Relevant bibliographies by topics / Shrinking core model

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'Shrinking core model'

Author: Grafiati
Published: 4 June 2021
Last updated: 26 July 2025

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Journal articles on the topic "Shrinking core model"

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Wanta, Kevin Cleary, Felisha Hapsari Tanujaya, Ratna Frida Susanti, Himawan Tri Bayu Murti Petrus, Indra Perdana, and Widi Astuti. "Studi Kinetika Proses Atmospheric Pressure Acid Leaching Bijih Laterit Limonit Menggunakan Larutan Asam Nitrat Konsentrasi Rendah." Jurnal Rekayasa Proses 12, no. 2 (2018): 19. http://dx.doi.org/10.22146/jrekpros.35644.

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A B S T R A C TKinetics study of atmospheric pressure acid leaching (APAL) process is indispensable for extractor design in an industrial scale. So far, the kinetic model used for this process is the shrinking core model. In this study, the shrinking core model was evaluated against experimental data for laterite leaching process using a solution of low concentration nitric acid (0.1 M). Variations in temperature and particle size were carried out at 303–358 K and <75–250 microns. Other operating conditions, such as pulp density, stirring speed, and time were kept at 20% w/v, 200 rpm, and 1
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Moon, Jeremy, and Veena Sahajwalla. "Derivation of Shrinking Core Model for Finite Cylinder." ISIJ International 41, no. 1 (2001): 1–9. http://dx.doi.org/10.2355/isijinternational.41.1.

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Goto, Motonobu, Bhupesh C. Roy, and Tsutomu Hirose. "Shrinking-core leaching model for supercritical-fluid extraction." Journal of Supercritical Fluids 9, no. 2 (1996): 128–33. http://dx.doi.org/10.1016/s0896-8446(96)90009-1.

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da Rocha, Dominik, Eckhard Paetzold, and Norbert Kanswohl. "The shrinking core model applied on anaerobic digestion." Chemical Engineering and Processing: Process Intensification 70 (August 2013): 294–300. http://dx.doi.org/10.1016/j.cep.2013.05.003.

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Anameric, B., and S. K. Kawatra. "Shrinking-core model for pig iron nugget production." Mining, Metallurgy & Exploration 28, no. 1 (2011): 24–32. http://dx.doi.org/10.1007/bf03402321.

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Egorov, Andrey G., and Arthur A. Salamatin. "Bidisperse Shrinking Core Model for Supercritical Fluid Extraction." Chemical Engineering & Technology 38, no. 7 (2015): 1203–11. http://dx.doi.org/10.1002/ceat.201400627.

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Homma, Shunji, Shinji Ogata, Jiro Koga, and Shiro Matsumoto. "Gas–solid reaction model for a shrinking spherical particle with unreacted shrinking core." Chemical Engineering Science 60, no. 18 (2005): 4971–80. http://dx.doi.org/10.1016/j.ces.2005.03.057.

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Pednekar, Pratik, Debangsu Bhattacharyya, Job S. Kasule, Richard Turton, and Raghunathan Rengaswamy. "Development of a hybrid shrinking-core shrinking-particle model for entrained-flow gasifiers." AIChE Journal 62, no. 3 (2015): 659–69. http://dx.doi.org/10.1002/aic.15055.

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Safari, Vida, Gilnaz Arzpeyma, Fereshteh Rashchi, and Navid Mostoufi. "A shrinking particle—shrinking core model for leaching of a zinc ore containing silica." International Journal of Mineral Processing 93, no. 1 (2009): 79–83. http://dx.doi.org/10.1016/j.minpro.2009.06.003.

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Kwiatkowska-Marks, Sylwia, Marek Wójcik, and Leonard Kopiński. "An alternative method to determine the diffusion coefficient for the shrinking core model." Polish Journal of Chemical Technology 13, no. 2 (2011): 54–56. http://dx.doi.org/10.2478/v10026-011-0024-7.

