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Journal articles on the topic 'Desulfurization'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

Su, Yizhen, Jiangfeng Sheng, Aiqing Tang, and Linhua Zhu. "One Pot Synthesis of Phosphomolybdenate Based Hybrids for Efficient Oxidative Desulfurization." Science of Advanced Materials 16, no. 8 (2024): 871–78. http://dx.doi.org/10.1166/sam.2024.4693.

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With increasing stringent standard of sulfur content in fuels, there is a growing need for high-efficiency deep desulfurization to meet ecological and environmental demands. Herein, a series of heteropolyacid catalysts with phosphomolybdic acid base melamine (MHPMo-n) were synthesized by one-pot method and applied to oxidative desulfurization. Further, the optimum conditions for desulfurizations could be explored, which the desulfurization rate of the catalyst could reach 100% within 60 min under the conditions of m(catalyst)= 0.01 g, T = 40 °C, O/S = 3. Furthermore, the catalyst demonstrated

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2

Hu, Yonghong. "Research on Desulfurization Technology of Low Sulfur Marine Fuel Oil." Academic Journal of Science and Technology 2, no. 3 (2022): 54–55. http://dx.doi.org/10.54097/ajst.v2i3.1490.

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With the implementation of the International Maritime Organization (IMO) marine fuel oil sulfur restriction policy in 2020, the desulfurization technology of marine residual fuel oil has received more attention from the industry. Heavy feedstock is the main component of marine residual fuel oil, and this paper introduces some of the heavy feedstock desulfurization technologies, mainly hydrodesulfurization, oxidation desulfurization, reactive metal desulfurization, adsorption desulfurization, biological desulfurization and extraction desulfurization. The respective advantages, disadvantages and

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3

Wang, Peng, Rui Wang, and Vitaly Edwardovich Matulis. "Ionic Liquids as Green and Efficient Desulfurization Media Aiming at Clean Fuel." International Journal of Environmental Research and Public Health 21, no. 7 (2024): 914. http://dx.doi.org/10.3390/ijerph21070914.

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With increasingly stringent emission limits on sulfur and sulfur-containing substances, the reduction and removal of sulfur compounds from fuels has become an urgent task. Emissions of sulfur-containing compounds pose a significant threat to the environment and human health. Ionic liquids (ILs) have attracted much attention in recent years as green solvents and functional materials, and their unique properties make them useful alternatives to conventional desulfurization organic solvents. This paper reviews the advantages and disadvantages of traditional desulfurization technologies such as hy

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4

Cui, Guang Wen, Ming Yang Sun, Yan Jun Li, and Qi Kai Guo. "A Brief Analysis of Coal Desulfurization before Combustion." Advanced Materials Research 512-515 (May 2012): 2477–81. http://dx.doi.org/10.4028/www.scientific.net/amr.512-515.2477.

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The paper mainly introduces the desulfurization technology before coal combustion and gives a brief analysis of principles , advantages and disadvantages of the three current coal desulfurization technologies: physical desulfurization, chemical desulfurization and biological desulfurization . Finally, this paper puts forward some views on the development trend of coal desulfurization technology.

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5

Hu, Ye, Nana Li, Meng Wang, et al. "Overview of Research Status and Development Trends in Diesel Desulfurization Technology." Catalysts 15, no. 3 (2025): 251. https://doi.org/10.3390/catal15030251.

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Diesel desulfurization is a critical process for reducing the sulfur content in diesel fuel and mitigating the negative impact of sulfur-containing exhaust gases for the environment. As a cornerstone of the refining industry, desulfurization has garnered significant attention for producing cleaner fuels and reducing pollution. Currently, the primary desulfurization technologies include hydrodesulfurization (HDS), oxidative desulfurization (ODS), biodesulfurization (BDS), adsorptive desulfurization (ADS), and electrochemical desulfurization (ECDS). With the development of global economic compet

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6

Sikkander, A. Mohamed. "Bio desulfurization of Petroleum." Petroleum and Chemical Industry International 5, no. 3 (2022): 153–55. https://doi.org/10.33140/pcii.05.03.03.

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Bio desulfurization involves the use of microorganisms or enzymes as catalysts to remove organic sulfur composites from petroleum distillates. Microorganisms widely remove organic sulfur tittles, without affecting the hydrocarbon half of the organo- sulfur emulsion. The colorful microorganisms that are able of removing sulfur from coal, crude oil painting, and other petroleum fragments are described. This paper also discusses the colorful biotechnological approaches espoused and process parameters optimized for bettered bio desulfurization. Eventually, grounded on the gaps in knowledge, unborn

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7

Yang, Biwen, Bo Song, Liang Chen, et al. "Influence of Top Slag Containing TiO2 and VOx on Hot Metal Pre-Desulfurization." Metals 14, no. 8 (2024): 910. http://dx.doi.org/10.3390/met14080910.

