for processing bulk material or fluid coolant) designs of apparatuses. In the future, it is planned to analyze the designs of other types of heat exchangers, as well as ways to improve their efficiency.

APA, Harvard, Vancouver, ISO, and other styles

Deevi, S. C. "Fluidized bed reactor processing of magnetic materials." Metal Powder Report 52, no. 7-8 (1997): 43. http://dx.doi.org/10.1016/s0026-0657(97)80227-5.

Full text

APA, Harvard, Vancouver, ISO, and other styles

Deevi, S. "Fluidized bed reactor processing of magnetic materials." Metal Powder Report 53, no. 7-8 (1997): 43. http://dx.doi.org/10.1016/s0026-0657(97)84733-9.

Full text

APA, Harvard, Vancouver, ISO, and other styles

Sathiyamoorthy, D. "Plasma spouted/fluidized bed for materials processing." Journal of Physics: Conference Series 208 (February 1, 2010): 012120. http://dx.doi.org/10.1088/1742-6596/208/1/012120.

Full text

APA, Harvard, Vancouver, ISO, and other styles

Żukowski, Witold, Krystian Leski, Gabriela Berkowicz-Płatek, and Jan Wrona. "Polyolefin Pyrolysis in Multilayer Fluidized Beds: An Innovative Approach to Obtain Valuable Alternative Fuels." Energies 17, no. 5 (2024): 1034. http://dx.doi.org/10.3390/en17051034.

Full text

Abstract:

This paper presents the application of two versions of the multilayer fluidized bed made out of two materials with significantly different densities. The first type of fluidized bed was composed of raw cenospheres and quartz sand. The second type of fluidized bed was composed of cenospheres coated with iron oxides and quartz sand. A variable vertical density profiles in the prepared fluidized beds were confirmed, making them suitable for processing polymeric materials, specifically, polyolefins with a density below 1 g/cm3. The polyolefin pyrolysis process was investigated in both versions of the fluidized bed at temperatures of 520, 540, 560, and 590 °C. The products of the pyrolysis were monitored using high-resolution infrared spectroscopy (with a resolution of 1 cm−1). While the process is organized in these fluidized beds, the absence of the accumulation of solid residues is notable. The results show that the pyrolytic gaseous mixture is composed of numerous compounds, namely, unsaturated and saturated aliphatic hydrocarbons and benzene. The possibility of producing a gas rich in ethylene, propylene, and 1-butene during the pyrolysis was demonstrated. Additionally, during the pyrolysis of both polymers, the production of benzene was shown with yields, ranging from 5%wt. in the fluidized bed made out of raw cenospheres to 11 %wt. in the fluidized bed made out of cenospheres modified by iron oxides. Due to the complex nature of the resulting pyrolytic gas, it is suggested that we process the created gaseous mixtures entirely in a steam conversion process, making them a potential source of hydrogen.

APA, Harvard, Vancouver, ISO, and other styles

Simeyko, K. V., A. I. Malinouski, S. O. Karsim, et al. "INVESTIGATION OF THE PROCESS OF OBTAINING PYROCARBON IN AN ELECTROTHERMAL FLUIDIZED BED." Energy Technologies & Resource Saving, no. 3 (September 20, 2021): 32–43. http://dx.doi.org/10.33070/etars.3.2021.03.

Full text

Abstract:

Carbon materials with a wide range of performance properties are used in various science, technology, and industry fields. For example, Pyrocarbon has the prospect of being used in nuclear power engineering, special metallurgy, aerospace technologies, heat exchange equipment, medicine, mechanical engineering, reactor building and other industries. The research described in the article aims to study the process of obtaining pyrocarbon in an electrothermal fluidized bed. The research is based on experimental methods of studying the process of obtaining pyrolytic carbon. Pyrocarbon is precipitated during pyrolysis (thermal destruction) of hydrocarbons in an electrothermal fluidized bed reactor. Natural gas was used as a fluidizing agent, and crushed fine electrode graphite of the GE model was used as a fluidized bed. When producing batches of pyrocarbon material, taking into account that the particle size will increase, these particles were crushed and subsequently used as a fluidized bed, thereby replacing graphite with pyrocarbon. As a result of the experimental studies carried out in the reactor with the electrothermal fluidized bed reactor, the batches of pyrocarbon material that were produced based on artificial graphite were produced. Studies using electron microscopy showed a change in the color and structure of the pyrocarbon coating depending on the processing cycle in the electrothermal fluidized bed reactor at temperatures of 900–1200 °C. Diffractometric analysis showed that pyrocarbon was identified in the treated material. Therefore, the adequacy of the method for calculating the heat balance has been confirmed. Bibl. 36, Fig. 7, Table 1.

APA, Harvard, Vancouver, ISO, and other styles

Gasafi, Edgar, and Robert Pardemann. "Processing of spodumene concentrates in fluidized-bed systems." Minerals Engineering 148 (March 2020): 106205. http://dx.doi.org/10.1016/j.mineng.2020.106205.

Full text

APA, Harvard, Vancouver, ISO, and other styles

Chen, Fan-Shiong, and Oo-Chuan Teh. "Assessment of Nitrocarburizing Processing in Fluidized Bed Furnace." Materials and Manufacturing Processes 11, no. 5 (1996): 803–19. http://dx.doi.org/10.1080/10426919608947528.

Full text

APA, Harvard, Vancouver, ISO, and other styles

Wolfinger, Thomas, Daniel Spreitzer, and Johannes Schenk. "Analysis of the Usability of Iron Ore Ultra-Fines for Hydrogen-Based Fluidized Bed Direct Reduction—A Review." Materials 15, no. 7 (2022): 2687. http://dx.doi.org/10.3390/ma15072687.

