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desulfurization of iron equipment
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Deep desulfurization of sintering flue gas in iron …
The 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 …
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Sulphur removal in ironmaking and oxygen …
There are four stages where sulphur can be removed: in the blast furnace (BF), during hot metal (HM) pretreatment, in the converter …
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Studying the mechanism and kinetics of fuel desulfurization …
Desulfurization process by using piezo catalyst. In a Pyrex cell, 50 mg of piezocatalyst was used to oxidative desulfurize the model fuel and 25 mL of model fuel (TP or dibenzothiophene (DBTP)/n ...
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Advances in Resources Recovery of H2S: A Review of Desulfurization …
Hydrogen sulfide (H2S) is a notorious and lethal gas widely generated in human economic activities and natural occurrences. The growing demand for pollution control makes it vital for the development of efficient processes to remove and convert H2S into high-valued products. As such, diversified technologies have been extensively …
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Modern High-Performance Complexes of Extra-Deep
1 Citation. Explore all metrics. The paper presents technological and configuration solutions for new complexes of cast iron desulphurization by mono …
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Hydrogen Sulfide Adsorption by Iron Oxides and Their …
1. Introduction. Hydrogen sulfide (H 2 S) is one of the major concerns in civil activities [] and industrial processes [] where it represents an undesired compound for many different reasons.It poses serious safety challenges at a small and large scale owing to accidental releases, whose critical conditions are rapidly reached in case of fugitive …
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Desulfurization performance of iron supported on activated …
Oxidative desulfurization utilizing activated carbon supported phosphotungstic acid in the frame of ultrasonication. Abstract Desulfurization technology is essential to remove sulfur content in diesel oil to achieve clean fuel products. In this study, oxidative desulfurization via ultrasonic bath equipment was….
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Desulphurisation of Iron | Nature
Published: 31 August 1893. Desulphurisation of Iron. JOHN PARRY. Nature 48, 427–428 ( 1893) Cite this article. 612 Accesses. Metrics. Abstract. THE elimination of sulphur from …
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Desulfurization of Iron Ores: Processes and Challenges
The achievement of higher sulfur removal rates has been an important goal since the development of sulfur removal techniques. In this research, an effort is made to separately introduce the various processes, industrial practices, and fundamental research activities to remove sulfur from iron ores, concentrates, or roasted iron ores.
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Performance of SPE electrodes in electrolytic
H 2 S in industrial raw gas and industrial waste gas can cause equipment corrosion and catalyst poisoning, ... Fig. 4 shows that current efficiency of electrolytic regeneration of desulfurization of iron complex is up to 91% at the electrode potential of 0.3V and it is about 90% from 0.25V to 0.50V. Current efficiency on the stainless-steel ...
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An Iron-Catalyzed Protein Desulfurization Method …
Here we show that cysteine desulfurization by a phosphine can be effected efficiently by micromolar concentrations of iron under aerobic conditions in hydrogen carbonate buffer, that is using conditions that are reminiscent of iron-catalyzed oxidation phenomena occurring in natural waters.
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Treatment of Hot Metal Desulfurization Slag With CO
Depending on hot metal quality, types and quantity of desulfurization reagents used, raking equipment, and raking operation, the generation rate of hot metal desulfurization slag varies, typically in the range of 15 to 25 kg/t hot metal. ... iron ores and fluxes or desulfurization reagents with a low level of sulfur. Clearly, oxidation ...
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Desulfurization of Iron Ores: Processes and Challenges
In this research, an effort is made to separately introduce the various processes, industrial practices, and fundamental research activities to remove sulfur …
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Application of molten iron desulfurization slag to replace …
Molten iron desulfurization slag (DS) is the tail slag produced in the pre-desulfurization process of molten iron. ... The ball mill is an SM-500 (Hebei Instrument Equipment Co., Ltd., China) equipped with 100 kg grinding medium. The dried DS and SS (5 kg, respectively) were both grounded in a ball mill for 40 min. ...
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Desulfurization Behavior of Iron-based Sorbent with MgO …
The sulfidation behaviors of iron-based sorbent with MgO and MgO-TiO2 are studied under different isothermal conditions from 623 to 873 K in a fixed bed reactor. The results of sorbents sulfidation experiments indicate that the sorbents with MgO and TiO2 additives are more attractive than those without additives for desulfurization of hot coal gas. The …
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Resource utilization of flue gas calcium-based …
number of industrial flue gas desulfurization equipment has been constructed. Industrial flue gas desulfurization equipment in China will reach 109,200 sets in 2025 [7, 8]. ... process, which is widely used in electric power, iron and steel, non-ferrous metals, and other industries [9, 10]. Industrial flue gas desulfurization can effectively ...
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Biogas Desulfurization – GAS RNG SYSTEMS
This is a high performance desulfurization activated carbon specifically made for biogas and landfill gas applications. This media requires a relative humidity range of 60% to 80%, a temperature range of 30°C (86°F) to 40°C (104°F), and an oxygen to sulfur ratio of 3 to 1 for optimum performance. Tests performed on our activated carbon ...