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The desulfurization capacity of top slag in the process of pre-desulfurization of hot metal containing vanadium and titanium was researched. The top slag system of CaO-SiO2-MgO-Al2O3-TiO2-VOx that was formed by blast furnace slag and a CaO desulfurization agent reduced the sulfur in hot metal from 0.08 wt.% to 0.02 wt.%. It was found that the resulfurization of the slag happened in the later periods of the desulfurization process. The vanadium–titanium oxides were both acidic in the desulfurization slag. TiO2 and VOx reacted with the basic oxides to form CaTiO3 and MgV2O4 at 1623 K, which redu

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8

Li, Jian Ming, Xiao Long Zhang, Zheng Qiu Qiu, Jian Shan Wang, and Yan Li Ren. "Influence on Desulfurization Capacity of Flue Gas Desulfurization Solution." Advanced Materials Research 884-885 (January 2014): 78–81. http://dx.doi.org/10.4028/www.scientific.net/amr.884-885.78.

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In view of troubles during the operation of desulfurization device for Pangang 260 m2 sintering machine, influence on absorption/desorption capacity of the desulfurization solution was investigated, including concentrations of Na+, SO42- and desulfurization solution. The results showed that it was beneficial for sulfur dioxide (SO2) absorption and there was no significant effect on desorption efficiency, when Na+ and SO42- concentration was lower than 15 g/L and 67 g/L, respectively. When the concentration of desulfurization solution reached 113 g/L, Na+ and SO42-concentrations had no signific

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9

Sun, Ming Zhu, Bing Zhang, Yong Hong Wu, Jing Zhu, and De Zhi Zhao. "The Effect of Ultrasound on Oxidation Desulfurization of Diesel." Applied Mechanics and Materials 470 (December 2013): 150–53. http://dx.doi.org/10.4028/www.scientific.net/amm.470.150.

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Oxidation desulfurization, particularly to the deep oxidation desulfurization, is one of the most effective routs to meet the environmental requirements prior to the application of diesel. In this article, the author developed an improved way of oxidation desulfurization for diesel by the aid of ultrasound, which opens up a new technology. As the experiment results show that in comparison with traditional oxidation desulfurization, ultrasound-aided oxidation desulfurization for diesel achieves better desulfurization result, along with the reduction of oxidant-oil ratio, reaction temperature an

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10

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

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11

Liu, Hong Lei, Zhi Qi Wang, and Lei Zhang. "Test and Application of Desulfurization Catalyst." Advanced Materials Research 781-784 (September 2013): 2577–81. http://dx.doi.org/10.4028/www.scientific.net/amr.781-784.2577.

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Explains the principle and reaction mechanism of desulfurization catalyst. Introduces the test applying desulfurization catalyst in WFGD (wet flue gas desulfurization) system of 320MW generating units operating in thermal power plant. Desulfurization efficiency is improved significantly by using desulfurization catalyst of 100 μ g/g to 600 μ g/g concentrations. To save electricity, stopping the top level slurry pump is the priority.

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12

Chen, Yan, Min Cao, and Chunyan Ma. "Review of Coal-Fired Electrification and Magnetic Separation Desulfurization Technology." Applied Sciences 9, no. 6 (2019): 1158. http://dx.doi.org/10.3390/app9061158.

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This paper briefly introduces various methods of coal desulfurization (physical desulphurization, chemical desulfurization, biological desulfurization, etc.) and analyzes some problems existing in each method. The principle and research process of friction electrostatic separation technology and high gradient magnetic separation technology in pre-combustion desulfurization technology are emphatically introduced, and the development trend of coal-fired desulfurization technology in the future is prospected.

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13

Li, Xueke, Yan Liu, and Tingan Zhang. "Comparison of the Effects of Ultrasonic and Ball Milling on Red Mud Desulfurization." Metals 12, no. 11 (2022): 1887. http://dx.doi.org/10.3390/met12111887.

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Red mud desulfurization is an environmentally friendly desulfurization technology. After desulfurization, the acidity of red mud slurry continues to be neutralized for processing new red mud, and no waste acid is generated. At present, there is a lack of research on desulfurization intensification in external fields, etc. To further enhance red mud desulfurization, this paper used an SO2 detector, X-ray fluorescence spectrometer (XRF), and scanning electron microscope (SEM) to compare and analyze red mud desulfurization under the action of ball mill and ultrasonic external fields. In this stud

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14

Wen, Xiao Dong, Guo Song Li, Jiu Yong Song, and Zhi Nan Gao. "Effect of Desulfurization Ash with Different Desulfurization Temperature and Gypsum Content on the Fluidity, Strength and Rebar Protection of Cement Based Materials." Advanced Materials Research 168-170 (December 2010): 940–44. http://dx.doi.org/10.4028/www.scientific.net/amr.168-170.940.