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An alternative method to determine the diffusion coefficient for the shrinking core model A new method to determine the effective diffusion coefficient of sorbate in sorbent granule based on the analytical solution of the shrinking core model (SCM) has been proposed. The experimental data presented by Lewandowski and Roe1 concerning the sorption of copper ions by alginate granules have been applied to compare the analytical and numerical methods. The results obtained by both methods are very close.
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Dissertations / Theses on the topic "Shrinking core model"

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Carabin, Pierre. "A numerical investigation of the isothermal and nonisothermal shrinking core model /." Thesis, McGill University, 1992. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=56786.

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The shrinking core model, including the effect of transient diffusion, non-linear kinetics and non-isothermal effects was solved using finite elements in space and finite differences in time. The method of solution proposed by Murray and Carey was used with some modification to include an adjustable time step.<br>The solution for the first order isothermal case agreed well with the well-known pseudo steady state solution, within the conditions defined by Bischoff. At high dimensionless bulk concentration, the solution differed from the pseudo steady state especially at high Damkohler number (D
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GONG, PENG. "A SUC MODEL STUDY FOR SOLIDIFICATION/STABILIZATION OF ORGANIC HAZARDOUS WASTES WITH REACTIVATED CARBON." University of Cincinnati / OhioLINK, 2001. http://rave.ohiolink.edu/etdc/view?acc_num=ucin983566537.

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Svensson, Marcus. "Numerical modelling of calcination of limestone : An evaluation of existingcalcination model." Thesis, Umeå universitet, Institutionen för tillämpad fysik och elektronik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-184517.

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Calcination is important for modern society as we know it since products from the reaction is used inseveral industries. Calcination is a chemical reaction where a solid particle, e.g., limestone, is exposedto high temperature which causes volatile impurities to be released from the particle.One of the main challenges with lime production is the mere scale of commercial production. Ensuringgood calcination and high-quality lime in laboratory scale is relatively easy, whereas commercial limekilns produce 100 – 800 tons lime each day, causing the conditions to be much more challenging. Theenviro
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Bharadwaj, Hari Krishna. "CO2 Separation Using Regenerable Magnesium Solutions Dissolution, Kinectics and VLSE Studies." University of Cincinnati / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1352485483.

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Melchiori, Tommaso. "Study of non catalytic gas-solid reactions: development of a single particle model." Doctoral thesis, Università degli studi di Padova, 2014. http://hdl.handle.net/11577/3423565.

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This thesis investigates single particle models to describe non catalytic gas-solid reactions. A comparative study was made between the traditional shrinking core model and more detailed continuous models, involving the solution of microscopic balances for the solid and gas phases inside a single porous particle. Such a study proved that in some cases the use of the shrinking core model can lead to severe errors in the prediction of conversion, and that kinetic parameters in SCM are affected by the particle size. Different diffusion models were tested for the continuous model, and the inaccura
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Chen, Li. "Fast pyrolysis of millimetric wood particles between 800°C and 1000°C." Thesis, Lyon 1, 2009. http://www.theses.fr/2009LYO10258.

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Ces travaux de thèse s’intègrent au sein du projet Biocarb lancé par le Commissariat à l’Énergie Atomique dont l’objectif est de développer des procédés de production de carburants liquides ou gazeux à partir de gaz de synthèse riche en H2 et CO obtenu par gazéification de la biomasse lignocellulosique. L’objectif de cette étude est d’étudier le comportement de particules de biomasse millimétriques lors de la pyrolyse dans des conditions types de gazéifieurs industriels tels que les réacteurs à lit fluidisé ou à flux entraîné, qui fonctionnent pour des flux de chaleur élevés (105 – 106 W⋅m-2)
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Mateus, Tavares Ana Raquel. "Etude de la précipitation de la fluorine en milieu alcalin et application à un procédé en réacteur à lit fluidisé." Thesis, Saint-Etienne, EMSE, 2013. http://www.theses.fr/2013EMSE0710/document.

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Le procédé adopté par COMURHEX pour le traitement des effluents très chargés en fluor est basé sur l’addition d’un composé alcalin Ca(OH)2 (portlandite) pour faire précipiter de la fluorine (CaF2). Mis en œuvre par le passé dans un décanteur le développement d’un nouveau procédé en lit fluidisé a été envisagé pour augmenter l’efficacité du traitement des effluents. Des essais concluants ont été réalisés sur une installation pilote qui ont démontré l’efficacité de la précipitation en lit fluidisé à assurer une réduction satisfaisante de la concentration du fluor. Cependant, les phénomènes mis e
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Hamidouche, Ziad. "Modeling and numerical simulation of coupled reactive fluidized beds in a Chemical Looping Combustion system." Phd thesis, Toulouse, INPT, 2017. http://oatao.univ-toulouse.fr/17921/1/hamidouche.pdf.