Full text

Abstract:

This review focuses on the usability of iron ore ultra-fines for hydrogen-based direct reduction. Such technology is driven by the need to lower CO2 emissions and energy consumption for the iron and steel industry. In addition, low operational and capital expenditures and a high oxide yield because of the direct use of ultra-fines can be highlighted. The classification of powders for a fluidized bed are reviewed. Fluid dynamics, such as minimum fluidization velocity, entrainment velocity and fluidized state diagrams are summarized and discussed regarding the processing of iron ore ultra-fines in a fluidized bed. The influence of the reduction process, especially the agglomeration phenomenon sticking, is evaluated. Thus, the sticking determining factors and the solutions to avoid sticking are reviewed and discussed. The essential theoretical considerations and process-relevant issues are provided for the usability of iron ore ultra-fines for hydrogen-based fluidized bed direct reduction.

APA, Harvard, Vancouver, ISO, and other styles

Sharipov, A. A., Y. V. Vankov, K. G. Sadikov, and E. R. Saifullin. "The influence of catalysts on the combustion of petroleum coke in the stationary fluidized bed mode." E3S Web of Conferences 124 (2019): 05047. http://dx.doi.org/10.1051/e3sconf/201912405047.

Full text

Abstract:

It is known that petroleum coke, a product of deep processing of oil, can be used as fuel in power boilers. The method of petroleum coke burning in a fluidized bed is the most optimal to complete its combustion. To improve the combustion characteristics of this fuel, we studied the influence of catalysts on the petroleum coke burning in the simulation mode of a stationary fluidized bed. The laboratory setup is described. The results of the experiments are given.

APA, Harvard, Vancouver, ISO, and other styles

Zylka, Anna, Jaroslaw Krzywanski, Tomasz Czakiert, et al. "Modeling of the Chemical Looping Combustion of Hard Coal and Biomass Using Ilmenite as the Oxygen Carrier." Energies 13, no. 20 (2020): 5394. http://dx.doi.org/10.3390/en13205394.

Full text

Abstract:

This paper presents a 1.5D model of a fluidized bed chemical looping combustion (CLC) built with the use of a comprehensive simulator of fluidized and moving bed equipment (CeSFaMB) simulator. The model is capable of calculating the effect of gas velocity in the fuel reactor on the hydrodynamics of the fluidized bed and the kinetics of the CLC process. Mass of solids in re actors, solid circulating rates, particle residence time, and the number of particle cycles in the air and fuel reactor are considered within the study. Moreover, the presented model calculates essential emissions such as CO2, SOX, NOX, and O2. The model was successfully validated on experimental tests that were carried out on the Fluidized-Bed Chemical-Looping-Combustion of Solid-Fuels unit located at the Institute of Advanced Energy Technologies, Czestochowa University of Technology, Poland. The model’s validation showed that the maximum relative errors between simulations and experiment results do not exceed 10%. The CeSFaMB model is an optimum compromise among simulation accuracy, computational resources, and processing time.

APA, Harvard, Vancouver, ISO, and other styles

Yegorov, I. N., and Nikolay Ya Egorov. "The Influence of Milling Regimes in Beater Mill on Particle Size Distribution and Structural Characteristics of Strontium Hexaferrite Powder." Solid State Phenomena 284 (October 2018): 158–62. http://dx.doi.org/10.4028/www.scientific.net/ssp.284.158.

Full text

Abstract:

The paper experimentally substantiates effectiveness of method of milling particulate ferromagnetic materials in magneto fluidized bed. Comparative results of particle size distributions and structural parameters of strontium hexaferrite SrFe12O19 powder obtained by milling coarse material in beater mill without electromagnetic effect and in same mill with formation of magneto fluidized bed from mill material are presented. The magneto fluidized bed is formed by constant and alternating gradient magnetic fields with induction lines that are mutually perpendicular and parallel to the plane of rotating beaters. It is shown that application of electromagnetic effect to milling coarse material in beater mill allowed to greatly intensify that process, significantly increase powder quality: increase particle size distribution uniformity and decrease average particle size from 1558.50 μm to 0.56 μm after 120 minutes of processing in the mill. X-ray diffraction analysis showed that milling in beater mill in magneto fluidized bed leads to reduction of coherent-scattering region size, increase of lattice microstrain and dislocation density, making powder more active during sintering process.

APA, Harvard, Vancouver, ISO, and other styles

Kaczyńska, Katarzyna, and Piotr Pełka. "Experimental Studies of Fluidized Bed Calcination of Granulated Clay Material." Materials 17, no. 10 (2024): 2185. http://dx.doi.org/10.3390/ma17102185.

Full text

Abstract:

The work presents a detailed analysis of the possibilities of the thermal processing of clay raw material granulates in a fluidized bed reactor powered by coal fuel. Potential customers of calcined granulates include the following: plants producing refractory materials for the steel industry, producers of refractory concrete, sanitaryware plants, tile plants, large-size tile plants, industry abrasives, chemicals, paints, paper, food and medical industries and others. The advantage of the presented fluid bed calcination technology is the possibility of the continuous operation of the reactor and the short time of the material in the bed, compared to the previously used methods of calcination in a shaft and rotary kiln, which lasts less than twenty minutes in the temperature range of 650–850 °C. During the experimental studies of calcination in the fluidized bed layer, the influence of the type of coal, its particle size and the mass share of coal in the feed mixture on the calcination process and the final product obtained was analysed. As a result of the conducted research, it was proven that solid fuels such as anthracite and steam coal type 31.2 (flaming) can be successfully used in the fluidized bed calcination process of clay materials. The key parameter determining the fluidized bed calcination process is the fuel particle distribution.

