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Journal articles on the topic 'Flue gas treatment'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Zhao, Junyou, Chongning Liu, Yafei Dong, Qingqiang He, Fawei Wan, Thibaud Friedrich, Xiaodong Bi, and Yamin Tian. "Flue gas fine treatment by ejecting technology." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 233, no. 12 (November 25, 2018): 4311–18. http://dx.doi.org/10.1177/0954406218813395.

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PM2.5 refers to fine particles with a diameter of 2.5 µm or less in the air. With PM2.5 continuously impacting people's lives, researchers are starting to pay more attention on the treatment of flue gas emitted from coal-fired boilers. This paper introduces a treatment device for ejected fine flue gas. The device uses ejectors to effectively remove acid substances and large dust particles contained in flue gas, and uses air dynamic ultrasonic atomizer to eliminate micro dust particles effectively. The overall scheme of the flue gas processing device is designed, the principle and simulation results of the main components of the ejector are studied, and the optimal value of the ejector ratio is determined by experiments. Finally, the efficiency of processing dust and sulfur dioxide in the flue gas is tested during experiments on the industrial worksite. For the gas emissions from domestic small- and medium-sized coal-fired boilers, this device is more efficient and costs less energy.

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2

AOKI, Shinji. "Electron-beam flue gas treatment." Journal of the Fuel Society of Japan 69, no. 3 (1990): 165–71. http://dx.doi.org/10.3775/jie.69.165.

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3

Kano, Y., Y. Kawashima, and T. Hayasaka. "Catalyst for flue gas treatment." Zeolites 15, no. 8 (November 1995): 756. http://dx.doi.org/10.1016/0144-2449(95)96857-w.

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4

Yin, Mei Yao, Xiao Juan Zhao, Chen Guang Li, Hong Da Cui, and Juan Wang. "Treatment, Electricity Harvesting and Sulfur Recovery from Flue Gas Pre-Treatment Wastewater Using Microbial Fuel Cells with Sulfate Reduction Bacterial." Advanced Materials Research 1073-1076 (December 2014): 920–23. http://dx.doi.org/10.4028/www.scientific.net/amr.1073-1076.920.

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Aiming at the problem of the traditional flue gas desulfurization and effluent disposal, two identical dual-chambered Microbial fuel cells (MFCs) are designed to remove man-made flue gas pre-treatment wastewater (FGPW). Glucose is used as the carbon source of the Sulfate reducing bacteria (SRB). Carbon cloth is used as the material of anodic and cathode. The treatment performance of flue gas pre-treatment wastewater and the possibility of electricity harvesting and sulfur recovery were investigated. The results show that the output voltage is 0.68-0.72V and the maximum current density is 28.12mA/m2 at pH=7.520. The concentration of sulfate measured with ion chromatography is decreased gradually during the operation of MFC. The elemental sulfur is found in carbon cloth (taken from the MFC after working for 58 days) by analysis with XPS. The results suggest that treatment of flue gas pre-treatment wastewater and electricity harvesting and sulfur recovery by MFC is technical feasibility.

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5

Han, Jun Shu, Li Hua Wu, and Zheng Wang. "Research on Flue Gas Emission Control Technology of Vehicular Pyrolysis Treatment Equipment for Medical Waste." Advanced Materials Research 1010-1012 (August 2014): 973–78. http://dx.doi.org/10.4028/www.scientific.net/amr.1010-1012.973.

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This Thesis introduces the principle and structure of vehicular pyrolysis treatment furnace for medical waste and analyzes two flue gas purification structures of direct purification and coil purification and the effects, existing problems and forming reasons of flue gas emission of aftertreatment underwater aeration quenching structure; purification structure and quenching structure designed based on 3T control theory can control flue gas emission quality effectively and greatly reduce the influence on the environment due to the secondary synthesis of Dioxin and these structures have met national safety and emission standards; flue gas emission technology is a key technology for miniaturization and light-weight trend of pyrolysis treatment equipment for medical waste and a significant technological base for development of pyrolysis treatment car for medical waste.

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6

Kikuchi, Ryunosuke. "Factors Influencing SO2 Removal Efficiency by Electron Beam Processing of Coal-Fired Flue Gas Treatment." Energy & Environment 9, no. 5 (August 1998): 535–47. http://dx.doi.org/10.1177/0958305x9800900506.

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A bench-scale test (800 Nm3/h) for electron beam treatment of flue gas was conducted. It was concluded that the method is favourable for treatment of flue gas with a high SO2 concentration (5,500 ppm) at low electron beam irradiation (5 kGy). Results are consistent with the claim that SOx is removed from flue gas by the reaction of SOx with ammonia, and the intermediate salts formed are oxidised by radicals to sulphate salts consisting mainly of ammonium sulphate (a N-fertiliser). A typical flue gas desulphurization (FGD) method such as the wet limestone process cannot remove NOx and SO3 effectively (Ando, 1990), but the electron beam process removes SO2, SO3 and NOx simultaneously without generating waste water and CO2.

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7

Aoki, Sinji, and Ryoji Szuki. "Electron-Beam Flue-Gas Treatment System." IEEJ Transactions on Fundamentals and Materials 114, no. 5 (1994): 349–55. http://dx.doi.org/10.1541/ieejfms1990.114.5_349.

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8

Selivanovs, Jevgenijs, Edgars Vigants, Vivita Priedniece, Ivars Veidenbergs, and Dagnija Blumberga. "Flue gas treatment multi-criteria analysis." Energy Procedia 128 (September 2017): 379–85. http://dx.doi.org/10.1016/j.egypro.2017.09.056.

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9

Sayari, Abdelhamid, Youssef Belmabkhout, and Rodrigo Serna-Guerrero. "Flue gas treatment via CO2 adsorption." Chemical Engineering Journal 171, no. 3 (July 2011): 760–74. http://dx.doi.org/10.1016/j.cej.2011.02.007.