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In this work, reactive unsteady three-dimensional numerical simulations of a Chemical Looping Combustion (CLC) plant are performed. The plant is a 120 kWth pilot working with Ca-Mn-based material as selected oxygen carrier. Numerical simulations are performed by NEPTUNE_CFD code using an Euler-Euler approach which computes both the gas and the solid phases in an Eulerian fashion accounting for specific closures in order to model interphase mass, momentum and energy transfers. Reduction and oxidation heterogeneous (i.e. gas-solid) reactions are modeled by means of a grain model (shrinking core
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AKUETTEH, TEKAI. "SOLID ADSORPTION MEDIA FOR HF & HCl FOLLOWING REFRIGERANT DESTRUCTION." 2013. http://hdl.handle.net/10222/35319.

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This work explored the viability of two solid adsorbents, limestone and cement powder, for use in a flow-through packed-bed column for HCl and HF gas neutralization following refrigerant destruction. Neutralization tests performed at 408 K using 5% HCl in N2 and 5% HF in N2, showed that limestone had a significantly higher adsorption capacity for both HF & HCl, future tests therefore utilized limestone only. The results showed that ~49% of the fed HCl and between 7.8% - 16.2% of the fed HF gases were adsorbed by 0.007 kg of limestone for a 6.67×10-6 m3/s (STP) flow rate over 30 – 180 minutes.
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Koech, Lawrence. "The dissolution of limestone, coal fly ash and bottom ash in wet flue gas desulphurization." Thesis, 2015. http://hdl.handle.net/10352/356.

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M. Tech. (Department of Chemical Engineering, Faculty of Engineering and Technology): Vaal University of Technology<br>Strict environmental regulation on flue gas emission has led to the implementation of FGD technologies in power stations. Wet FGD technology is commonly used because it has high SO2 removal efficiency, high sorbent utilization and due to availability of the sorbent (limestone) used. SO2 is removed by passing flue gas through the absorber where it reacts with the slurry containing calcium ions which is obtained by dissolution. This study presents the findings of the dissolutio
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Books on the topic "Shrinking core model"

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Emmott, Bill. Japan's Far More Female Future. Oxford University Press, 2020. http://dx.doi.org/10.1093/oso/9780198865551.001.0001.

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The Japan that the world admired during the 2019 Rugby World Cup is a model of social stability, resilience, and efficiency. But it carries important vulnerabilities, rooted in its ageing demography and a population shrinking by 500,000 a year, made much worse by a declining marriage rate and low fertility, both of which have their source in a combination of growing financial insecurity, severe gender inequality, and poor use of human capital. Over the three decades since its 1990 financial crisis it has seen a deep divide emerge in labour markets both for men and for women between the 60 per
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Book chapters on the topic "Shrinking core model"

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Golubev, Vladimir, Dmitry Chistyakov, Dmitry Mayorov, Evgeniy Fomichev, and Ilya Blednykh. "Fast Solution of Shrinking Core Model for Calcination Applications." In Light Metals 2022. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-92529-1_2.

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Hinsenveld, Merten, and U. Cincinnati. "The Shrinking Core Model as a Representation of Leaching Processes in Cement Stabilized Wastes." In Contaminated Soil ’95. Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-011-0421-0_98.

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Elmisaoui, Sanae, Saad Benjelloun, Abdellah Chkifa, and Abderrazak M. Latifi. "A sparse polynomial surrogate model for the shrinking core model in phosphate ore digestion." In Computer Aided Chemical Engineering. Elsevier, 2022. http://dx.doi.org/10.1016/b978-0-323-95879-0.50216-2.