APA, Harvard, Vancouver, ISO, and other styles

KOZHUS, O. G., G. V. BARSUKOV, V. S. SHORKIN, Yu S. STEPANOV, and L. Yu FROLENKOVA. "IMPROVING THE EFFICIENCY OF THE INSTALLATION FOR APPLYING THE POLYMER SHELL TO THE ABRASIVE UNDER CRITICAL TECHNOLOGICAL CONDITIONS." Fundamental and Applied Problems of Engineering and Technology 3 (2021): 91–99. http://dx.doi.org/10.33979/2073-7408-2021-347-3-91-99.

Full text

Abstract:

The article deals with the issues of increasing the productivity of the process of applying the polymer shell to the abrasive. It is established that the performance of the abrasive encapsulation in the fluidized bed is achieved due to the selection of equipment, the type of polymer, the spray parameters and the properties of the abrasive material. The authors have developed a method for producing abrasive grain with a polymer coating using an installation that allows processing the initial particles in a fluidized bed.

APA, Harvard, Vancouver, ISO, and other styles

Frankin, R. J., W. A. A. Koevoets, W. M. A. van Gils, and A. van der Pas. "Application of the Biobed® Upflow Fluidized Bed Process for Anaerobic Waste Water Treatment." Water Science and Technology 25, no. 7 (1992): 373–82. http://dx.doi.org/10.2166/wst.1992.0169.

Full text

Abstract:

Over the past ten years Gist-brocades has been engaged in anaerobic waste water treatment. An in-depth research program concluded in the construction and operation of three full-scale plants for the treatment of yeast processing and pharmaceutical waste waters. Using the operational experience of the fluidized bed biomass-on-carrier systems and incorporating the strong assets of the Upflow Anaerobic Sludge Blanket (UASB) system features a new process was developed, the so-called Upflow Fluidized Bed (UFB) BIOBED® process, which operation appeared to be very successful over a &gt; 3 year period at full scale. The UFB BIOBED® system combines both characteristics of the UASB and FB processes. Biomass is present in a granular form but conditions with respect to upflow velocities for water and gas approach those of the original Fluidized Bed - biomass on carrier - (FB) system.

APA, Harvard, Vancouver, ISO, and other styles

Ťažký, Martin, Lenka Bodnárová, and Rudolf Hela. "Physico-Mechanical Properties of Lightweight Concrete with Fluidized Bed Combustion Fly Ash Based Light Weight Aggregate." Materials Science Forum 908 (October 2017): 106–10. http://dx.doi.org/10.4028/www.scientific.net/msf.908.106.

Full text

Abstract:

Increasingly we see today among the conventional high temperature fly ash also with the production of fly ash from fluidized bed combustion. These fluidized bed combustions fly ashes, however, have little used this area, mainly for their chemical composition and morphology. Current efforts are directed towards the development of new technological processes and building materials that would allow the use of this industrial waste and its qualities. One possible way of fluidized bed combustion fly ash’s utilizing in construction industries the production of cold balled lightweight aggregate. Production of this material is economically advantageous and enables processing of large volumes of raw materials. This paper describes possibilities of using this aggregate for production of lightweight construction concrete and consequent testing of durability and resistance to various types of aggressive environment. For these lightweight structural concretes, will be verified in their thermal-technical parameters.

APA, Harvard, Vancouver, ISO, and other styles

Jaiswal, Rajan, Britt M. E. Moldestad, Marianne S. Eikeland, Henrik K. Nielsen, and Rajan Kumar Thapa. "Image Processing and Measurement of the Bubble Properties in a Bubbling Fluidized Bed Reactor." Energies 15, no. 21 (2022): 7828. http://dx.doi.org/10.3390/en15217828.

Full text

Abstract:

The efficiency of a fluidized bed reactor depends on the bed fluid dynamic behavior, which is significantly influenced by the bubble properties. This work investigates the bubble properties of a bubbling fluidized bed reactor using computational particle fluid dynamic (CPFD) simulations and electrical capacitance tomography (ECT) measurements. The two-dimensional images (along the reactor horizontal and vertical planes) of the fluidized bed are obtained from the CPFD simulations at different operating conditions. The CPFD model was developed in a commercial CPFD software Barracuda Virtual Reactor 20.0.1. The bubble behavior and bed fluidization behavior are characterized form the bubble properties: average bubble diameter, bubble rise velocity, and bubble frequency. The bubble properties were determined by processing the extracted images with script developed in MATLAB. The CPFD simulation results are compared with experimental data (obtained from the ECT sensors) and correlations in the literature. The results from the CPFD model and experimental measurement depicted that the average bubble diameter increased with an increase in superficial gas velocities up to 4.2 Umf and decreased with a further increase in gas velocities due to the onset of large bubbles (potential slugging regime). The bubble rise velocity increased as it moved from the lower region to the bed surface. The Fourier transform of the transient solid volume fraction illustrated that multiple bubbles pass the plane with varying amplitude and frequency in the range of 1–6 Hz. Further, the bubble frequency increased with an increase in superficial gas velocity up to 2.5Umf and decreased with a further increase in gas velocity. The CPFD model and method employed in this work can be useful for studying the influence of bubble properties on conversion efficiency of a gasification reactor operating at high temperatures.