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Depending on the desulfurization reaction temperature，it can be divided into fly ash generated at high-temperature furnace zone and at low-temperature flue gas zone. For simulating those two kinds of desulfurization ash, the ordinary fly ash mixed with different weight percentage of CaSO4•2H2O is divided into 2 groups, the first group is followed by calcining at 900 , another drying at 100 . And then by the experiment of workability, strength and steel rebar protection, the effect of morphology and amount of gypsum on material properties and the pretreatment method are studied. The results sho

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15

Zhang, Yu Zhu, and Ying Xu. "Study of Dual-Alkali on Sintering Flue Gas Desulfurization." Advanced Materials Research 393-395 (November 2011): 304–7. http://dx.doi.org/10.4028/www.scientific.net/amr.393-395.304.

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Combining with the characteristics and control methods of sintering flue gas, several common methods for flue gas desulfurization(FGD) and development trend of desulfurization technology were described in this paper. According to characteristics of sintering flue gas and selection principles, dual-alkali method was used in the FGD. Desulfurization process, basic principle and characteristics of the process were studied in detail. By contrast test, the effect of concentration of the desulfurization, flue gas flow and surface active agent on the desulfurization efficiency was investigated in det

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16

Wang, Baohua, Mingbo Zhang, Rong Zhu, and Shengtao Qiu. "Study of CO2injection on the desulfurization of low-titanium slag." Metallurgical Research & Technology 116, no. 4 (2019): 417. http://dx.doi.org/10.1051/metal/2018120.

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A new idea that the low-titanium slag (LTS) used in the steelmaking process after CO2injection desulfurization is proposed in this paper. The CO2injection process mainly involves the grinding of low-titanium slag, mixing of slag and water, CO2injection, filtration, and then obtains the low sulfur and low titanium slag. The effects of cooling rates (water cooling, air cooling, crucible cooling, and furnace cooling) and CO2injection on the desulfurization of LTS were studied by both experimental and thermodynamic calculations. The results showed that sulfite and sulfate ions couldn’t be removed

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17

Zhou, Jian An, Sheng Jun Zhong, Jun Xiang Dang, and Xu Li. "Experimental Investigation of Sintering Flue Gas Desulfurization with Steel Slag Using Dry CFB Method." Applied Mechanics and Materials 71-78 (July 2011): 2547–50. http://dx.doi.org/10.4028/www.scientific.net/amm.71-78.2547.

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SO2 Emission of sintering flue gas accounts for more than 70% of total SO2 emission of steel industry. The purpose of this paper was to use steel slag for desulfurization of sintering flue gas. Based on traditional circulating fluidized beds (CFB) for flue gas desulfurization (FGD), a new dry digestion CFB-FGD process was developed. The new process eliminated the traditional digestion procedure, and the functions of the reactor include preliminary dust collection, digestion and desulfurization. An pilot CFB installation with maximum flow rate of 8000 Nm3/h for flue gas desulfurization was esta

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18

Zhou, Ji Hong, Yu Lian, and Bin Wang. "Discussion about Desulfurization Technology and Management." Key Engineering Materials 439-440 (June 2010): 1528–32. http://dx.doi.org/10.4028/www.scientific.net/kem.439-440.1528.

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Hydrogen sulfide is a kind of poisonous and harmful gas. There are a lot of desulfurization methods. The presents condition, features and application of desulfurization technology are introduced in this paper. It also point out that we should pay more attention to the desulfurization technology which will be introduced. Meanwhile several kinds of desulfurization technology and management methods are presented especially. The merit and fault of all kinds of desulfurization methods are proposed in this paper too.

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19

Liao, Yong Jin, Ming Zhai, Fang Yong Li, Wei Qiang Shi, Yu Zhang, and Peng Dong. "Experimental Study on Desulfurization of Fly Ash Slurry." Applied Mechanics and Materials 148-149 (December 2011): 487–90. http://dx.doi.org/10.4028/www.scientific.net/amm.148-149.487.

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This paper designs a bubbling type of desulfurization reactor, which simulates flue gas nitrogen and sulfur dioxide according to a certain flow ratio, equipped with absorber through into the bubbling type desulfurization absorb and reactor by iodine volume method, measures import and export of SO2 concentration and pH value of absorber. The desulfurization rate of fly ash slurry is measured in the small drum bubble desulfurization reactor device. Results show that increasing the concentration of fly ash and entrance SO2 concentration, and decreasing particle size of fly ash will increase the d

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20

Li, Li, and Bin Zeng. "Application of Desulfurization Additive in Desulphurization System for 600MW Units." Advanced Materials Research 418-420 (December 2011): 1834–38. http://dx.doi.org/10.4028/www.scientific.net/amr.418-420.1834.

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This paper studies the application of desulfurization additives in the desulfurization system for 600MW units, Results show that desulfurization additives have a positive effect on the desulphurization efficiency, and it can gain notable economic benefits when it guarantees the effective concentration of the desulfurization additives and the quantity of limestone

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21

Wang, Zhan Guang, and Song Zhou. "Discussion on Ship Exhaust Gas Washing Desulfurization Technology." Applied Mechanics and Materials 472 (January 2014): 917–20. http://dx.doi.org/10.4028/www.scientific.net/amm.472.917.