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10

Liu, Xiaoyu, Bing Yang, and RuoZheng Li. "Flue Gas Treatment of Desulphurization Wastewater." IOP Conference Series: Earth and Environmental Science 634 (February 5, 2021): 012022. http://dx.doi.org/10.1088/1755-1315/634/1/012022.

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11

Majchrzak-Kucęba, Izabela, Dariusz Wawrzyńczak, Janusz Zdeb, Wojciech Smółka, and Artur Zajchowski. "Treatment of Flue Gas in a CO2 Capture Pilot Plant for a Commercial CFB Boiler." Energies 14, no. 9 (April 26, 2021): 2458. http://dx.doi.org/10.3390/en14092458.

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The problem of reducing carbon dioxide emissions from flue gas, particularly from flue gas originating from coal-firing CFB systems, is currently an important challenge. Many centers around the world have tested post-combustion CO2 capture systems. One of these systems, operated using DR-VPSA adsorption technology (dual-reflux vacuum pressure swing adsorption), was tested under the Strategic Project in Poland. The flue gas in this study originated from a supercritical CFB boiler (460 MWe). An important problem involved in capturing CO2 from flue gas is the occurrence of SO2 and NOx. These substances have a negative effect on the CO2 adsorption process. In this study, commercial impregnated activated carbon was used to remove SO2 and NOx from CFB flue gas in the pre-treatment section during the tests of a pilot CO2 capture unit in a large-scale CFB boiler at the Lagisza Power Plant (Poland). The spent activated carbon was analyzed using several different methods (N2 adsorption–desorption isotherms, SEM-EDX, XRD, FTIR, and TG) to evaluate the efficiency of the operation and life span of the adsorbent used in the SO2 and NOx removal unit. The results demonstrate that using commercial impregnated activated carbon in the pre-treatment section ensures sufficient flue gas purification and the removal of sulfur oxides but remains insufficient for nitrogen oxides.

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12

Hao, Su Ju, Wu Feng Jiang, Yu Zhu Zhang, and Bing Liu. "Removal of Sulfur Dioxide from Sintering Flue Gas with Coking Wastewater." Advanced Materials Research 287-290 (July 2011): 910–15. http://dx.doi.org/10.4028/www.scientific.net/amr.287-290.910.

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Coking wastewater comprising a lot of ammonia is a good desulfurizer for recycling. Sintering flue gas is characterized by large volume, low sulfur dioxide (SO2) concentration and large variation amplitude and etc. The purpose for treating waste with waste can be carried out by treating sintering flue gas with coking wastewater. This paper uses a spray tower countercurrent device, ensures the contact between coking wastewater and sintering flue gas, and detects SO2 concentration of inlet flue gas and outlet flue gas on line by using an automatic flue gas detection instrument. This paper studies on the change regularity for the SO2 concentration at outlet flue gas during the process of treating sintering flue gas with coking wastewater, the influence of SO2 initial concentration in sintering flue gas to the removal efficiency of SO2, the influence of gas-liquid ratio between the sintering flue gas and the coking wastewater to the removal efficiency of SO2, and the change regularity for the pH value of coking wastewater after desulfurizing. The results show that the sintering flue gas which is treated can live up to the atmospheric pollutant effluent standard of iron and steel industry; the pH value of coking wastewater is reduced after treating, and the conditions for the implementation of subsequent coking wastewater treatment process are provided.

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13

Deng, Jia-jia, Liang-ming Pan, De-qi Chen, Yu-quan Dong, Cheng-mu Wang, Hang Liu, and Mei-qiang Kang. "Numerical simulation and field test study of desulfurization wastewater evaporation treatment through flue gas." Water Science and Technology 70, no. 7 (August 26, 2014): 1285–91. http://dx.doi.org/10.2166/wst.2014.359.

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Aimed at cost saving and pollution reduction, a novel desulfurization wastewater evaporation treatment system (DWETS) for handling wet flue gas desulfurization (WFGD) wastewater of a coal-fired power plant was studied. The system's advantages include simple process, and less investment and space. The feasibility of this system has been proven and the appropriate position and number of nozzles, the spray droplet size and flue gas temperature limitation have been obtained by computational fluid dynamics (CFD) simulation. The simulation results show that a longer duct, smaller diameter and higher flue gas temperature could help to increase the evaporation rate. The optimal DWETS design of Shangdu plant is 100 μm droplet sprayed by two nozzles located at the long duct when the flue gas temperature is 130 °C. Field tests were carried out based on the simulation results. The effects of running DWETS on the downstream devices have been studied. The results show that DWETS has a positive impact on ash removal efficiency and does not have any negative impact on the electrostatic precipitator (ESP), flue gas heat exchanger and WFGD. The pH values of the slurry of WFGD slightly increase when the DWETS is running. The simulation and field test of the DWETS show that it is a feasible future technology for desulfurization wastewater treatment.

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14

Jiang, Dan Ning, Hai Wei Sha, Guo Hui Gong, Jing Song, Hai Tao Xu, Chang Cheng Zhou, and Kai Shen. "Fundamental Research and Demonstration Project of Evaporation Treatment of Wastewater from FGD in Flue Gas Duct." Advanced Materials Research 864-867 (December 2013): 434–37. http://dx.doi.org/10.4028/www.scientific.net/amr.864-867.434.