APA, Harvard, Vancouver, ISO, and other styles

Ye, Zhi-Long, Yujun Deng, Xin Ye, Yaoyin Lou, and Shaohua Chen. "Application of image processing on struvite recovery from swine wastewater by using the fluidized bed." Water Science and Technology 77, no. 1 (2017): 159–66. http://dx.doi.org/10.2166/wst.2017.533.

Full text

Abstract:

Abstract Fluidized granulation is one of the common methods used in wastewater treatment and resource recovery with harvesting millimeter-scale large particles. Presently, effective methods are lacking to measure the fluidized granules ranging from micro- to millimeter scales, with the consequence of ineffectively controlling and optimizing the granulation process. In this work, recovering struvite (MgNH4PO4·6H2O) from swine wastewater by using a fluidized bed was taken as an example. Image processing was applied to analyze the properties of different types of struvite granules, including morphology, particle size distribution, number density and mass concentration. Four stages of the struvite crystal evolution were therefore defined: aggregation, aggregate compaction, cluster-agglomerating and coating growth. These stages could occur simultaneously or sequentially. Up-flow rates of 30–80 mm/s in the fluidized bed sustained 600–876 g/L granular solids. Results revealed that the coating-growth granules were formed with compact aggregates or cluster-agglomerating granules as the nuclei. The growth rates for the different types of particles, including population growth, mass increase and particle size enlargement, were determined. In final, a schematic illustration for struvite granulation process is also presented.

APA, Harvard, Vancouver, ISO, and other styles

Susan, Nabasirye, Richard O. Awichi, Stephen Kadedesya, and Anselm O. Oyem. "Application of Computational Fluid Dynamics in Simulation and Optimization of a Fluidized Sugar Bed Dryer." WSEAS TRANSACTIONS ON HEAT AND MASS TRANSFER 18 (December 31, 2023): 286–95. http://dx.doi.org/10.37394/232012.2023.18.25.

Full text

Abstract:

The application of computational fluid dynamics (CFD) in the design of industrial thermal process equipment is of great importance. Food drying is an important process in the sugar processing industry as it helps in the easy of transportation and storage, and also increases the life span of food. In this study a two-dimensional (2D) fluidized bed dryer is designed in the Blockmesh Dict file an application in the OpenFOAM with dimensions height 0.8m and diameter 0.5m. The Navier-Stokes equations were solved to provide the flow variation that occurs inside the fluidized bed dryer in terms of temperature and velocity. For optimization of results, Taguchi analysis was considered and the results show that at a very low temperature below 50°C, the sugar drying process is slow leading to much time being spent for effective sugar drying. Also an increase in flow velocity results in a faster drying rate of sugar granules. During the optimization of the performance of the fluidized sugar bed dryer, the percentage contribution of sugar granules diameter is more significant than other factors and it was also noted that pressure has less significance on the drying process within the fluidized bed.

APA, Harvard, Vancouver, ISO, and other styles

Chen, Lan, Chun Hua Lin, Yun Hui Xie, and Song Du. "Drying Kinetics of Granules in a Fluidized Bed Dryer." Advanced Materials Research 412 (November 2011): 459–62. http://dx.doi.org/10.4028/www.scientific.net/amr.412.459.

Full text

Abstract:

Drying is one of the most important methods for industrial processing since moisture content is an extremely relevant parameter affecting the crucial properties of final products. Nowadays, fluidized bed drying technology is widely employed in various industries. Comparing to other drying methods, fluidized beds generate high efficient thermal conditions. In the current study, drying kinetics of cornstarch granules was investigated in a fluidized bed dryer. The drying experiments were performed at different temperatures and velocities of the inlet drying air and in different granule sizes. The results showed that air temperature had the most significant effect on the drying rate among the three variables. Five drying empirical models were fitted to the experimental moisture data and were evaluated using the determination coefficient and chi-square. Four of the models were found to be suitable for describing the drying behavior of cornstarch granules. Therefore, it is possible for them to be applied to estimate the drying end-point of cornstarch granules as well as to design and scale up of the drying process for the similar products in the fluidized bed dryer.

APA, Harvard, Vancouver, ISO, and other styles

Oshitani, Jun, Keiichiro Tani, and Zennosuke Tanaka. "Dry Mineral Processing by the Gas-Solid Fluidized Bed." JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 36, no. 11 (2003): 1376–83. http://dx.doi.org/10.1252/jcej.36.1376.

Full text

APA, Harvard, Vancouver, ISO, and other styles

Ma, Lin Zhuan, Qiong Fang Cui, Jun Ming Guo, and Ying Jie Zhang. "Cold Test of Circulating Fludized Bed Decomposition Phosphogypsum." Advanced Materials Research 581-582 (October 2012): 1160–63. http://dx.doi.org/10.4028/www.scientific.net/amr.581-582.1160.

Full text

Abstract:

Phosphogypsum is the gypsum as a byproduct of the processing of phosphate ore into fertilizer with sulfuric acid. It’s main components is CaSO4. Circulating fluidized bed(CFB) is the best reactor. In this paper the characteristics of phosphogypsum decomposition were analyzed via CFB reaction in cold test. And applied quantity of wind and bed material influenced bed pressure and the quantity of solides and solids concentration.

APA, Harvard, Vancouver, ISO, and other styles

Cheng, S. S., S. Y. Huang, J. J. Lay, P. S. Tsai, and L. T. Cho. "Population Dynamics of Attached Biofilm in Anaerobic Fluidized Bed Pilot Plant." Water Science and Technology 26, no. 3-4 (1992): 503–10. http://dx.doi.org/10.2166/wst.1992.0430.