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Dashti, Hossein, Daniel Thomas, Amirpiran Amiri, and Xia Lou. "Variations of the shrinking core model for effective kinetics modeling of the gas hydrate-based CO2 capture process." In Computer Aided Chemical Engineering. Elsevier, 2019. http://dx.doi.org/10.1016/b978-0-12-818634-3.50282-4.

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Denslow, Kristin N., and L. Monique Pittman. "Hamlet as Resisting Subject: Intersecting Artistic Tactics in the Mousetrap s of Doran and Godwin." In The Ethical Implications of Shakespeare in Performance and Appropriation. Edinburgh University Press, 2024. https://doi.org/10.3366/edinburgh/9781399524919.003.0003.

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Over the course of Hamlet’s performance history, the play-within-a-play has functioned as a meta-theatrical moment manifesting changing assumptions about the truth-telling potential of staged Shakespeare. In their Royal Shakespeare Company filmed stagings of Hamlet’s play, Gregory Doran (2010) and Simon Godwin (2016) explore ocular surveillance as epistemic method, highlighting the intermedial mechanics of reproduction in order to consider how the digitally imbricated human subject talks back to systems of power. As digital networks come to define and, often invisibly, confine the human in the
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Conference papers on the topic "Shrinking core model"

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Wang, E. G., and H. X. Guo. "Modified Shrinking Core Model for Removal of Hydrogen Sulfide with T302 Desulfurizer." In International Conference on Materials Chemistry and Environmental Protection 2015. Atlantis Press, 2016. http://dx.doi.org/10.2991/meep-15.2016.6.

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Ma, Qin. "Analogy Between Transient Heat Conduction and Dissolution of Solid Particles in Liquids Based on the Shrinking Core Model." In ASME 2017 Heat Transfer Summer Conference. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/ht2017-5009.

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In this study, the analogy between transient heat conduction and mass transfer is applied to investigate the dissolution behavior of solid particles in liquids, particularly, for the transport phenomenon associated with the controlled drug release process. Mathematical modeling is established assuming the shrinking core is solely caused by the diffusion mechanism. The transport governing equations for the dissolution process of controlled drug release are compared with the transient heat conduction differential equations. Analogous quantities, certain analytical solutions and numerical solutio
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Aggarwal, Mohit, B. Erik Ydstie, and Lee R. White. "A Dynamic Systems Model for Gasifier in IGCC." In ASME 2008 Power Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/power2008-60087.

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We combine the concepts of element mole balance, population balance and shrinking core mechanism to develop a dynamic systems model for the Gasifier in an IGCC process. There is need for such a model for process analysis, optimization and low level control studies. The main idea is to use invariants, like elements (atoms), instead of compounds. This reduces the size of state space and we are able to explore the idea of a minimal state space representation for a thermodynamic process. The idea of a minimal state plays an important role in control theory as it is closely related to the concepts
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Kumar, Mayank, Cheng Zhang, Rory F. D. Monaghan, Simcha L. Singer, and Ahmed F. Ghoniem. "CFD Simulation of Entrained Flow Gasification With Improved Devolatilization and Char Consumption Submodels." In ASME 2009 International Mechanical Engineering Congress and Exposition. ASMEDC, 2009. http://dx.doi.org/10.1115/imece2009-12982.

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In this work, we use a CFD package to model the operation of a coal gasifier with the objective of assessing the impact of devolatilization and char consumption models on the accuracy of the results. Devolatilization is modeled using the Chemical Percolation Devolitilization (CPD) model. The traditional CPD models predict the rate and the amount of volatiles released but not their species composition. We show that the knowledge of devolatilization rates is not sufficient for the accurate prediction of char consumption and a quantitative description of the devolatilization products, including t
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Nakamura, Masato, Marco J. Castaldi, and Nickolas J. Themelis. "Numerical Analysis of Size Reduction of Municipal Solid Waste Particles on the Traveling Grate of a Waste-to-Energy Combustion Chamber." In 14th Annual North American Waste-to-Energy Conference. ASMEDC, 2006. http://dx.doi.org/10.1115/nawtec14-3193.