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With the continuous development of shipping industry, exhaust gas p-ollution caused by ship emissions of sulfur dioxide is increasingly serious. In o-rder to meet the international maritime organizations (IMO) strict requirements on the water shipping environment, much attention of flue gas desulfurization technology research has been paid. But the ship desulfurization wastewater research is relatively little, water quality analysis and processing system of flue gas desulfurization wastewater research should be carried out. This paper mainly introduces the principle and characteristics of seaw

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22

Huang, Guosheng, Xiaoxue Zhai, Suyang Li, Deming Zhao, Zixiang Chen, and Lijun Zhu. "Study on the Role of Additives in Calcination Desulfurization Process of High Sulfur Petroleum Coke." Journal of Engineering System 2, no. 2 (2024): 24–31. http://dx.doi.org/10.62517/jes.202402205.

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Due to the high sulfur content of high sulfur petroleum coke, sulfur-containing gas will be produced in the production process, reducing product quality and other problems, resulting in increased production costs and equipment corrosion. How to reduce the sulfur content of high sulfur petroleum coke is of great significance to improve the utilization rate of high sulfur petroleum coke and the sustainable development of related industries. In this paper, the desulfurization of high sulfur petroleum coke was carried out by using the additive-assisted high-temperature calcination method. It was f

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23

Wen, Zhi Yong, Cheng Zhang, Qing Yan Fang, and Gang Chen. "Feasibility Study on Accessorial Limestone Injection Desulfurization System on Large Capacity Boiler." Advanced Materials Research 516-517 (May 2012): 293–301. http://dx.doi.org/10.4028/www.scientific.net/amr.516-517.293.

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Many large capacity boilers are facing the problems of desulfurization with the variation of coal quality received and small designed desulfurization capacity in current Wet Flue Gas Desulfurization(WFGD) system. WFGD capacity improving renovation is a high cost and long construction cycle project. Therefore, a proposal to add accessorial limestone injection desulfurization system without changing the current WFGD was investigated in this study. Laboratory experiments and pilot scale field tests on a 220t/h boiler were performed to certificate the possibility of adding accessorial limestone de

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24

Hong, Jianguo, Xinqing Zou, Ziqiang Qin, et al. "Effect of CO2 on the Desulfurization of Sintering Flue Gas with Hydrated Lime." Materials 16, no. 1 (2022): 303. http://dx.doi.org/10.3390/ma16010303.

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The effect of carbon dioxide (CO2) on the desulfurization of sintering flue gas with hydrate (Ca(OH)2) as an absorbent was investigated, and the formation of calcium carbonate (CaCO3) and its effect on the desulfurization was discussed. The competitive relationship between carbon dioxide (CO2) and sulfur dioxide (SO2) with the deacidification agent in sintering flue gas is discussed thermodynamically, showing that sulfates are more likely to be generated under high oxygen potential conditions and that SO2 reacts more preferentially than CO2 under a thermodynamic standard state. The amount of p

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25

Lim, Chiau Yuan, Mohd Faridzuan Majid, Sarrthesvaarni Rajasuriyan, Hayyiratul Fatimah Mohd Zaid, Khairulazhar Jumbri, and Fai Kait Chong. "Desulfurization Performance of Choline Chloride-Based Deep Eutectic Solvents in the Presence of Graphene Oxide." Environments 7, no. 11 (2020): 97. http://dx.doi.org/10.3390/environments7110097.

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Extractive catalytic oxidative desulfurization (ECODS) is the one of the recent methods used in fuel desulfurization which involved the use of catalyst in the oxidative desulfurization of diesel fuel. This study is aimed to test the effectiveness of synthesized choline chloride (ChCl) based deep eutectic solvent (DES) in fuel desulfurization via ECODS method, with the presence of graphene oxide (GO) as catalyst and hydrogen peroxide (H2O2) as oxidant. In this study, 16 DESs based on choline chloride were synthesized using glycerol (GLY), ethylene glycol (EG), tetraethylene glycol (TEG) and pol

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26

Guo, Hui Ling, Jun Lin Xie, and Kang Dan. "Experimental Investigation of Mixing Desulfurization Residues and Cement." Advanced Materials Research 113-116 (June 2010): 1976–80. http://dx.doi.org/10.4028/www.scientific.net/amr.113-116.1976.

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Disposition and utilization of desulfurization residues from thermal power plants in Portland cement was investigated, controlling the content of SO3 at 3.0%(in mass), thus exploring the application feasibility of desulfurization residues in cement industry by the analysis of recombination mechanisms between desulfurization residues and Portland cement. The results show that desulfurization residues can improve physical-mechanical properties of cement: increasing the strength at various ages; improving the water requirement for normal consistency; regulating the setting time effectively, etc.

