Desulfurization Process

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

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 explores three flue gas desulfurization process flows and associated chemistries as applied to coal-fired power plants.

Fuel gas desulfurization is an important technological step toward achieving environmental neutrality in industrial production. The presence of sulfur compounds in fuel not only significantly increases the rate of corrosion processes, but also increases the amount of sulfur oxides in flue gases. Adsorption technologies are actively used to purify fuel. Materials …

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 …

Oxidative desulfurization (ODS) has emerged as a prominent technique for the removal of sulfur compounds from fuels, aiming to comply with stringent environmental regulations and minimize sulfur ...

Biocatalytic Desulfurization. James G. Speight, Nour Shafik El-Gendy, in Introduction to Petroleum Biotechnology, 2018 2.3 Oxidative Desulfurization. Oxidative desulfurization is an innovative technology that can be used to reduce the cost of producing ultralow sulfur diesel (ULSD) and is a process during which refractory organosulfur compounds are oxidized to …

Fe/activated carbon desulfurizer is prepared by precipitation method using activated carbon as carrier to remove H 2 S. The desulfurizer before and after desulfurization was characterized by XRD, XPS, SEM and N 2 adsorption–desorption. The results show that the active component of desulfurizer is Fe 2 O 3, which reacts with H 2 S to form FeS, elemental sulfur and Fe 2 (SO 4) 3.

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,...

Recently, the double-alkali desulfurization process is widely applied in cleaning of flue gas from coal-fired boiler and industrial furnace with different scale due to various advantages, such as high desulfurization efficiency and operation reliability, low engineering investment and operation cost [10], [11].

The current industrial method for removal of sulfur from fuels is hydrodesulfurization (HDS), which is a high temperature, high pressure catalytic process. This makes HDS a very costly …

Magnesia FGD is an appealing process especially for small and medium industrial boilers due to its high desulfurization capacity, process simplicity, small cost, and low energy consumption. Magnesium sulfite produced from this method can be easily regenerated by heat decomposition between 900 and 1000 °C, similar to the regenerative BAS method.

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.

Desulfurization is the removal of sulfur or sulfur compounds (as from coal or flue gas), mostly from fuels. The most commonly required desulfurization process is in natural gas, …

The adsorbents used in the desulfurization process have reported low adsorption capacities, such as 0.123 moles sulfur per moles of metal for a vague transition metal …

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, (11), 1607–1615. doi: 10.2355/isijinternational.45.1607

Magnesium desulfurization is a wet flue gas desulfurization (WFGD) technology widely used in China, however, the low oxidation rate of magnesium sulfite (MgSO 3), a byproduct of WFGD, causes the subsequent oxidation and crystallization process to require amount energy.Here, we prepared a cobalt-based nitrogen-doped porous carbon catalyst (Co@NC) …

A promising alternative to HDS is the extractive desulfurization (EDS) process due to its mild operating conditions. Deep eutectic solvents (DESs) formed from a eutectic mixture of /Brønsted acids and bases have been prominent in research over the last few years. This review aims to discuss the advantages of EDS using DESs over other ...

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 …

Review of adsorptive desulfurization process: Overview of the non-carbonaceous materials, mechanism and synthesis strategies. Saheed A. Ganiyu, Saheed A. Lateef, in Fuel, 2021 2.4 Hydrodesulfurization (HDS). By far the most popular desulfurization method used today is hydrodesulfurization of fuel where the fuel is treated in hydrogen stream to reduce the …

Desulfurization (HDS) is a very important process for upgrading these end products through the use of appropriate catalysts. Essentially, metal sulfide edges catalyze the desulfurization of hydrogen gas under high temperature and pressure conditions.

Currently, desulfurization occurs in a process called Hydro-Desulfurization that uses hydrogen gas, high temperatures (300 to 400 degrees Celsius) and high pressures (30 to 130 atmospheres) to modify sulfur bearing compounds so they can be removed. However, this process is limited to large refineries owned by companies such as BP and Shell as ...

Borsody describes the mechanics of sulfur removal: "The desulfurization process takes place in an iron transfer ladle. The primary magnesium reagent is injected in conjunction with a secondary reagent, usually lime, into the hot metal with lances under a gases stream. The lance is a pipe surrounded by several inches of protective ceramics.

What is Flue Gas Desulfurization Gypsum? Flue gas desulfurization gypsum (FGDG) is an industrial byproduct generated during the flue gas desulfurization process in coal-fired power plants. Flue gas desulfurization …

Extraction is a crucial step in the desulfurization process. The selection of an appropriate solvent can be critical in an ODS reaction because it creates a phase in which multiple reactants interact with each other to the greatest extent possible. Technology involving ODS reaction is mostly biphasic comprising polar and non-polar solvents.

EPA-CICA Fact Sheet Flue Gas Desulfurization1 Name of Technology: Flue Gas Desulfurization (FGD) - Wet, Spray Dry, and Dry Scrubbers ... The process forms a dry waste product which is collected with a standard particulate matter (PM) collection device such as a baghouse or ESP. The wa ste product can be disposed, sold as a byproduct

During the desulfurization process of crumb rubber, the effects of desulfurization process variables including desulfurizer type, desulfurizer content, and desulfurization mixing temperature and time were considered, and then the physical properties of modified asphalt were tested. The test results showed that after mixing crumb rubber powder ...

The efficiency of this process ranges from 85 to 95% due to different operational parameters. The semi-dry desulfurization process consists of injecting a pulverized suspension of slaked lime into the flue gas flowing through the reactor, where calcium hydroxide reacts with SO 2 in flue gas. The temperature of the process is 15–20°C higher ...

Theoretical investigations on the purification of petroleum using desulfurization process: Analysis and optimization of process. Author links open overlay panel Gen Li a b 1, Cheng Fu c 1, Yong Yuan d, Bin Huang e, Keliang Wang a b. Show more. Add to Mendeley. Share. ... The process is removal of sulfur from petroleum by adsorption onto the ...

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 …