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The desulfurization wastewater is a kind of intractable wastewater which comes from the process of wet desulfurization. There are many shortcomings of traditional development methods. Desulfurization wastewater evaporation treatment in flue gas duct as a new processing technology. This approach of evaporating desulfurization wastewater by flue gas is feasible. The feasibility of the demonstration project of boiler flue gas treating wastewater on 4# boiler in Changshu Power Company limited was analyzed; the computational fluid dynamics (CFD) software FLUENT was adopted to simulated the pressure field and velocity field in the outlet flue pipes of air pre-heater. The concrete arrangement mode and the number of the spray lances were determined by calculations. The temperature of the flue gas is tested after the system was put into operation. The results showed that this technology can realize the desulfurization wastewater with zero discharge without hurting the work of electrostatic precipitator. The demonstration project is the first of its kind in domestic power industry; this study provides experiences and references of power plant desulfurization wastewater with zero discharge.

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15

Pan, Si Wei, Nian Tang, Jiang Jun Hu, Ji Fu Kuang, Min Qi, and Kai Ye. "Experimental Study on the Spray of Mercury Removal Performance of Flue Gas Desulfurization Wastewater." Advanced Materials Research 807-809 (September 2013): 1483–88. http://dx.doi.org/10.4028/www.scientific.net/amr.807-809.1483.

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For coal-fired power plant boiler flue gas desulfurization wastewater’s actual spraying proposed combination bag house dust while mercury removal process. Experimental study of the coal-fired boiler flue gas spraying chlorine ions and other halogens desulfurization wastewater modified fly ash flue gas mercury performance. Studies showed that desulfurization wastewater fly ash on chloride ion enhanced oxidation of elemental mercury, with the increase in the amount sprayed desulfurization wastewater, flue gas mercury capacity increased. Desulfurization wastewater add another halogen element can promote flue gas mercury performance, the effect of iodine was the most significant, followed by bromine. The desulfurization wastewater as a modified liquid sprayed into the flue modified fly ash, fly ash can improve mercury removal performance, eliminate the need for desulfurization wastewater treatment, cost savings, achieve desulfurization wastewater recycling.

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16

Czerwińska, Justyna, and Grzegorz Wielgosiński. "Functioning of the flue gas treatment system in Polish municipal waste incineration plants." Przegląd Naukowy Inżynieria i Kształtowanie Środowiska 29, no. 1 (April 4, 2020): 108–19. http://dx.doi.org/10.22630/pniks.2020.29.1.10.

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All municipal waste incineration plants operating in Poland are discussed and their flue gas treatment systems are described in detail in the article. A comparison of performance indicators, i.e. the amount of raw materials consumed particularly in flue gas treatment systems, is presented. The article also summarizes the results of emission measurements for eight incineration plants in the years 2016–2019.

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17

Vendrup, Michael, and Christina Sund. "Treatment of Wastewater from Flue Gas Cleaning." Water Science and Technology 29, no. 9 (May 1, 1994): 307–12. http://dx.doi.org/10.2166/wst.1994.0498.

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Wet scrubber systems for flue gas treatment, giving rise to a production of wastewater contaminated with heavy metals, are used at many coal-fired power stations in Europe, the USA and Japan. In order to remove the heavy metals from the wastewater, chemical precipitation with hydroxide and sulphide is applied. Results from two full-scale plants are given. Due to strict regulations for landfilling of waste contaminated with heavy metals, the amount of sludge must be minimised. Different techniques to meet this requirement are described. Biological post-treatment to reduce the nitrogen content of the wastewater will apparently be a need in the future, and pilot-scale testing is presently being carried out to determine the basic operation rules for a full-scale plant.

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18

Ludewig, H., B. Haase, and U. Fritsching. "Catalytic Flue Gas Treatment from Nitriding Processes." Chemical Engineering & Technology 33, no. 1 (January 2010): 145–54. http://dx.doi.org/10.1002/ceat.200900291.

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19

Gallimberti, Ivo. "Impulse corona simulation for flue gas treatment." Pure and Applied Chemistry 60, no. 5 (January 1, 1988): 663–74. http://dx.doi.org/10.1351/pac198860050663.

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20

Sun, Zhi Guo, Hong Yong Xie, and Chang Wen Ma. "Development Status of Resourceable Technology of Flue Gas Desulphurization." Advanced Materials Research 1073-1076 (December 2014): 775–78. http://dx.doi.org/10.4028/www.scientific.net/amr.1073-1076.775.

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Flue gas desulfurization (FGD) is one of the most effective techniques to control the emission of SO2 from the combustion of coal. The by-products of FGD may occupy much land and cause the second pollution. The resourceable technology of FGD changes SO2 from flue gas to sulfur-containing by-product, by which it is possible to solve the problem of desulfurization by-product treatment. This paper reviews the recent development of resurceable technology of FGD with special reference to removal of SO2 from flue gas.

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21

Yang, Yingxin, Lu Zhong, Xueliang Xue, Jingling Hu, Xiaotu Hu, and Yong Liu. "Orthogonal Experiments on Ozone Oxidation Denitration of Sintering Flue Gas." E3S Web of Conferences 53 (2018): 01028. http://dx.doi.org/10.1051/e3sconf/20185301028.

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Ozone oxidation denitration process has become the most closely watched sintering flue gas denitration technology currently. In order to investigate the influence of different operating conditions on NO oxidation in practical engineering application of this technology, an ozone oxidation system was built, and sintering flue gas was extracted from the pipeline between the induced draft fan and the desulfurization tower. The influence of flue gas flow and inlet NO concentration on NO oxidation was investigated by orthogonal experiments. The results indicated that NO oxidation efficiency increased with the O3 yield of ozone generator and O3 dosage under any flue gas conditions. Under the same inlet NO concentration, NO oxidation efficiency decreased with the increase of flue gas flow. Under the same flue gas flow and O3 dosage, with the increase of inlet NO concentration, the O3 utilization rate increased while the average oxidation energy consumption of each NO molecule decreased, which was beneficial to promote the NO oxidation efficiency. In practical engineering application, the setting of O3 dosage should take into account both engineering design indicators and economy. Ozone oxidation denitration process could achieve NO oxidation efficiency higher than 90% through reasonable design, indicating a good industrial application prospect in the treatment of sintering flue gas.

