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Desulfurization - Wikipedia

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Desulfurization or desulphurisation is a chemical process for the removal of sulfur from a material. This involves either the removal of sulfur from a molecule (e.g. A=S → A:) or the removal of sulfur compounds from a mixture such as oil refinery streams. These processes are of great industrial and environmental importance as theاحصل على السعر

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Summary of research progress on industrial flue gas

2022/1/15  G.W. Xu et al. used a powder-particle spouted bed (PPSB) as the reactor. ...احصل على السعر

Xueke Li, Jinru Han, Yan Liu, Zhihe Dou, Ting-an Zhang

Flue-gas desulfurization - Wikipedia

Flue-gas desulfurization (FGD) is a set of technologies used to remove sulfur dioxide (SO2) from exhaust flue gases of fossil-fuel power plants, and from the emissions of other sulfur oxide emitting processes such as waste incineration, petroleum refineries, cement and lime kilns. احصل على السعر

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Desulfurization - an overview ScienceDirect Topics

Desulfurization is a technology used to separate SO 2 from its emitting sources such as احصل على السعر

Study on desulfurization and modification of high-sulfur

2024/12/1  However, the desulfurization rate for the group roasted with iron was احصل على السعر

Biogas Desulphurizer - PowerLink

filler with the desulfurization tower, the normal use of the desulfurization tower can not be احصل على السعر

Flue Gas Desulphuriser Explained - saVRee

Dry type FGD systems utilise a reagent in powder form (dry form). Wet type FGD systems utilise an alkaline slurry that is formed after mixing a dry reagent with water. Although two main types of FGD designs are possible, more than 75% احصل على السعر

Engineering application of desulfurization and denitrification ...

activated coke, denitrification, desulfurization, regeneration 1 INTRODUCTION China's total احصل على السعر

Desulfurization - Corrosionpedia

2024/7/19  This effect has led to an interest in the three main methods of removing coal احصل على السعر

Modeling on the Desulfurization of the Molten Steel During RH

2024/8/7  The powder injection and block injection are the two main desulfurization احصل على السعر

A Review of Modeling Hot Metal Desulfurization

1 Introduction. Hot metal desulfurization serves as the main unit process for removing sulfur in blast-furnace-based steelmaking. Hot metal desulfurization is commonly conducted in a ladle or a torpedo car, 1 using a desulfurization احصل على السعر

Effect of adjusted mesoscale drag model on flue gas desulfurization

2021/12/10  An energy minimum multiscale model was adjusted to simulate the mesoscale structure of the flue gas desulfurization process in a powder-particle spouted bed and verified experimentally. The obtained results revealed that the spout morphology simulated by the adjusted mesoscale drag model was unstable and discontinuous bubbling spout unlike the احصل على السعر

Modeling on the Desulfurization of the Molten Steel During RH

2024/8/7  The powder injection and block injection are the two main desulfurization methods used in the RH process. Among these methods, powder injection with the top lance is particularly effective. It notably enlarges the contact area between the powder and the molten steel, enhances the desulfurizer particles' utilization, and facilitates precise ...احصل على السعر

Recent advances in process and materials for dry desulfurization

Currently, desulfurization technologies can be categorized into three main types: wet flue gas desulfurization (FGD) [11], [12], [13], semi-dry desulfurization [14] and dry desulfurization [15].Wet flue gas desulfurization is widely employed in large-scale desulfurization processes due to its high efficiency and low energy consumption [16].However, it poses a significant environmental احصل على السعر

Desulfurization of black powder for isotopic profiling using

2022/8/1  The changes in δ 13 C, δ 15 N, and δ 18 O after desulfurization were close to the standard deviation values and did not affect the analysis of black powder. Desulfurization and stable isotope analysis were performed on 12 black powder samples obtained from cases that happened in eight different areas in China, and the carbon, nitrogen, and ...احصل على السعر

Studying the mechanism and kinetics of fuel desulfurization

2023/5/10  To test the effect of ultrasonic power on desulfurization rates, three power including 240 W, 320 W, and 360 W were used in piezo-desulfurization of TP and DBTP while pH was adjusted at 10 and 75 ...احصل على السعر

A comprehensive study on the rheological properties of

2024/11/7  As the degree of desulfurization of the rubber powder increases, the fatigue damage rate of asphalt gradually decreases, leading to an increase in the fatigue life. ... The main components of the ...احصل على السعر

Numerical simulation of semi-dry flue gas desulfurization process in ...