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27

Hou, Hai Meng, Shi Yuan Li, and Qing Gang Lu. "Effect of Phosphorus on Desulfurization of Limestone during Sewage Sludge Combustion." Advanced Materials Research 518-523 (May 2012): 3328–34. http://dx.doi.org/10.4028/www.scientific.net/amr.518-523.3328.

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Experiments of desulfurization of limestone during sewage sludge combustion with different phosphorus contents were conducted in a 15 kW circulating fluidized bed test rig to investigate the effect of phosphorus on desulfurization. Chemical thermodynamic analysis was performed to compare with the experimental results. Chemical thermodynamic analysis indicates that relatively high content of phosphorus in sewage sludge will affect desulfurization because calcium will first react with phosphorus and then the rest is available for reaction with sulfur, which agrees well with the experimental resu

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28

Xu, Feng, Sanmei Zhao, Bin Li, et al. "Current Status of Zero Liquid Discharge Technology for Desulfurization Wastewater." Water 16, no. 6 (2024): 900. http://dx.doi.org/10.3390/w16060900.

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Desulfurization wastewater is industrial wastewater with a high salt content, high metal ions, and high hardness produced by flue gas desulfurization of the limestone-gypsum method in coal-fired power plants. This paper summarizes the source of desulfurization wastewater, water quality characteristics, water quality impacts, and other factors, combined with the current status of research worldwide to introduce the advantages and shortcomings of the existing desulfurization wastewater treatment technology. In addition, zero liquid discharge technology as a novel method to treat desulfurization

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29

Wang, Wang, Zhu, and Gong. "Method of Desulfurization Process Selection Based on Improved Fuzzy Comprehensive Evaluation: A Case Study of Papermaking Desulfurization in China." Processes 7, no. 7 (2019): 446. http://dx.doi.org/10.3390/pr7070446.

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With the increasingly prominent global energy and environmental problems, more and more enterprises have been required to desulfurize the exhausted gases. Different enterprises have different demands for the desulfurization process, thus the choice of desulfurization process methods has become a focus of attention. Since the evaluation of the desulfurization process involves many factors, this paper proposes an improved fuzzy comprehensive evaluation method to evaluate the selection of desulfurization process when the traditional evaluation method is not applicable. Firstly, an evaluation syst

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30

Wu, Qi Sheng, Shui Ping Li, and Chang Sen Zhang. "Preparation of Polyacrylamide Emulsion Modified Waterproof Desulfurization Building Gypsum." Key Engineering Materials 509 (April 2012): 51–56. http://dx.doi.org/10.4028/www.scientific.net/kem.509.51.

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In this paper the waterproofness of desulfurization building gypsum had been improved by polyacrylamide(PAM) emulsion. The effect of dosage and molecular weight of PAM emulsion on the physical mechanical properties and waterproofness have been investigated and XRD, SEM have been employed to determine the phase compositions of the material. The results showed that softening coefficient of desulfurization building gypsum increased from 0.34 to 0.69, the compressive strength after soaking in water for 24 h increased from 4.9MPa to 6.1 MPa. The effect of PAM emulsion modification prepared by PAM w

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31

Zhang, Chenghu, Dezhi Zou, Xinpeng Huang, and Weijun Lu. "Coal-Fired Boiler Flue Gas Desulfurization System Based on Slurry Waste Heat Recovery in Severe Cold Areas." Membranes 12, no. 1 (2021): 47. http://dx.doi.org/10.3390/membranes12010047.

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To reduce operating costs on the basis of ensuring the desulfurization efficiency in a wet flue gas desulfurization system, a theoretical model was put forward, and a calculation method was set up. Correlations between reaction zone height, flue gas inlet temperature, slurry inlet temperature, gas–liquid ratio and desulfurization efficiency were found. Based on the heat and mass transfer model of the spray tower, the integrated system of desulfurization tower and open slurry pool and the flue gas desulfurization-waste heat recovery system were established. Additionally, the effect of outdoor w

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32

Zhang, Rui, Zulpher Ahmad Mnipela, Linjun Yang, and Xiaodong Si. "Study on the Efficiency of Fine Particle Removal in a Single-Tower Dual-Cycle Desulfurization Process Utilizing Heterogeneous Condensation." Separations 11, no. 7 (2024): 192. http://dx.doi.org/10.3390/separations11070192.

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This study investigated a new method for controlling the emission of fine particles through heterogeneous condensation. Specifically, the research focuses on the application of single-tower double-cycle desulfurization technology in the wet flue gas desulfurization process. The establishment of a supersaturation environment necessary for heterogeneous condensation was achieved by reducing the temperature of desulfurization slurry in the oxidation zone. Numerical simulations were used to study the distribution of the supersaturation degree and fluid dynamics characteristics in the desulfurizati

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33

Vodennikova, O. S., and P. V. Holovkov. "Modern view on steel desulfurization." Metaloznavstvo ta obrobka metalìv 100, no. 4 (2021): 33–44. http://dx.doi.org/10.15407/mom2021.04.033.