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22

Wang, Qiu Ping, Lei Han, Miao Zhang, and Feng Li. "Boiler Flue Gas Treatment of Cooling Water Circulation Device Control System Based on PLC." Applied Mechanics and Materials 598 (July 2014): 587–90. http://dx.doi.org/10.4028/www.scientific.net/amm.598.587.

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Boiler flue gas treatment of cooling water circulation device is a device which can produce dilute sulfuric acid by absorbing SO2 in the flue gas of boiler combustion and add dilute sulfuric acid to the circulating water. Adding dilute sulfuric acid to the circulating water, can reduce pH value of the thermal power plant cooling water, obstacles and reduce the condenser fouling. This paper has introduced the working process of the boiler flue gas treatment of cooling water circulation device and the design method of the control system based on SIEMENS S7-300 series PLC. The control system realizes data acquisition of the water level and the pH value, and control the operation of each equipment according to the collected data. Finally realized the purpose of producing dilute sulfuric acid.

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23

Priedniece, Vivita, Vladimirs Kirsanovs, Toms Prodanuks, Ivars Veidenbergs, and Dagnija Blumberga. "Treatment of Particulate Matter Pollution: People’s Attitude and Readiness to Act." Environmental and Climate Technologies 24, no. 2 (September 1, 2020): 231–46. http://dx.doi.org/10.2478/rtuect-2020-0069.

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AbstractThe paper displays results of the questionnaire called “Particulate matter pollution in air”, which serves as a tool to determine level of public awareness of the health risks related to pollution from small capacity heating equipment in households. Barriers for installation of the innovative flue gas treatment technology called a fog unit in households and possible mechanisms to decrease or prevent these barriers were defined. The first part of the questionnaire included overall information about participants: age, gender, education level, place of residence, activities to protect the environment and motives behind performing these activities. The remaining questions were divided in four groups: “Environmental views”, “Knowledge on air pollution”, “Willingness to pay”, “Choice of flue gas treatment technologies”. The results of questionnaire correspond with raised problem situations. Over 80 % of respondents lack information on pollution and possible consequences deriving from it, and on potential solutions to prevent pollution. Residents of households are willing to pay for installation of flue gas treatment equipment (capital investments).

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24

Paulauskas, Jõgi, Striūgas, Martuzevičius, Erme, Raud, and Tichonovas. "Application of Non-Thermal Plasma for NOx Reduction in the Flue Gases." Energies 12, no. 20 (October 17, 2019): 3955. http://dx.doi.org/10.3390/en12203955.

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Over the years, ever more stringent requirements on the pollutant emissions, especially NOX, from combustion systems burning natural gas are introduced by the European Union (EU). Among all NOX reduction methods, the flue gas treatment by plasma is widely applied and could be used for both small scale and domestic combustion systems. However, the removal efficiency depends on concentrations of oxygen, water vapor, traces of hydrocarbons, and nitrogen oxides in flue gas. In order to analyze the application of the NOX reduction for small-scale or domestic combustion systems, experiments of NOX reduction by non-thermal plasma from real flue gases originating from premixed methane combustion at different equivalence ratio (ER) values were performed. It was determined that the residual oxygen in flue gas plays an important role for improvement of NO to NO2 oxidation efficiency when O2 concentrations are equal to or higher than 6%. The power consumption for the plasma oxidation constituted approximately 1% of the burner power. In the case of ozone treatment, the addition of O3 to flue gas showed even more promising results as NO formed during combustion was fully oxidized to NO2 at all ER values.

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Han, Juntao, Guofeng Lou, Sizong Zhang, Zhi Wen, Xunliang Liu, and Jiada Liu. "The Effects of Coke Parameters and Circulating Flue Gas Characteristics on NOx Emission during Flue Gas Recirculation Sintering Process." Energies 12, no. 20 (October 10, 2019): 3828. http://dx.doi.org/10.3390/en12203828.

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The new process of flue gas recirculation, which reduces coke consumption and reducing NOx emissions, is now extensively used. Compared with traditional sintering, the characteristics of circulating flue gas and coke parameters significantly affect the combustion atmosphere and coke combustion efficiency. Based on the actual complex process of sintering machine, this study proposes a relatively comprehensive one-dimensional, unsteady mathematical model for flue gas recirculation research. The model encompasses NOx pollutant generation and reduction, as well as SO2 generation and adsorption. We focus on the effects of cyclic flue gas characteristics on the sintering-bed temperature and NOx emissions, which are rarely studied, and provide a theoretical basis for NOx emission reduction. Simulation results show that during sintering, the fuel NOx is reduced by 50% and 10% when passing through the surface of coke particles and CO, respectively. During flue gas recirculation sintering, the increase in circulating gas O2 content, temperature, and supply-gas volume cause increased combustion efficiency of coke, reducing atmosphere, and NOx content in the circulating area; the temperature of the material layer also increases significantly and the sintering endpoint advances. During cyclic sintering, the small coke size and increased coke content increase the char-N release rate while promoting sufficient contact of NOx with the coke surface. Consequently, the NOx reduction rate increases. Compared with the conventional sintering, the designed flue gas recirculation condition saves 3.75% of coke consumption, i.e., for 1.2 kg of solid fuel per ton of sinter, the amount of flue gas treatment is reduced by 21.64% and NOx emissions is reduced by 23.59%. Moreover, without changing the existing sintering equipment, sintering capacity increases by about 5.56%.