2020/1/1  For flue gas cleaning, many different processes have been developed for SO 2 and CO 2 removal. Ma et al. [7], [8], [9] experimentally investigated the use of limestone for SO 2 removal from flue gas in the semidry FGD process with a powder-particle spouted bed (PPSB), they also studied the influence of gas components on removal of SO 2 from flue gas in the احصل على السعر

More accurate modeling of flue gas desulfurization in powder

2022/2/28  Among them, the semi-dry flue gas desulfurization technology in powder-particle spouted beds (PPSBs) is considered a reliable and effective desulfurization method.احصل على السعر

A New Semi-Dry Desulfurization Process Using a Powder

2000/6/1  Xu et al. [10] experimentally tested a new semi-dry desulfurization process, and the process uses the so-called powder-particle spouted bed PPSB as the reactor in which coarse medium particles ...احصل على السعر

Desulfurization of black powder for isotopic profiling using

2022/8/1  The changes in δ 13 C, δ 15 N, and δ 18 O after desulfurization were close to the standard deviation values and did not affect the analysis of black powder. Desulfurization and stable isotope analysis were performed on 12 black powder samples obtained from cases that happened in eight different areas in China, and the carbon, nitrogen, and ...احصل على السعر

Numerical simulation of semi-dry flue gas desulfurization process

2019/11/1  Computational fluid dynamics (CFD) combined with the two-fluid model (TFM) was used for simulation of water vaporization and semi-dry flue gas desulfurization process in a two dimensional powder ...احصل على السعر

Numerical Simulation on the Desulfurization of the Molten Steel

2022/12/13  In the current study, the multiphase flow of the molten steel, the dispersion of the desulfurizer, and the desulfurization kinetics were combined to study the desulfurizer injection desulfurization during the RH process using a coupled k–ε model, Volume of Fraction model, Discrete-Phase Model, and unreacted core model. The effect of the desulfurizer diameter on احصل على السعر

Kinetic Simulation of Hot Metal Pretreatment: Desulfurization

2022/2/6  A kinetic model for hot metal pretreatment process was developed. The co-injection of soluble magnesium and insoluble lime, and both of the transitory and permanent contact reaction zones were considered in the present model. That is, the model covers all the general features of hot metal desulfurization in the submerged powder injection, practiced at احصل على السعر

Desulfurization of black powder for isotopic profiling using

2022/8/1  The changes in δ 13 C, δ 15 N, and δ 18 O after desulfurization were close to the standard deviation values and did not affect the analysis of black powder. Desulfurization and stable isotope analysis were performed on 12 black powder samples obtained from cases that happened in eight different areas in China, and the carbon, nitrogen, and ...احصل على السعر

Numerical simulation of semi-dry flue gas desulfurization process

2019/11/1  Computational fluid dynamics (CFD) combined with the two-fluid model (TFM) was used for simulation of water vaporization and semi-dry flue gas desulfurization process in a two dimensional powder ...احصل على السعر

Numerical Simulation on the Desulfurization of the Molten Steel

2022/12/13  In the current study, the multiphase flow of the molten steel, the dispersion of the desulfurizer, and the desulfurization kinetics were combined to study the desulfurizer injection desulfurization during the RH process using a coupled k–ε model, Volume of Fraction model, Discrete-Phase Model, and unreacted core model. The effect of the desulfurizer diameter on احصل على السعر