Full text

Abstract:

An innovative anaerobic fluidized bed (AFB) with extreme height (21 metres) was designed by the UCL engineers. Food processing wastewater with relatively low COD concentration less than 1,000 ppm was treated. During the start-up period of seven months, the applied organic loadings (2 to 16 kgCOD/m3 − day) were increased stepwise with decreasing the HRT from 24 to 1.5 hours. Certain upflow velocities of 25 and 37 metres/hour were maintained to fluidize the ceramic particles up to 10 metres high. Population dynamics of the biofilm attached on particle medium was investigated in terms of increasing organic loading, cumulation of volatile fatty acids, SEM microscopic morphology and biogas production rate of BMP batch tests. About 0.09 kgVSS/kg – medium of biofilm contributed to more than half amount of biomass while the suspended sludge was susceptible to hydraulic washing-out. Filamentous network and thrix-like anaerobic bacteria were grown initially in the deep holes or crevices of the medium. After this initial biofilm network formation, certain types of short rods and small cocci were embedded in the biofilm. High organic loading and high VTA concentration provided rapid growth of discrete rods which were washed out of the fluidized bed. Appropriate upflow velocity, HRT and organic loading were essential to this process stability.

APA, Harvard, Vancouver, ISO, and other styles

Ruhyat, Nanang, Erna Multahada, and Alfa Firdaus Sirait. "Enhancing Homogeneity and Particle Size Reduction in Coffee–Creamer Mixtures Using Fluidized Bed Mixer." International Journal of Innovation in Mechanical Engineering and Advanced Materials 7, no. 1 (2025): 20. https://doi.org/10.22441/ijimeam.v7i1.31132.

Full text

Abstract:

This study investigates the application of a fluidized bed mixer to improve the homogeneity, particle size distribution, and moisture reduction of coffee and creamer powder mixtures. The research focuses on three types of coffee particles—Type A (145 μm), Type B (100 μm), and Type C (50 μm)—which were mixed with creamer in a weight ratio of 1:0.7. The mixing process was conducted using a prototype fluidized bed mixer with a capacity of 1,000 grams and a blower speed range of 2,800–3,000 rpm. After 10 minutes of mixing, significant reductions in particle size were observed: Type A decreased by 20–30%, Type B by 10–15%, and Type C by 5–10%, with creamer particles also experiencing a 15% reduction. Moisture content dropped from 10.63% to 8.5%, demonstrating the system’s dual function of mixing and drying. Microscopic analysis revealed a uniform particle distribution with minimal agglomeration or segregation, confirming the effectiveness of the fluidized bed mixer in achieving a homogeneous blend. These findings underscore the potential of fluidized bed technology in improving the quality, stability, and handling properties of powder-based products. The results have important implications for instant beverage production, food formulation, and broader powder processing industries, where consistent product performance is essential.

APA, Harvard, Vancouver, ISO, and other styles

Atak, Zeynep, Mehmet Koç, and Figen Kaymak-Ertekin. "Akışkan Yatak Kaplama ve Gıda Uygulamaları." Turkish Journal of Agriculture - Food Science and Technology 5, no. 12 (2017): 1550. http://dx.doi.org/10.24925/turjaf.v5i12.1550-1557.1499.

Full text

Abstract:

There are various food-processing technologies with the aim of protecting foodstuffs from environmental factors and increasing their shelf life. One of these is encapsulation technology, which has recently been used with an increased interest. With the fluidized bed coating, which is one of the physical methods used for encapsulation, the solid core materials are fluidized via the air stream and a film layer is formed on the surface of the core material with the coating material. The applicability of the fluid bed coating technique, as well as particulate properties, is significantly influenced by process variables used in the system, environmental variables and thermodynamic factors. The release characteristics of capsules formed during the process can be changed by various mechanisms such as heating, dissolution, mechanical or chemical fracture etc. and controlled release can be achieved. The fluidized bed coating method not only has the advantage of controlled release but also provides a homogeneous powder product, reduction of fine particles, development of transport and storage facilities, protection of reactive components, and prevention unwanted taste and odour. In this study, researches on fluid bed coating mechanism, fluid bed coating systems and applications of fluid bed systems in the food industry have been reviewed.

APA, Harvard, Vancouver, ISO, and other styles

Apelian, D., and S. K. Chaudhury. "Fluidized bed heat treatment of aluminum cast components." Journal de Physique IV 120 (December 2004): 555–62. http://dx.doi.org/10.1051/jp4:2004120064.

Full text

Abstract:

Heat Treatment and post casting treatments of cast components has always been an important step in the control of microstructure, and resultant properties. In the past, the solutionizing, quenching and ageing process steps may have “required” in total over 20 hours of processing time. With the advent of fluidized bed reactors (FB), processing time has been dramatically reduced. For example, instead of 8-10 hours solutionizing time in a conventional furnace, the time required in FB is less than an hour. Experiments with Al-Si-Mg alloy, (both modified with Sr, and unmodified) were performed, having different diffusion distances (different DAS), and for different reaction times and temperatures. Both the model and the experimental results are presented and discussed.

APA, Harvard, Vancouver, ISO, and other styles

Ding, Yi, Hong You, Wei Sun, et al. "Research on Biological Fluidized Bed System Treatment Performance and Nitrogen Removal Process for Seafood Processing Wastewater with Different Operation Conditions." Water 13, no. 19 (2021): 2630. http://dx.doi.org/10.3390/w13192630.