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Hu, Zhongjie, Heng Zhou, Weili Zhang, and Shengli Wu. "The Influence of the Porous Structure of Activated Coke for the Treatment of Gases from Coal Combustion on Its Mechanical Strength." Processes 8, no. 8 (July 28, 2020): 900. http://dx.doi.org/10.3390/pr8080900.

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This study investigated influences of the open/close states of pores and porosity distribution of activated coke on the mechanical strength of common activated coke for the purification of coal-fired flue gas by analyzing pore structure, abrasive resistance, and compression strengths of 9 types of desulfurization and denitration activated cokes. Research conclusions are conducive to disclosing the influences of porosity characteristics of activated coke for the purification of coal-fired flue gas on mechanical strength, decreasing the physical consumption of activated coke in the recycling of flue gas purification systems, and lowering the purification cost of coal-fired flue gas. According to research results, pores in the ranges of 0–2 nm and 2–500 nm of activated coke are further developed after recycling using the coal-fired flue gas purification system, and the average compression strength of activated coke is about 70% of the added fresh activated coke. However, the abrasive resistance of the recycled activated coke which has a smooth surface is higher than that of the fresh activated coke. Open pores are the main cause of reduced compression strength of activated coke. Open pores in the range of 2–500 nm can destroy the compression strength of activated coke the most. The open/close states of pores cause no significant impacts on the abrasive resistance of activated coke, but pores with diameters ranging from 0–2 nm can destroy the abrasive resistance of activated coke most significantly.

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Leng, Ting Shuang, Bao Rui Liang, Cun Yi Song, Zhen Song Tong, and Hong Qiang Liao. "Research on the Treatment of High Concentration Dust with Bag Filter." Applied Mechanics and Materials 448-453 (October 2013): 1369–77. http://dx.doi.org/10.4028/www.scientific.net/amm.448-453.1369.

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Related trials in the treatment of high concentration desulfurization dust were operated in order to optimize the parameters of bag filter, established a set of data fit to semi-dry flue gas desulfurization dust, processed simulated flue gas with a concentration of SO2 600mg/m3, adopt filtration velocity between 0.63 ~ 0.98m/min, injection pressure between 0.3 ~ 0.4MPa, injection time between 200 ~ 300s. The experiments proved that the selection of the filtration velocity about the treatment of high concentrations desulfurization dust should be distinguished from the general cases. In addition, pulse pressure also should not be too high.

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Pasiecznik, Iwona, and Włodzimierz Szczepaniak. "Chemical treatment of wastewater from flue gas desulphurisation." E3S Web of Conferences 22 (2017): 00133. http://dx.doi.org/10.1051/e3sconf/20172200133.

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Chmielewski, Andrzej G., Edward Iller, Zbigniew Zimek, and Janusz Licki. "Pilot plant for electron beam flue gas treatment." International Journal of Radiation Applications and Instrumentation. Part C. Radiation Physics and Chemistry 40, no. 4 (October 1992): 321–25. http://dx.doi.org/10.1016/1359-0197(92)90088-w.

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30

Zimek, Zbigniew. "High power electron accelerators for flue gas treatment." Radiation Physics and Chemistry 45, no. 6 (June 1995): 1013–15. http://dx.doi.org/10.1016/0969-806x(94)00154-c.

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31

Ni, Tingting, Yunzhong Wang, Chenghui Huang, Dongsheng Jiang, and Qingyu Liu. "Limestone-Gypsum Wet Flue Gas Desulfurization Wastewater Treatment." IOP Conference Series: Earth and Environmental Science 651 (February 10, 2021): 042034. http://dx.doi.org/10.1088/1755-1315/651/4/042034.

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32

Guruvaiah, Mahendraperumal, and Keesoo Lee. "Effect of Flue Gas on Microalgae Population and Study the Heavy Metals Accumulation in Biomass from Power Plant System." International Journal of Applied Sciences and Biotechnology 2, no. 2 (June 25, 2014): 114–20. http://dx.doi.org/10.3126/ijasbt.v2i2.10247.

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Microalgae have high photosynthetic efficiency that can fix CO2 from the flue gas directly without any upstream CO2 separation, and concomitantly produce biomass for biofuel applications. These gases, both untreated and treated into current discharge standards, contain CO2, N2, H2O, O2, NOx, SOx, CxHy, CO, particulate matter, halogen acids and heavy metals. Microalgae population studies were conducted in a batch mode experiments at Power plant site of Chamois, Missouri. The experiments were conducted in different period (June to December 2011) of time. This study evaluated the effect of several heavy metals that are present in flue gases on the algae, focusing on the growth and accumulation of lipids in the algae that can be converted to biodiesel. The genus Scenedesmus presented the greatest richness of species and number of counted individuals in the flue gas ponds compare than non flue gas treatment ponds. Among the diatomaceae the genus Navicula sp, Nitizchia sp and Synedra sp. presented the next subdominant richness in the ponds. The last results of counted green algae Ulothrix sp and Coelastrum sp were least number of cells reported in these ponds. The heavy metal-contaminated in flue gas and also enter into the microalgae biomass population. Comparative studies were carried out by flue gas and control system of open ponds. Control system of microalgae population was represented in less amount of heavy metals compare than flue gas ponds.DOI: http://dx.doi.org/10.3126/ijasbt.v2i2.10247 Int J Appl Sci Biotechnol, Vol. 2(2): 114-120

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Priedniece, Vivita, Elvis Kalnins, Vladimirs Kirsanovs, Mikelis Dzikevics, Dagnija Blumberga, and Ivars Veidenbergs. "Sprayed Water Flowrate, Temperature and Drop Size Effects on Small Capacity Flue Gas Condenser’s Performance." Environmental and Climate Technologies 23, no. 3 (December 1, 2019): 333–46. http://dx.doi.org/10.2478/rtuect-2019-0099.

