— Sulphur removal in the ironmaking and oxygen steelmaking process is reviewed. A sulphur balance is made for the steelmaking process of Tata Steel IJmuiden, the Netherlands. ... 'Mechanism of resulfurization in magnesium desulfurization process of molten iron'. ISIJ Int., 2005, 45,, 1607–1615. doi: 10.2355/isijinternational.45.1607 Web …

The Flue-Gas Desulfurization (FGD) process utilizes a set of technologies to remove sulfur dioxide (SO 2) from the flue gas emissions of coal-fired power plants.FGD systems were developed as a response to the exhaust – flue gases – from fossil fuel-burning plants, principally coal-burning, that posed both an environmental and human health hazard.

 — The flue gas desulfurization (FGD) system is currently the technology with the largest application scale and the best effect in the industrial industry, mainly including dry, wet and semi-dry methods (Xu et al., 2000).Wet desulfurization technology shows a higher desulfurization efficiency than dry method, but the products of wet method will cause …

 — Flue gas desulfurization (FGD) is a critical process for reducing sulfur dioxide (SO2) emissions from industrial sources, particularly power plants. This research uses calcium silicate absorbent ...

 — This blog post is the third in a three-part series that discusses flue gas desulfurization (FGD). The first post provides overviews of sulfur dioxide (SO 2) and emissions regulations, the FGD industry, and global FGD market trends.The second post provides high-level overviews of wet, semi-dry, and dry FGD technologies with respect …

H2S removal of biogas as an indispensable process. The traditional desulfurization technologies for biogas was included the wet desulfurization, dry desulfurization and bio desulfurization. 2. Wet desulfurization Wet desulfurization is the removal of hydrogen sulfide from a special solvent by countercurrent contact with gas[4]. The solvent is ...

Control and Treatment of Air Emissions. Shahryar Jafarinejad, in Petroleum Waste Treatment and Pollution Control, 2017. 5.1.5 Flue-Gas Desulfurization. Flue-gas desulfurization (FGD) is a scrubbing technique that uses an alkaline reagent (typically a sodium- or calcium-based alkaline regent) to remove SO 2 from flue gas (Tri-State …

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.

 — 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 …

 — Flue gas desulfurization (FGD) is the removal process of sulfur dioxide (SO2) from flue gases. Sulfur dioxide in gases is produced by the combustion of fossil fuels and many industrial processes such as gasoline refining as well as cement, paper, glass, steel, iron and copper production. Flue Gas Desulfurization (FGD) System Description

 — As the flue gas desulfurization and denitrification process is continuously improved and innovated, the operating costs have decreased; however, there are still large differences in actual operation. The limited range for the operating cost by comparing is 100 ≤ × ≤ 8000 (unit: ten thousand yuan). (iii) Desulfurization and denitrification ...

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 reagent that is either injected into the metal bath or added on top of it. 2 From the thermodynamic point of view, the fundamental …

 — The most commonly required desulfurization process is in natural gas, but it is also required for flue gas, coal and oil. Sulfur in crude oil, natural gas, process gas and natural gas liquids (LNG) may take many forms, including hydrogen sulfide (H 2 S), carbonyl sulfide (COS), sulfur oxides (SOx) and the whole family of mercaptans.

 — 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 as diesel, gasoline, and jet fuel. as a result of the strict requirements for transportation fuels.

 — In this review, the state-of-the-art processes for H 2 S conversion and utilization are reviewed. The potentials of various value-added products from H 2 S utilization, such as H 2, syngas, COS, CH 3 …

 — Thus process parameters have to be controlled and optimized for obtaining low sulphur steel and concentration as low as 0.002% can be achieved from initial high S concentration of 0.06%. ... Relative degree of desulfurization, (R=Ws/Wm) as affected by stirring power and time, (kSt), and the product of specific quantity of ladle slag and sulfur ...

 — The desulfurization methods including variations thereon that are discussed include hydrodesulfurization, extractive desulfurization, oxidative desulfurization, biodesulfurization and desulfurization through …

 — The selectivity of a facile reductive and extractive desulfurization process was studied. In this desulfurization method, polyethylene glycol was used as the extractant, and sodium borohydride was ...

 — We propose a process not requiring external hydrogen feed to the feedstock. The hydrogen for the hydrogenation of the sulfur species is obtained directly from the hydrocarbon matrix reacting on a zeolite catalyst. The result is a desulfurization process with considerably simplified process management and a superior process startup.

 — The chemical reaction formula for this desulfurization process is: CaCO 3 + SO 2 + 2 H 2 O +½ O 2 => CaSO 4 + 2 H 2 O + CO 2 SO 2 is absorbed by the CaCO 3 (limestone) thus reducing the outlet SO ...

The process converts undesirable aromatics, olefins, nitrogen, metals, and organosulfur compounds into stabilized products. ... The desulfurization reactions take place over the cobalt-molybdenum bed and the nitrogen reactions take place over the alumina bed. The reactor temperature is held at a constant 315°C and a pressure of 370 psig.

 — Adsorptive desulfurization (ADS) is emerging as a low-cost alternative to ultra-deep hydrodesulfurization. In ADS, sulfur compounds are removed via physicochemical adsorption using a selective adsorbent. This review …

 — The oxidative desulfurization process is depicted in a schematic diagram Biodesulfurization options for upgrading middle distillates of petroleum to ultra-low amounts of sulfur (a) BDS after HDS ...

 — Flue gas desulfurization gypsum (FGDG) is an industrial byproduct generated during the flue gas desulfurization process in coal-fired power plants. Flue gas desulfurization systems have been used to limit the release of sulfur dioxide from coal-fired power plants since the late 1960s, but in the past decade the production of FGDG has ...

 — 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 ...

 — The dry CFB, with a high flue gas desulfurization rate, was first successfully installed and operated in Munich in November 1984 [17].The desulfurization process of circulating fluidized bed desulfurization technology involves the injection of flue gas from the bottom of the fluidized bed through a Venturi tube.

Residue desulfurization is a high-pressure catalytic hydrotreating process. Chevron Lummus Global, a joint venture between Lummus Technology and Chevron U.S.A., Inc., offers several proven technologies for residuum desulfurization.. CLG's atmospheric residuum desulfurization (RDS) and vacuum residuum desulfurization (VRDS) …

 — 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 …

Since the world is moving toward green chemistry, a fuel desulfurization process driven by clean technology is of paramount significance in the field of environmental remediation. Among the novel desulfurization …

Desulfurization is removal of sulfur or sulfur derivative compounds commonly from flue gas or fuels. The most usually needed desulfurization is in natural gas and for coal, oil, and flue gas.