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(PDF) Desulfurization techniques process and future …
Due to the most recent environmental requirements, wide desulfurization has become an increasingly important way to obtain ultra-clean fuels for transportation of less than 15 ppmw of sulfur, such ...
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Desulfurization of Iron Ores: Processes and Challenges
A typical of the high sulfur iron ore from Inner Mongolia, China, iron grade of 53.06% and sulfur content is 2.76%, the main metal mineral in the ore is magnetite, followed by magnetic pyrite ...
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Modern High-Performance Complexes of Extra-Deep
Figure 2 shows the cross-section of the deep cast iron desulfurization complex installed at the Qingdao metallurgical complex, from which it can be seen that the DCIDC is a trestle-type structure with the equipment located on it. During the process of magnesium injection and slag skimming, smoke generated inside the ladle is captured …
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Desulphurisation of Iron | Nature
THE elimination of sulphur from iron and the chemical reactions, whereby sulphur, in the presence of powerful basic materials, is removed from crude iron, has recently attracted considerable ...
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Iron processing
Basically, the blast furnace is a countercurrent heat and oxygen exchanger in which rising combustion gas loses most of its heat on the way up, leaving the furnace at a temperature of about 200° C (390° F), while descending …
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Desulfurization mechanism of high-sulfur coal by heating reduced iron
The experiment proved that the reduced iron powder affects the sulfur in the removed coal. When the mass ratio of coal powder to iron powder was 5:2, the best desulfurization effect was obtained at 600 °C for 1 h. The desulfurization rate reached 80.09%, and more than 76.32% organic sulfur was removed. The removal
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Desulfurization
The possible effect of calcium addition on downstream equipment such as electrostatic precipitators. 4. ... After removal of iron, antimony, organics and particulates the purified acid can be re-used as electrolyte in new batteries. ... A. Ikeda, Reactor design of honeycomb desulfurization process for equalizing sorbent usage with improved flow ...
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Technologies for biogas desulfurization
Biological desulfurization, in contrast with most traditional desulfurization techniques based on physico-chemical processes (impregnated activated carbon, alkaline scrubber, iron chloride dosage ...
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Kinetics of hot metal desulfurization by bottom-blowing
3.1 Desulfurization mechanism of hot metal with magnesium vapor injection. The changes in the content of magnesium in molten iron at different temperatures are shown in Fig. 2.It can be seen from Fig. 2 that the content of magnesium in molten iron remains about 10 × 10 −6 without change throughout the desulfurization reaction, which …
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Desulfurization of heavy naphtha by oxidation
Similarly, promotion activated carbon with iron enhances its desulfurization ability for the gases [23]. ... The bulk phases were determined by comparing of the results with the standard data provided by the equipment supplier. These data were complemented with X-ray photoelectron spectroscopy (XPS) scanning, which provided …
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Review on recent advances in adsorptive desulfurization
This fly ash-based zeolite (Gismondine) was active for desulfurization of a model feed of TH (500 ppm S) and BT (500 ppm S) with 43% and 63.5% sulfur removal efficiency [125]. Dolochar is a waste by-product of the sponge iron industry. It is a black coal-like crystalline material containing SiO 2, Al 2 O 3, Fe 2 O 3, CaO, MgO, and fixed …
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Desulfurization of heavy oil | Applied Petrochemical …
Strategies for heavy oil desulfurization were evaluated by reviewing desulfurization literature and critically assessing the viability of the various methods for heavy oil. The desulfurization methods including variations thereon that are discussed include hydrodesulfurization, extractive desulfurization, oxidative desulfurization, …
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Technologies for biogas desulfurization
Desulfurization is a critical process for biogas upgrading to biomethane, because hydrogen sulfide is toxic and corrosive. In this paper, we conduct a systematic review to check the most recent studies on desulfurization technologies and find trends, potentials, and limitations of each technique. The information of 51 articles published …
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Resource utilization of semi-dry flue gas desulfurization ash …
Semi-dry flue gas desulfurization ash (SFGDA) is an abandoned Ca and S resource that is currently stacked without appropriate disposal methods. A technology with …
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Advances in technologies for in situ desulfurization of biogas
When using iron salts for desulfurization, the pH decreases as H + is generated, ... efficiency can be as high as 98% and the operation cost is reported to be more than 70% lower than traditional chemical desulfurization. One set of equipment treats biogas at a capacity of 100–1200 ...
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Deep desulfurization of sintering flue gas in iron and steel …
The basic principle of deep desulfurization of sintering flue gas in iron and steel plant based on the low-temperature oxidation method is to use sodium hydroxide …
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Gas Desulfurization
Gas Desulfurization (H₂S removal) Technologies. Common H₂S removal technologies for H₂S removal from biogas fall into one of the following: Absorption into a liquid either water or caustic solution, Adsorption on a …
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Experimental study on integrated desulfurization and
Iron, as a doping metal, demonstrates an effective ability to substitute Ti, creating active sites on the TiO 2 surface that promote the decomposition of H 2 O 2 into …