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Abstract One of the main pollution types is air pollution, which has a significant impact on the surrounding environment and on living beings. Major source of air pollution is combustion processes. There are many flue gas treatment technologies around the world. In this paper a new, innovative flue gas treatment technology – fog unit – is introduced. The goal of the fog unit is to treat flue gases that are emitted from households. In the European Union, including Latvia, at the beginning of 2020, a directive will come into effect that will set limits for emissions and the effectiveness for incinerators in households. The main focus of this study was to determine the most optimal operating mode for the fog unit by changing different operating parameters: sprayed water temperature, sprayed water flowrate and types of nozzles (drop diameters). Results show that the most optimal operating mode in terms of flue gas treatment efficiency and recovered energy is at water temperature: 20 °C, sprayed water flowrate: 250 l/h and nozzle: MPL1.12 M. However, electrical consumption of water circulation pump leaves negative effect on this operating mode.

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Meng, Hua. "Deep desulfurization of sintering flue gas in iron and steel works based on low-temperature oxidation." Open Chemistry 18, no. 1 (November 24, 2020): 1370–80. http://dx.doi.org/10.1515/chem-2020-0169.

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AbstractThe deep desulfurization method of sintering flue gas based on the low-temperature oxidation method is studied. Based on the analysis of the main principle of deep desulfurization of sintering flue gas, a deep desulfurization system of sintering flue gas is constructed, which is composed of an absorption washing unit and a washing solution treatment unit. Sodium hydroxide solution is used as the desulfurizing absorbent to mix with the sintering flue gas entering the reaction tower. Sulfur dioxide in the sintering flue gas reacts with sodium hydroxide to generate sodium sulfite, and sodium sulfite is oxidized to produce sodium sulfate; ozone is produced by ozone generator, nitrogen oxide compounds are oxidized by ozone to generate oxyacid, which is easy to be removed by sodium hydroxide washing solution, and the detergent is the same as that used to remove sulfur dioxide and dust. The experimental results show that the highest desulfurization rate and denitrification rate of the proposed method are 90% and over 22%, and the reaction efficiency and economy are significantly better than that of the comparative method, which shows that the method is reasonable and effective.

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Huy, Nguyen Nhat, and Bích Thảo Nguyễn Thị. "Thermal oxidation of carbon monoxide in air using various self-prepared catalysts." Science & Technology Development Journal - Engineering and Technology 2, SI2 (July 7, 2020): First. http://dx.doi.org/10.32508/stdjet.v2isi2.469.

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Carbon monoxide (CO) is a very toxic pollutant emitted from wood fired boiler, which is widely used in small and medium enterprises in Vietnam. The treatment of CO containing flue gas faces many difficulties due to the inert property of CO and cannot be removed by traditional adsorption and absorption methods and one of the effective CO treatments is catalytic oxidation. Therefore, we aimed to prepare various catalysts on different carriers for treatment of CO in flue gas, including γ-Al2O3-based metal oxides (Co3O4/Al2O3, Cr2O3/Al2O3, and CuO/Al2O3), CuO–MnOx/OMS-2, and CuO-MnOx/zeolite. The CO removal tests were conducted in a continuous fixed bed reactor in laboratory scale with temperature range of 50 – 550 oC. The characteristics of catalytic materials were then determined by various methods such as Brunauer-Emmett-Teller measurement, X-ray diffraction, energy-dispersive X-ray spectroscopy, Fourier transform infrared spectroscopy, scanning electron microscopy, and thermogravimetric analysis. Results showed that CuO-MnOx/OMS-2 was the best catalyst with high removal efficiency of 98.41% at reactor temperature of 250 oC while gas outlet temperature of < 50 oC, proving the suitability of this material for practical treatment of CO in flue gas. The reaction follows Mars-Van-Krevelen mechanism with the presence of Cu2+-O2--Mn4+ ↔ Cu+-o-Mn3+ + O2 redox in the structure of the material. Moreover, the effect of environmental factors such as flow rate, inlet CO concentration, and catalysts amount on the CO removal efficiency were investigated and noted for designing and operation purposes. Concentration of outlet CO met well QCVN 19: 2009/BTNMT - National technical regulation on industrial emissions for dust and inorganic substances. Therefore, CuO-MnOx/OMS-2 catalyst material could be a potential catalyst for treatment of CO in flue gas of boiler.

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OGAWA, Tadahiko. "Flue Gas Purification for MSW Incinerations. Situation and Problems of Flue Gas Treatment Facilities of MSW Incinerators." Waste Management Research 2, no. 4 (1991): 298–305. http://dx.doi.org/10.3985/wmr.2.298.

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Gingerich, Daniel B., Eric Grol, and Meagan S. Mauter. "Fundamental challenges and engineering opportunities in flue gas desulfurization wastewater treatment at coal fired power plants." Environmental Science: Water Research & Technology 4, no. 7 (2018): 909–25. http://dx.doi.org/10.1039/c8ew00264a.

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Pakzadeh, Behrang, Jay Renew, and Jay Wos. "Coal-Fired Power Plant Flue Gas Desulfurization Wastewater Treatment." Proceedings of the Water Environment Federation 2014, no. 20 (October 1, 2014): 2417–28. http://dx.doi.org/10.2175/193864714815929571.

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Ikegaki, Takuro, Satoshi Seino, Yasuyuki Oda, Takuya Matsuda, Go Imada, Weihua Jiang, and Kiyoshi Yatsui. "Flue Gas Treatment by Intense Pulsed Relativistic Electron Beam." Japanese Journal of Applied Physics 40, Part 1, No. 2B (February 28, 2001): 1104–7. http://dx.doi.org/10.1143/jjap.40.1104.