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Modern technological schemes of steel production do not allow to achieve low (< 0.01 % S) and ultra-low (<0.005 % S) sulfur content on the production of in the metal directly. That is why out-of-furnace steel treatment is often used to remove sulfur. Desulfurization process of steel depends on the chemical composition of the slag, the time of its formation in the ladle, metal oxidation, conditions of mixing of steel in a ladle, additional technological operations and ladle metal processing. Methods are widely used for desulfurization of steel treatment of steel with solid slag-forming mi

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34

Cong, Jiang, and Yu Hui. "Research on the Process and Characteristics of Seawater Desulfurization for 350MW Unit." Advanced Materials Research 955-959 (June 2014): 2353–56. http://dx.doi.org/10.4028/www.scientific.net/amr.955-959.2353.

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Compared with the common wet process desulfurization in power engineering, this paper emphasis on seawater desulfurization process and characteristics ,and provide the reference for seawater desulfurization in foreign electric power engineering in the future.

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35

Zhu, Fei Yan, та Zhong Bo Hu. "Flocculation of Pseudomonas delafieldii R-8 by γ-Polyglutamic Acid Combined with Celite for Biodesulfurization of Model Oil". Advanced Materials Research 726-731 (серпень 2013): 368–72. http://dx.doi.org/10.4028/www.scientific.net/amr.726-731.368.

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γ-polyglutamic acid (PGA) was firstly used for recovery and immobilization of Pseudomonas delafieldii R-8 cells in biodesulfurization process. The PGA mediated flocculation was combined with celite adsorption to immobilize R-8 cells and the as-prepared immobilized cells showed a high initial specific desulfurization rate at 0.243 mmol l-1 h-1 and a good desulfurization stability with 95% desulfurization activity remained after 6 batches of desulfurization processes.

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36

Li, Guoping, Yixing Liu, Linfang Ao, and Hongbo Zhang. "Experimental Study on Optimization of Coal Electrochemical Desulfurization Process under Acidic Conditions." Advances in Engineering Technology Research 7, no. 1 (2023): 80. http://dx.doi.org/10.56028/aetr.7.1.80.2023.

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The feasibility of using added catalysts and organic solvents to improve the efficiency of coal electrolytic desulfurization was explored based on the study of the optimal electrolytic desulfurization conditions under acidic coal conditions using Shanxi Shigejie coal samples as raw materials.The effects of inorganic catalyst and organic solvent on inorganic and organic sulfur in coal were investigated under the condition of Hcl as the electrolyte, and the changes of sulfur content in coal before and after the experiment were analyzed by Coulometric titration, AAS, GB/T 215-2003, and total sulf

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Li, Yunyun, Yubo Sun, Wentao Hu, et al. "Preparation and Optimization of Steel Slag-Desulfurization Gypsum Composites Based on Interception of Arsenic-Contaminated Water at the Ground Surface." Processes 13, no. 4 (2025): 1033. https://doi.org/10.3390/pr13041033.

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Based on the characteristics and effective components of steel slag and desulfurization gypsum, a new type of permeable reactive material was prepared by combining steel slag and desulfurization gypsum, and a simulation experiment of arsenic- and antimony-contaminated groundwater remediation was carried out. A combination of X-ray fluorescent, BGRIMM Process Mineralogy Analyzing System (BPMA), ICP-MS, and SEM-EDS detection and analysis methods was used to investigate the effects of steel slag particle size, desulfurization gypsum particle size, steel slag and desulfurization gypsum ratio, and

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Zhang, Baojing, Peizhong Feng, and Tingan Zhang. "Desulfurization of Cu–Fe Alloy Obtained from Copper Slag and the Effect on Form of Copper in Alloy." Materials 15, no. 15 (2022): 5110. http://dx.doi.org/10.3390/ma15155110.

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In order to realize the high-value utilization of copper slag, a process for preparing Cu–Fe alloy through the reduction of copper slag is proposed. The sulfur in the alloy exists in the form of matte inclusions, which is different from sulfur in molten iron. The reaction of CaO with Cu2S is difficult. It is necessary to add a reducing agent to promote desulfurization. To avoid the introduction of other elements, Fe–Mn and CaC2 additions were used as desulfurizers for the desulfurization of Cu–Fe alloy. The thermodynamics of the desulfurization reaction were calculated and the experimental pro

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Guo, Ai Hong, Shuang Feng, Jin Xia Zhang, and Fu Sheng Niu. "Modification of Water Reducer on Desulfurization Gypsum Wall Material." Advanced Materials Research 700 (May 2013): 191–94. http://dx.doi.org/10.4028/www.scientific.net/amr.700.191.