Full text

Abstract:

In this study, the biological fluidized bed system was used to treat seafood processing wastewater. The sludge was collected from the secondary sedimentation tank of a municipal wastewater treatment plant and acclimated for 200 days before the experiment. The treatment efficiencies of simulated seafood processing wastewater by biological fluidized bed system with different sludge concentrations, different hydraulic retention times (HRTs) and different bio-carriers were studied. The results showed that the removal efficiency of nitrogen and phosphorus increased with the increasing sludge concentration and by extending hydraulic retention time, and the higher removal efficiency of nitrogen and phosphorus could be obtained with the higher specific surface area of the bio-carrier. The nitrogen removal process analysis showed that the nitrification and denitrification activity of sludge could be changed with different operation conditions resulting in different nitrogen removal efficiency in the biological fluidized bed system. This was mainly because the change tendency of the ammonia nitrogen oxidizing process, nitrite oxidizing process, nitrite reduction process and nitrate reduction process was different with different operation conditions in a high salinity environment. Theoretically, the difference of the inhibitory effect of a high-salt environment on different nitrification and denitrification processes could be used to realize shortcut nitrification denitrification by controlling a certain operation condition.

APA, Harvard, Vancouver, ISO, and other styles

Holst, T. C., A. Truc, and R. Pujol. "Anaerobic fluidized beds: ten years of industrial experience." Water Science and Technology 36, no. 6-7 (1997): 415–22. http://dx.doi.org/10.2166/wst.1997.0618.

Full text

Abstract:

The Anaflux process, an upflow anaerobic fluidized bed reactor using a mineral bacterial support, has been employed industrially for ten years treating a variety of food-processing and paper industry wastewaters. This paper describes five aspects of the design and operation of the anaerobic fluidized bed which have proven, from industrial experience, to be essential. The optimization of these factors enables a stable functioning of the process and allows the application of high loading rates. Included are the results of a semi-industrial pilot study, treating wine distillation wastewaters, which demonstrate the present capabilities (OLR=70 kg COD/m3·d) of this type of reactor.

APA, Harvard, Vancouver, ISO, and other styles

Li, Hai Guang, Zeng Wu Zhao, Ke Li, Yong Chuan Wang, and Wen Fei Wu. "Studying the Bubble Characteristics of Gas – Particle Flow in a CFB through Image Analysis." Advanced Materials Research 341-342 (September 2011): 328–32. http://dx.doi.org/10.4028/www.scientific.net/amr.341-342.328.

Full text

Abstract:

This study is based on the image processing system by the authors, and performs microscope observations of the bubbles flow in dense-phase transport region of circulating fluidized beds. The research has tested and experimented on a cold scale-model circulating fluidized bed with a riser that has a 0.30mm × 0. 28mm cross-section and is 2.90 m tall with a video camera utilized to visualize the bubble structure through a transparent Plexiglas wall. The experiment was carried out at different particle sizes, different bed materials ,different heights and different height regions .The result analyzes the impact factor of the bubble size, shape and so on in the wall.

APA, Harvard, Vancouver, ISO, and other styles

Barascud, M. C., F. Ehlinger, M. Pichon, and J. Rouger. "Cod Removal in a Closed Water Circuit of a Papermill by an Anaerobic Fluidized Bed Reactor." Water Science and Technology 26, no. 1-2 (1992): 445–54. http://dx.doi.org/10.2166/wst.1992.0424.

Full text

Abstract:

In waste paper processing mills, entirely closed process water systems cause high specific polluting problems, deteriorate the quality of the paper produced and corrode the equipment. Operating an anaerobic fluidized bed on part of the circulating water could make it possible to achieve lower dissolved organic concentration in the closed process water system. Laboratory experiments have been carried out according to the following flow-sheet : Water circuit; Acidification tank; Fluidized bed. When the anaerobic treatment is added to the water circuit, COD removal is 75% in the circuit and 65% in the acidification tank. Consequently, until reaching steady state, the organic load entering the fluidized bed decreases continuously from 28.75 to 9.86 kg COD/m3 d−l without disturbing biomass activity. From a mass balance, a mathematical model is drawn to check the COD removal in the water circuit and study the transitory period. Efficient fluidized bed performances are achieved even with high organic load (28.75 kgCOD/m3d−1) 52% to 75% COD removal are obtained in the water circuit respectively within 75 and 24 hours. The treated water represents a very small part of the circulating water. To achieve 52% COD removal the equivalent of 0.5 m3/t produced paper is treated. For a 75% COD removal efficiency, treated flow rate is 2.6 m3/t produced paper.

APA, Harvard, Vancouver, ISO, and other styles

Tang, Z. D., P. Gao, Y. X. Han, and W. Guo. "Fluidized bed roasting technology in iron ores dressing in China: A review on equipment development and application prospect." Journal of Mining and Metallurgy, Section B: Metallurgy 55, no. 3 (2019): 295–303. http://dx.doi.org/10.2298/jmmb190520051t.

Full text

Abstract:

Due to the undesirable characteristics of iron ore resources in China, it is necessary to utilize refractory iron ores resources with high efficiency. The mining and mineral processing costs are usually high. The supply of domestic iron ores in China has been in serious shortage for a long time. Therefore, the development and utilization of complex and refractory iron ore resources are extremely urgent. Magnetizing roasting followed by magnetic separation is an important method for the beneficiation of low grade iron ores. More attention has been paid to fluidized bed magnetizing roasting rather than shaft furnace and rotary kiln roasting in recent years. In this paper, the main characteristics of fluidized bed magnetizing roasting technology and the development process of its application in the beneficiation of refractory iron ores are introduced. The research status of several typical fluidized bed roasting processes and equipment in China are also summarized. Moreover, the application prospect of the technology for efficient utilization of low grade hematite, siderite, and limonite ores, as well as iron containing tailings, is analyzed.