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Chmielewski, Andrzej G., Edward Iller, Zbigniew Zimek, Micna Romanowski, and Kazimierz Koperski. "Industrial demonstration plant for electron beam flue gas treatment." Radiation Physics and Chemistry 46, no. 4-6 (September 1995): 1063–66. http://dx.doi.org/10.1016/0969-806x(95)00321-n.

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Chmielewski, A. G., B. Tymiński, J. Licki, E. Iller, Z. Zimek, and B. Radzio. "Pilot plant for flue gas treatment-continuous operation tests." Radiation Physics and Chemistry 46, no. 4-6 (September 1995): 1067–70. http://dx.doi.org/10.1016/0969-806x(95)00322-o.

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Li, Hong, and Yong Li Zhang. "Research on Process and Pollution of Atmospheric and Vacuum Distillation." Advanced Materials Research 311-313 (August 2011): 1573–76. http://dx.doi.org/10.4028/www.scientific.net/amr.311-313.1573.

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Key words：Atmospheric and vacuum; distillation; process; pollution Abstract：The atmospheric and vacuum distillation unit was analysed on the device's size, composition, technical route and process. The results show that the flue gas produced by atmospheric and vacuum furnace is the main emission source, and the main pollutants in the flue gas are SO2, NOX and soot. The wastewater pollution is mainly electric desalting salt water, and it was treated in saline wastewater treatment plant in the factory.

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Guo, Huiqian, Jing Wang, Jiangbo Wu, and Xiaoze Du. "Study on Spray Evaporation Treatment of Desulfurization Wastewater." Coatings 11, no. 4 (April 4, 2021): 418. http://dx.doi.org/10.3390/coatings11040418.

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Limestone-gypsum wet flue gas desulfurization (WFGD) often produces a certain amount of wastewater with complex water quality and heavy metal pollution which should be treated properly before release. Spaying the desulfurization wastewater into flue duct and using exhausted flue gas heat for evaporation is a promising and economical technology for achieving zero wastewater discharge in thermal power plant. To enable a more in-depth understanding on evaporation of FGD wastewater spray, a visual wind tunnel test rig based on the atomized droplet laser measuring system was built to reveal the impact factors on droplet thermal-fluid behavior. The dominant impact factors such as compressed air pressure and flow rate in air-blast spray nozzle, hot air temperature and velocity in the evaporation tunnel were analyzed to discuss the droplet size distribution and evaporation performance through alternating operate condition. A discrete mathematical model that combines both Eulerian and Lagrangian framework was established to validate the experiment result. It is concluded that introducing high pressure compressed air into the nozzle can contribute to the dispersion of droplets and enhance the evaporation rate. Proper flow rate in spray nozzle is required to avoid incomplete droplets evaporation. Air temperature and velocity in the evaporation tunnel apply positive impact on droplet size distribution and evaporation performance. Numerical simulation results of both dominant factors impact on evaporation behavior and total evaporation rate showed consistency with the experimental outcome.

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Saptaaji, Rany. "PENENTUAN KEDALAMAN PENETRASI BERKAS ELEKTRON 800 keV DALAM GAS BUANG PLTU PADA SISTEM PENGOLAHAN GAS BUANG MENGGUNAKAN MESIN BERKAS ELEKTRON." Jurnal Forum Nuklir 2, no. 1 (May 1, 2008): 51. http://dx.doi.org/10.17146/jfn.2008.2.1.3283.

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PENENTUAN KEDALAMAN PENETRASI BERKAS ELEKTRON 800 keV DALAM GAS BUANG PLTU PADA SISTEM PENGOLAHAN GAS BUANG MENGGUNAKAN MESIN BERKAS ELEKTRON. Dalam tulisan ini disajikan hasil perhitungan kedalaman penetrasi berkas elektron 800 keV dalam bahan gas buang (flue gas) dari PLTU berbahan bakar batu bara. Proses Electron Beam for Flue Gas Treatment (EB-FGT) adalah proses pengolahan kering gas buang menggunakan berkas elektron yang secara simultan dapat mereduksi SO2 dan NOx. Iradiasi gas buang menghasilkan radikal- radikal aktif dan bereaksi dengan SO2 dan NOx membentuk asam sulfat dan asam nitrat. Dalam proses pengolahan ini dibutuhkan bejana proses yang berfungsi sebagai tempat/wadah terjadinya reaksi antara gas buang dengan berkas elektron. Untuk menentukan dimensi bejana proses perlu ditentukan/dihitung kedalaman penetrasi berkas elektron pada gas tersebut. Secara perhitungan diperoleh kedalaman penetrasi optimum berkas elektron 800 keV kedalam gas buang adalah 188,67 cm.

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Xu, Zhicheng, Yuran Li, Huimin Shi, Yuting Lin, Yan Wang, Qiang Wang, and Tingyu Zhu. "Application Prospect of K Used for Catalytic Removal of NOx, COx, and VOCs from Industrial Flue Gas: A Review." Catalysts 11, no. 4 (March 25, 2021): 419. http://dx.doi.org/10.3390/catal11040419.

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NOx, COx, and volatile organic compounds (VOCs) widely exist in motor vehicle exhaust, coke oven flue gas, sintering flue gas, and pelletizing flue gas. Potassium species have an excellent promotion effect on various catalytic reactions for the treatment of these pollutants. This work reviews the promotion effects of potassium species on the reaction processes, including adsorption, desorption, the pathway and selectivity of reaction, recovery of active center, and effects on the properties of catalysts, including basicity, electron donor characteristics, redox property, active center, stability, and strong metal-to support interaction. The suggestions about how to improve the promotion effects of potassium species in various catalytic reactions are put forward, which involve controlling carriers, content, preparation methods and reaction conditions. The promotion effects of different alkali metals are also compared. The article number about commonly used active metals and promotion ways are also analyzed by bibliometric on NOx, COx, and VOCs. The promotion mechanism of potassium species on various reactions is similar; therefore, the application prospect of potassium species for the coupling control of multi-pollutants in industrial flue gas at low-temperature is described.