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In order to broaden the utilization of desulfurization gypsum in China and achieve the direct usage of desulfurization gypsum, in this paper, Polycarboxylic acid water-reducer (HC), Naphthalene sulfonate formaldehyde polycondensate (NF) and Sulfonated melamine formaldehyde resin (SM) were selected as water reducer to modify desulfurization gypsum. The experiment results are as follows: SM water reducer has little effect on setting time of desulfurization gypsum, although it is helpful to increase the strength of the gypsum-sample, however, compared with HC and NF, it has no obvious effect. Abo

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Yang, Rufei, Hongfu Zhang, and Mingming Gao. "Study on economic operating mode for combined desulfurization system of circulating fluidized bed unit." IOP Conference Series: Earth and Environmental Science 984, no. 1 (2022): 012002. http://dx.doi.org/10.1088/1755-1315/984/1/012002.

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Abstract With the stricter emission regulation taking effect, most of circulating fluidized bed (CFB) power generation units operates with conventional desulfurization in CFB furnace and flue gas desulfurization (FGD) technology to meet the requirements of ultralow SO2 emission. Therefore, it is urgent to analyse operating cost of the combined desulfurization system and explore the low-cost operating mode for CFB units. In this paper, the operating cost model of combined desulfurization system was established, in which the influence of desulfurization in furnace on thermal efficiency of the CF

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Zhang, Yinke, and Hang Xu. "Optimization of Desulfurization Process via Choline Phosphotungstate Coupled with Persulfate Using Response Surface Methodology." Catalysts 14, no. 5 (2024): 326. http://dx.doi.org/10.3390/catal14050326.

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Using a simple acid-base neutralization method, a Ch-PW solid catalyst was synthesized by mixing choline hydroxide (ChOH) and phosphotungstic acid (HPW) at a 2:1 molar ratio in an aqueous solution. This catalyst was combined with a 20 wt.% potassium peroxymonosulfate (PMS) solution, using acetonitrile (ACN) as the extraction solvent to create an extraction catalytic oxidative desulfurization system. The optimal desulfurization conditions were determined through response surface methodology, targeting the highest desulfurization rate: 0.99 g of Ch-PW, 1.07 g of PMS, 2.5 g of extraction solvent,

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Li, Qiang, Yang Liu, Juan Juan Fei, et al. "Deep Desulfurization of Model Oil Using Ionic Liquid and Active Carbon Binary System." Advanced Materials Research 550-553 (July 2012): 957–60. http://dx.doi.org/10.4028/www.scientific.net/amr.550-553.957.

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Ionic liquid (IL) N-methyl-N-methylimidazoliumdimethyl phosphate ([DMIM][DMP]) and active carbon (AC) binary system were established and demonstrated to be effective for the deep removal of sulfur compounds (Dibenzothiophene, DBT) from model oil at room temperature. Mass ratio of IL to active carbon on the extractive performance, desulfurization temperature, time and desulfurization reagent to model oil were investigated. In the first stage desulfurization efficiency of binary system, IL and active carbon were 65.09%, 51.72% and 47.3%，which was followed the order of binary system > IL >

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Yang, Lei, Shang Guan Ju, Hui Qing Wang, et al. "The Effect of Regeneration Conditions on the Properties of CeO₂ Desulfurization Sorbent in SO₂ Atmosphere." Materials Science Forum 896 (March 2017): 155–61. http://dx.doi.org/10.4028/www.scientific.net/msf.896.155.

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CeO2 desulfurization sorbent was prepared by calcination of Ce(NO3)3 ● 6H2O and the effect of regeneration conditions on its properties in SO2 atmosphere was investigated in a fixed bed reactor. The regeneration conversion and the yield of elemental sulfur for CeO2 desulfurization sorbent were tested and calculated. And the composition and the morphology of CeO2 desulfurization sorbent before and after regeneration were obtained by X-ray diffraction and scanning electron microscope. It was found that the main components of the regeneration products of Ce2O desulfurization sorbent were solid Ce

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Li, Ji Wu, Jie Yu, and Wei Jian Cai. "Removal of SO₂ by Corona Discharge Combined with Fe (II) Catalysis." Advanced Materials Research 518-523 (May 2012): 3191–94. http://dx.doi.org/10.4028/www.scientific.net/amr.518-523.3191.

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The effects of the supply voltage, water flow rate, concentration of inlet SO2and Fe2+in liquid phase on the desulfurization efficiency were investigated by corona discharge with liquid phase on the condition of DC discharge and pulse discharge. The experimental results showed that the desulfurization efficiency increased with the increasing of the supply voltage, water flow rate, and concentration of Fe2+. However, the desulfurization efficiency was nearly unchanged with the increasing of the initial concentration of SO2. The desulfurization efficiency in pulse discharge was better than that

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Pu, Zhao Ting, Jie Mi, and Jian Kang. "Removal of Organic Sulfur in Two Coals in Microwave and Ultrasonic Co-Enhanced Oxidative Process." Advanced Materials Research 781-784 (September 2013): 923–26. http://dx.doi.org/10.4028/www.scientific.net/amr.781-784.923.