APA, Harvard, Vancouver, ISO, and other styles

Qu, Xiaohang, Xiaoni Qi, and Da Fang. "A Novel Liquid–Solid Fluidized Bed of Large-Scale Phase-Changing Sphere for Thermal Energy Storage." Applied Sciences 14, no. 21 (2024): 9828. http://dx.doi.org/10.3390/app14219828.

Full text

Abstract:

The storage of thermal energy has been hindered by the low heat-transfer rate of the solid phase of the phase-changing materiel. With water being the heat-transfer fluid as well as the liquid phase in the liquid–solid two-phase system, a novel type of fluidized bed is designed in this study. Numerous hollow spheres are fabricated with phase-changing materiel encapsulated. Adding the solid–liquid phase-change material capsules to the flowing fluid, the capsules are dispersed suspended in the carrier. The large spheres, 25 mm in present experiment, possess the merits of guaranteeing energy-storage density and tolerating internal interface chaotic motion. Both the fluidization status and phase-changing process are recorded by photography combined with image-processing technology. It is found that the large spheres, with density less than water, can be fluidized by the downward flowing fluid. As the flow rate increases, the expansion ratio of the solid phase increases and the regimes of incipient fluidization and bubbling fluidization can be observed. In comparison to the fixed bed, the oscillation of pressure drop across a fluidized bed is more severe, but the averaged value is less than the fixed bed. The melting and solidifying can be accelerated by 22.6% and 50%, respectively, thus proving the superiority of the fluidized bed in improving the heat-transfer rate while charging/discharging the thermal energy. Three types of basic movement of the spheres are shown to contribute to the enhanced phase-changing rate, which are shifting, colliding and rotating.

APA, Harvard, Vancouver, ISO, and other styles

Zdravkov, Alexander, Doris Groβ, Dragana Životić, Ivan Kojić, Ksenija Stojanović, and Achim Bechtel. "Preliminary petrographic assessment of the suitability of Bobov Dol coals, SW Bulgaria for fluidized-bed coal gasification." Review of the Bulgarian Geological Society 85, no. 1 (2024): 79–84. http://dx.doi.org/10.52215/rev.bgs.2024.85.1.79.

Full text

Abstract:

Coal samples from seams Ia, I, IIa+b, III, IV, and V from the Bobov Dol deposit in SW Bulgaria were studied using optical microscopy and proximate analysis in order to determine their suitability for fluidized-bed gasification. The moderate- to high seam averaged ash yields and the huminite reflectance values in the range 0.43–0.5 classify the studied coals as medium- to very low grade, low-rank A (sub-bituminous) according to the International classification of in-seam coals. Based on the organic composition and ash yields, the coals from seams IIa+b, III, IV, and V seem more suitable for fluidized-bed gasification, but their usefulness will depend largely on the coal pre-processing.

APA, Harvard, Vancouver, ISO, and other styles

Dr., Vishal Yadav Gayatri Pawar* Rutuja Sonawalkar Dr. V. Y. Lokhande. "Challenges and Quality Attributes in Fluidized Bed Processing Method in The Manufacturing of Multiparticulates." International Journal of Pharmaceutical Sciences 3, no. 5 (2025): 3182–93. https://doi.org/10.5281/zenodo.15463206.

Full text

Abstract:

Particle coating in fluidized beds is a frequently used technology to preserve active substances or produce well-defined features of the dispersed materials. The bulk of coating procedures is conducted batch-wise, eliminating the possible advantages of the continuous mode of operation, such as lower cost or enhanced management of the process. Particularly when applying many layers of coating, notable advantages may result from ongoing activity. The current study advances    the creation of continuous fluidized beds. covering for chemical and pharmaceutical uses. It is shown that the operation is feasible. On a coater that runs continuously in one stage. Investigations are carried out utilizing MCC as the nucleus. Innovative technologies are included for manufacturing of multi particulates.

APA, Harvard, Vancouver, ISO, and other styles

BURNS, MARK A., and DAVID J. GRAVES. "The Magnetically Stabilized Fluidized Bed as a Biochemical Processing Tool." Annals of the New York Academy of Sciences 501, no. 1 Enzyme Engine (1987): 103–7. http://dx.doi.org/10.1111/j.1749-6632.1987.tb45693.x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

Sosa, A. V., P. R. Cordoba, and N. I. Perotti. "Fluidized Bed Design Parameters Affecting Novel Lactic Acid Downstream Processing." Biotechnology Progress 17, no. 6 (2001): 1079–83. http://dx.doi.org/10.1021/bp010089s.

Full text

APA, Harvard, Vancouver, ISO, and other styles

Vamvuka, Despina, Stelios Sfakiotakis, and Manolis Kotronakis. "Fluidized bed combustion of residues from oranges’ plantations and processing." Renewable Energy 44 (August 2012): 231–37. http://dx.doi.org/10.1016/j.renene.2012.01.083.

Full text

APA, Harvard, Vancouver, ISO, and other styles

Al-Nuzal, S. M. D., and M. I. Mohammed. "Fluidized Bed Opposed Jet Mill System for Processing Inorganic Materials." IOP Conference Series: Materials Science and Engineering 225 (August 2017): 012002. http://dx.doi.org/10.1088/1757-899x/225/1/012002.