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The size reduction of municipal solid waste (MSW) particles on the reverse acting traveling grate of a waste-to-energy (WTE) combustion chamber was estimated by means of a numerical model combining the particle size distributions (PSD) of MSW and combustion residues and the Shrinking Core Model (SCM). This new integrated model was used to simulate the particle behavior on the grate. During their travel on the moving grate, the sizes of the particles are reduced by combustion, breakage, and compaction. This study shows the calculation of the particle size change using this model and comparison
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Kurniawan, Rizki Fajar, Muhammad Wildanil Fathoni, and Mohammad Zaki Mubarok. "Kinetics analysis of atmospheric agitation leaching of limonitic nickel ore in sulfuric acid by incorporating the effect of particle size distribution in shrinking core model." In 5TH INTERNATIONAL SEMINAR ON METALLURGY AND MATERIALS (ISMM2022): Strengthening research and innovation in metallurgy and materials for sustainable economic development. AIP Publishing, 2024. http://dx.doi.org/10.1063/5.0186090.

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Do, Duc Hai, and Eckehard Specht. "Numerical Simulation of Heat and Mass Transfer of Limestone Decomposition in Normal Shaft Kiln." In ASME/JSME 2011 8th Thermal Engineering Joint Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/ajtec2011-44578.

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A mathematical model of lime calcination process in normal shafts kiln has been developed to determine the heat and mass transfer between the gas and the solid. The model is one-dimensional and steady state. The transport of mass and energy of the gas and the solid is modeled by a system of ordinary differential equations. A shrinking core approach is employed for the mechanics and chemical reactions of the solid material. The model can be used to predict the temperature profiles of the particle bed, the gas phase along the length of kiln axis. The calcination behavior of the particle bed can
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Alyaser, Monem, Rajesh Nair, and Prabhu Sathyamurthy. "CFD Modeling of Indirectly Fired Integrated Oxygen-Free Gasification and Steam Generation System." In ASME 2010 International Mechanical Engineering Congress and Exposition. ASMEDC, 2010. http://dx.doi.org/10.1115/imece2010-40942.

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This paper introduces a novel gasification reactor that uses a process of steam gasification of the carbonaceous feedstock by indirectly heating the reacting flow through a high temperature heat exchanger without the need for partial with pure oxygen. It demonstrates the importance of gasification as a method for increasing power plant efficiency and reducing emissions. A computational fluid dynamics (CFD) model was created to model this novel gasifier and the results of the model that illustrates the efficiency and advantages of the new gasifier. The heating fuel was assumed to be fully combu
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Stamatiou, Anastasia, Peter G. Loutzenhiser, and Aldo Steinfeld. "Solar Syngas Production From H2O and CO2 via Two Step Thermochemical Cycles Based on FeO/Fe3O4 Redox Reactions: Kinetic Analysis." In ASME 2010 4th International Conference on Energy Sustainability. ASMEDC, 2010. http://dx.doi.org/10.1115/es2010-90009.

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Syngas production via a two-step H2O/CO2-splitting thermochemical cycle based on FeO/Fe3O4 redox reactions is considered using highly concentrated solar process heat. The closed cycle consists of: 1) the solar-driven endothermic dissociation of Fe3O4 to FeO; 2) the non-solar exothermic simultaneous reduction of CO2 and H2O with FeO to CO and H2 and the initial metal oxide; the latter is recycled to the first step. The second step was experimentally investigated by thermogravimetry for reactions with FeO in the range 973–1273 K and CO2/H2O concentrations of 15–75%. The reaction mechanism was ch
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Ada´nez, Juan, Francisco Garci´a-Labiano, Luis F. de Diego, et al. "Optimizing the Fuel Reactor for Chemical Looping Combustion." In 17th International Conference on Fluidized Bed Combustion. ASMEDC, 2003. http://dx.doi.org/10.1115/fbc2003-063.

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A mathematical model for a bubbling fluidized bed has been developed to optimize the performance of the fuel reactor in chemical looping combustion systems. This model considers both the hydrodynamic of the fluidized bed (dense bed and freeboard) and the kinetics of the oxygen carrier reduction. Although the model is valid for any of the possible oxygen carriers and fuels, the present work has been focused in the use of a carrier, CuO-SiO2, and CH4 as fuel. The shrinking core model has been used to define the particle behavior during their reduction. The simulation of the fuel reactor under di
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