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Microwave heating has been used in desulfurization of coal. Removal of organic sulfur and organic sulfur forms alterations of Xishan (XS) coal and Yunnan (YN) coal was investigated under microwave and ultrasonic irradiation. The results showed the optimum conditions for desulfurization were 50 min and 560 W for microwave and ultrasound for both coals. The desulfurization rate was maximum 23.53% for XS coal and 76.58% for YN coal. The effect of combining microwave and ultrasonic irradiation on desulfurization was stronger than simple microwave irradiation. The content of sulphone sulfur in coal

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Zuo, Xianglong, Shen Zuo, Jin Li, Ning Hou, Haoyu Zuo, and Tiancheng Zhou. "Study of the Design and Mechanical Properties of the Mix Proportion for Desulfurization Gypsum–Fly Ash Flowable Lightweight Soil." Coatings 13, no. 9 (2023): 1591. http://dx.doi.org/10.3390/coatings13091591.

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In order to solve the global problem of bridge head jumping caused by the insufficient compaction of the roadbed in the transition section of highways and bridges, a desulfurization gypsum–fly ash flowable lightweight soil without vibration, capable of self-compaction, low bulk density, and economic and environmental protection, has been developed. This study selected low-grade cement, industrial waste (fly ash and desulfurization gypsum), and Yellow River silt as the raw materials for the design of the mix ratio of a desulfurization gypsum–fly ash flow-state lightweight soil mix. Through mult

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Jiang, Peng, Jiajun Jiang, Rodrigue Armel Muvunyi, and Jianli Li. "Effect of Flow Rate and Partial Pressure of Oxygen on Desulfurization of KR Slag." Metals 14, no. 5 (2024): 516. http://dx.doi.org/10.3390/met14050516.

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KR (Kanbara Reaction) desulfurization slag is a solid waste that is not sufficiently utilized. This is because the KR desulfurization slag contains 1–2.5% sulfur, which is directly used in steel smelting to increase the sulfur content in molten steel. Therefore, the possibility of oxidation desulfurization of KR desulfurization slag was studied in this study. Experiments were conducted to investigate the possibility of removing sulfur from used KR (Kambara Reaction) slag with oxidation. The KR slag samples were treated with oxidative desulfurization in the oxygen partial pressure range of 0.05

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Du, Chuan Wei, Ying Lv, and Guo Zhong Li. "Research on Preparation and Properties of New Type Desulfurization Gypsum Block." Applied Mechanics and Materials 540 (April 2014): 217–20. http://dx.doi.org/10.4028/www.scientific.net/amm.540.217.

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Desulfurization building gypsum was used as the main gelled material and fly ash was used as filler to prepare the new type desulfurization gypsum block. the mechanical properties of the new type desulfurization gypsum block was improved by adding compound excitation agent into the desulphurization gypsum-fly ash cementing material to stimulate its activity. The water resistant performance of the new type desulfurization gypsum block was improved through adding wax-alcohol compound waterproofing agent into it. Experimental results show that when the filling amount of fly ash was 20%(the qualit

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Guan, Ze-kun, Yu Zhang, Ting Zhao, and Yun-qi Liu. "Ni/ZnO@ZSM-5 Reaction Adsorption Desulfurization Catalyst for Octane Number Improvement." Journal of Physics: Conference Series 2594, no. 1 (2023): 012040. http://dx.doi.org/10.1088/1742-6596/2594/1/012040.

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Abstract Reaction adsorption desulfurization technology is one of the main means of gasoline desulfurization. In this work, ZnO nanoparticles were prepared by pyrolytic oxidation using ZIF-8 as precursor. ZnO spheres with particle size of 5 nm can be formed after the pyrolysis of Zif-8. Ni/ZnO5nm prepared by equal volume impregnation method can achieve 99.2% desulfurization rate at 390°C, which has more excellent desulfurization performance compared to Ni/ZnO100nm. Ni/ZnO@ZSM-5 was synthesized by in-situ growth-pyrolysis oxidation-equal volume impregnation method. In the reaction adsorption de

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Sun, Zhiguo, Yue Zhou, Shichao Jia, Yaru Wang, Dazhan Jiang, and Li Zhang. "Enhanced SO2 Absorption Capacity of Sodium Citrate Using Sodium Humate." Catalysts 11, no. 7 (2021): 865. http://dx.doi.org/10.3390/catal11070865.

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A novel method of improving the SO2 absorption performance of sodium citrate (Ci-Na) using sodium humate (HA–Na) as an additive was put forward. The influence of different Ci-Na concentration, inlet SO2 concentration and gas flow rate on desulfurization performance were studied. The synergistic mechanism of SO2 absorption by HA–Na and Ci-Na was also analyzed. The consequence shows that the efficiency of SO2 absorption by Ci-Na is above 90% and the desulfurization time added with the Ci-Na concentration rising from 0.01 to 0.1 mol/L. Both the desulfurization efficiency and time may increase wit

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