Full text

APA, Harvard, Vancouver, ISO, and other styles

Palone, Orlando, Juan Diego Palacios Aparicio, Domiziana Vespasiano, et al. "Detailed modelling of a double fluidised bed steam gasifier processing woody biomass and solid recovered fuel mixtures." Journal of Physics: Conference Series 2893, no. 1 (2024): 012015. https://doi.org/10.1088/1742-6596/2893/1/012015.

Full text

Abstract:

Abstract Double fluidized bed gasification is based on the circulation of an inert bed between two reaction sections: the gasification reactor, where a solid feedstock, generally biomass. is converted into a syngas by steam or air oxidation; the combustor or riser, where residual char from the thermal decomposition of the feedstock is oxidized by air (in some cases with additional fuel) to provide the energy contribution for the gasification reactions and ensure autothermal operation of the system. In this work, detailed modelling of a dual fluidized bed steam gasification reactor is performed in Aspen Plus by incorporating: (1) gas, char and tar production during thermal decomposition of the feedstock according to experimental correlations developed and taken from the literature, (2) heterogeneous and homogeneous reaction kinetics in the gasifier bed and in the freeboard. The model has been validated by comparison with experimental results on different mixtures containing solid recovered fuels and woody biomass. The model is quite accurate in predicting the gas products composition for different feedstocks mixtures (root mean square error of 12% for CO, CO2, H2 and CH4) and enables coupling with different downstream liquid fuels synthesis processes (synthetic natural gas, methanol, dimethyl-ether, Fischer-Tropsch products etc.).

APA, Harvard, Vancouver, ISO, and other styles

Zhou, Meng, Ozan Kökkılıç, Darryel Boucher, et al. "Investigation of Particle Motion in a Dry Separation Fluidized Bed Using PEPT." Minerals 13, no. 2 (2023): 254. http://dx.doi.org/10.3390/min13020254.

Full text

Abstract:

Developing dry separation methods to replace the commonly used water-based separation has become crucial due to increasing water shortages. One of the candidates for dry processing is gas–solid fluidized beds. The bed behavior and solid motion in fluidized beds have been investigated using various visual and numerical methods for decades. However, there are not enough studies focused on the separation behavior of the fine particles. This work details the investigation of particle motion through a fluidized bed using the positron emission particle tracking (PEPT) technique. Single-particle tracking is a powerful mechanism providing knowledge about separation mechanisms through direct visualization of the particle trajectory determined from recording the particle position over time. In this study, the movements of different-sized beds were characterized by tracking an activated single quartz particle and then by tracking an activated single hematite particle. The separation behavior of a heavy particle was determined for different-sized fractions.

APA, Harvard, Vancouver, ISO, and other styles

Duangkhamchan, Wasan, Prarin Chupawa, Naoshi Kondo, and Donludee Jaisut. "Bed Stability Control in Pulsed Fluidized-Bed Agglomeration of Instant Riceberry Powder Using an Image-Processing Technique." Foods 13, no. 12 (2024): 1859. http://dx.doi.org/10.3390/foods13121859.

Full text

Abstract:

The problematic cohesiveness of food powders can commonly be solved using pulsed fluidized-bed agglomeration. However, progressively larger granules may result in unstable fluidization. The aims of this research study were to investigate fluid bed expansion as affected by particle enlargement and to control its stability using an image-processing technique. Instant riceberry powder (IRP) was agglomerated using varied air pulsation frequencies (1, 2.5, and 4 Hz). Bed expansion captured by image processing revealed that expanded bed height decreased with agglomeration time. The results showed an enlargement of agglomerated IRP, expressed in D10, D50, and D90, with narrower distribution presented by span, and an improvement in bulk and reconstitution properties. The reduced Carr index (22–27%) and Hausner ratio (1.28–1.38) presented fair flowability and intermediate cohesiveness, respectively. Additionally, airflow during agglomerate growth was progressively adjusted using the image-processing method to enhance bed hydrodynamic stability, leading to improved process efficiency and product quality. This proposed approach has potential applications in the food powder manufacturing industry, particularly by enhancing the fluidization of cohesive particles with cracks and channels.

APA, Harvard, Vancouver, ISO, and other styles

Lee, Min Ji, and Sung Won Kim. "Imaging Method for Measurements of Particle Density and Solid Holdup of Entangled MWCNTs in a Fluidized Bed." Materials 12, no. 12 (2019): 2035. http://dx.doi.org/10.3390/ma12122035.

Full text

Abstract:

A measurement method of the apparent particle density of the carbon nanotube (CNT) particles, characterized by enveloped volume formed by loosely entangled nanotubes, has been proposed for the CNT fluidized bed application. The method is characterized by obtaining the enveloped volume from the CNTs imaging under the free falling condition similar to the fluidized bed. The shape of the falling CNT particles in a column (0.1 m long × 0.012 m wide × 0.60 m high) was photographed using a high-speed camera under the sedimentation condition, and the apparent CNT particle density was calculated from the enveloped volume obtained by image-processing for the particles images. The apparent densities and solid holdups by the imaging method at various conditions were compared with those by the previous Hg-porosimetry method for the two types of CNTs (a vertically aligned CNT and two entangle CNTs) and the nonporous polycarbonate particle (a reference particle). The imaging method reflects well the packed bed and fluidized bed phenomena observed in the experiments with reasonable solid holdups, compared with the Hg-porosimetry method showing high densities and low holdups. The sizes of CNT particles predicted with the density by the imaging method were in good agreement with the measured mean particle sizes when calculated based on the Richardson–Zaki equation, indicating the imaging method represented well the enveloped volume and shape formed by entangled nanotubes on the CNTs.

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!