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Oanh, Doan Thi, Quach Thi Hoang Yen, Nguyen Thi Toan, Nguyen Quoc Trung, Tran Quế Chi, Nguyen Hong Chuyen, Tran Thi Minh Nguyet, Bui Thi Kim Anh, and Dang Dinh Kim. "IMPROVEMENT OF CO2 PURIFYING SYSTEM BY PHOTOCATALYST FOR APPLICATION IN MICROALGAE CULTURE TECHNOLOGY." Vietnam Journal of Science and Technology 54, no. 1 (February 20, 2016): 92. http://dx.doi.org/10.15625/0866-708x/54/1/6128.

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By reactive grinding method Vanadium-doped rutile TiO2 nanoparticle material was obtained with an average particle size of 20‐40nm, the Brunauer–Emmet–Teller (BET) specific surface area about 20 m2g−1 and it absorbed strongly in the UV region and increased at the visible wavelength of 430 – 570 nm. This study focused on the improvement of exhaust gas treatment from coal-fired flue gas of the traditional adsorption-catalysis system (Modular System for Treating Flue Gas - MSTFG) by using the V2O5/TiO2 Rutile as photocatalyst. The results showed that integrating both catalytic systems mentioned above increased the gas treatment efficiency: CO from 77 % to over 98 %, NOx from 50 % to 93 %, SO2 was absent as opposed to the input gas component. Also it showed that V2O5/TiO2 Rutile integrated with MSTFG has got high efficiency of CO treatment, also secured the high obtained CO2 concentration as a valuable carbon source for microagal mass culture as well as saving energy and simplifying devices.

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Oischinger, Jürgen, Martin Meiller, Robert Daschner, Andreas Hornung, and Ragnar Warnecke. "Fate of nano titanium dioxide during combustion of engineered nanomaterial-containing waste in a municipal solid waste incineration plant." Waste Management & Research 37, no. 10 (July 26, 2019): 1033–42. http://dx.doi.org/10.1177/0734242x19862603.

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The market for products containing engineered nanomaterial (ENM) is constantly expanding. At the end of their lifecycle, a significant fraction of the products will be disposed as ENM-containing waste in thermal treatment plants. Up to now there are still uncertainties on the fate and behaviour of ENM during waste incineration. In our investigations, nano titanium dioxide (nTiO2) was selected as an example for ENM, because of its high amount in consumer products and its relevance to the ENM-containing waste stream. Two test series were conducted at the municipal solid waste incineration plant “Gemeinschaftskraftwerk Schweinfurt”. For each test series, background concentrations of titanium were measured first. Samples of bottom ash, bottom ash extractor water, fly ash (boiler ash, cyclone ash), flue gas cleaning products (spray absorber ash, fabric filter ash) and washing water from the wet scrubber were taken in order to determine the fate of nTiO2. The flue gas was sampled at three points: after boiler, after cyclone and before stack. The experiments showed that most of the used reference material was located in the solid residues (i.e. bottom ash) while a smaller part was detected in the products of the flue gas cleaning. In the purified flue gas before the stack, the concentration was negligible. The flue gas cleaning system at the Gemeinschaftskraftwerk Schweinfurt complies with the requirements of the best available techniques and the results cannot be transferred to plants with lower standards.

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Fu, Yu Yun, Jian Lei Zhou, and Jian Xiao. "The Treatment and Recycling of FGD Waste." Advanced Materials Research 955-959 (June 2014): 2901–5. http://dx.doi.org/10.4028/www.scientific.net/amr.955-959.2901.

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At present, wet lime - gypsum flue gas desulfurization (FGD) technology is very common in the field of gas desulfurization technology. In addition, wet carbide slag - gypsum FGD and Magnesia FGD are also used. In the process of eliminating SO2, with the first two technology, the byproducts of desulfurization wastewater and gypsum will be produced; With Magnesia FGD, the byproducts of magnesium sulfite and magnesium will be produced. The way to utilize desulfurization wastewater, gypsum and magnesium comprehensively and to achieve circular economy is worth exploring.

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Liu, Zhi Jiao, and Yun Lng Yang. "Coking Wastewater Physico-Chemical Treatment Technology Evolvement Review." Advanced Materials Research 864-867 (December 2013): 88–95. http://dx.doi.org/10.4028/www.scientific.net/amr.864-867.88.

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Coal coking wastewater is generated from coking, coal gas purification and coking product recovery process, its composition is complex and difficult to degrade. By introducing the coking wastewater treatment research and application, such as adsorption,coagulation and sedimentation, flue gas treatment and other physical methods, as well advanced oxidation, wet oxidation, Fenton reagent method, photocatalytic oxidation, ultrasonic oxidation, ozone oxidation method, electrochemical oxidation, supercritical water oxidation, incineration and plasma technology, this paper puts forward the trend of coking wastewater treatment technology.

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Semjonova, I., and E. Teirumnieks. "A Review of Methods for Reduction of Polycyclic Aromatic Hydrocarbons from Waste Water and Flue Gases." Environment. Technology. Resources. Proceedings of the International Scientific and Practical Conference 1 (August 6, 2015): 57. http://dx.doi.org/10.17770/etr2013vol1.825.

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This review describes methods which can be used for the reduction of the polycyclic aromatic hydrocarbon (PAH) emissions from wastewater and flue gases including principles of operation of the methods and studies of their effectiveness. There are discussed both methods, which nowadays are already used industrially, and their improvement opportunities as well as recent technological trends in this field. The methods have been classified into two main categories: flue gas treatment and wastewater treatment.

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