Kinetic Simulation of Hot Metal Pretreatment: Desulfurization

2022/2/6  A kinetic model for hot metal pretreatment process was developed. The co-injection of soluble magnesium and insoluble lime, and both of the transitory and permanent contact reaction zones were considered in the present model. That is, the model covers all the general features of hot metal desulfurization in the submerged powder injection, practiced at احصل على السعر

(PDF) Modeling and Simulation of Hot Metal Desulfurization by Powder

Mono-injection desulfurization of hot metal with lime (solid line), calcium carbide (dotted line) and magnesium (dashed line) powders. Figure 6. Desulfurization behavior under co-injection using the mixtures of Table 3. Figure 7. Half-life of the desulfurization reaction as function of the lime content in the co-injected mixture.احصل على السعر

Application of SDS dry desulfurization in coke oven flue gas

2021/8/16  The absorbed and dried powder-containing flue gas enters the bag filter for further desulfurization reaction and soot purification. ... Coke oven desulfurization by-products can be used as raw materials for the production of mine tailings curing agents, and can also be used in the following fields: blending into cement, so that the hydration ...احصل على السعر

More accurate modeling of flue gas desulfurization in

Sulfur dioxide is the main source of air pollution and easily forms a haze ... drag model on flue gas desulfurization in powder-particle spouted beds, Frontiers of Chemical Science and Engineering ...احصل على السعر

Desulfurization of low rank coal co-pyrolysis with reduced iron powder

2018/12/10  Therefore, it means that the dosage of Fe powder used in the co-pyrolysis process of coal/Fe powder mixture may be excessive. Therefore, in order to save the Fe powder usage as well as costs, the coal/Fe powder mass ratio was optimized and found to be 4:1. Compared with the mass ratio of 1:1, the mass ratio of 4:1 significantly saved the Fe powder.احصل على السعر

Powder Blasting in Hot Metal Desulfurization by Mechanical

In this research, the behaviors of the desulfurization powder under different blasting conditions were investigated, and the optimum blasting conditions for achieving higher ... The powder used in the experiment was lime powder with the average diameter of 130 ˚m. The feeding rate was 5.2 kg/min. In these measurements, theاحصل على السعر

Sulfur dioxide removal: An overview of regenerative flue gas ...

2020/5/16  Numerous mitigation techniques have been incorporated to capture or remove SO2 with flue gas desulfurization (FGD) being the most common method. Regenerative FGD method is advantageous over other methods due to high desulfurization efficiency, sorbent regenerability, and reduction in waste handling. The capital costs of regenerative methods are احصل على السعر

Advantages Of Desulfurization Stone Powder Using Desulfurization

The main material in the desulfurization project is limestone powder (the fineness is generally required to pass 90% of 325 meshes or 95% of 250 days), and the preparation of limestone powder is generally divided into vertical roller mill process and ball mill process. As the desulfurization problem has become particularly prominent in recent years, the type of احصل على السعر

An evaluation of desulfurization technologies for sulfur removal

The desulfurization yield, with the use of 30% H 2 O 2 solution, of commercial light oil was 75% following 24 h of photo-irradiation and the sulfur content in the light oil was reduced from 0.2 wt% to less than 0.05 wt%. 145 In these studies, 143–145 desulfurization was basically done by photodecomposition of sulfur-containing compounds in ...احصل على السعر

Application of SDS dry desulfurization in coke oven flue gas ...

5 Desulfurization and denitrification process system composition. The coke oven flue gas desulfurization and denitrification system consists of the following parts: (1) SDS desulfurization agent dosing and uniform distribution device (key equipment should be considered for backup); (2) Dust removal equipment and ancillary equipment;احصل على السعر

Mathematical Model of Hot Metal Desulfurization by Powder Injection

2012/2/6  By making use of the developed model, the effect of the main production variables on the rate and efficiency of primary hot metal desulfurization is quantified.احصل على السعر