Desulfurization production process

US7144499B2

Desulfurization process Download PDF Info Publication number US7144499B2 US7144499B2 US10/723,870 US72387003A US7144499B2 US 7144499 B2 US7144499 B2 US 7144499B2 US 72387003 A US72387003 A US 72387003A US 7144499 B2 US ...

Flue gas desulphurization detailed process

 · 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 sulphur oxide emitting processes. 8. It is a control device that absorbs and react using the alkaline reagent to produce a solid compound. 9.

Petroleum Desulfurization – Chemical production and …

Process Economics Program Report 47A. This report covers current technology and costs for desulfurization of petroleum fractions ranging from naphtha to residuals.The scope of the current report was extended beyond that of Report 47 to include deep desulfurization and hydrocracking. The term deep desulfurization refers to the removal of 90 to ...

Introduction to the process of flue gas desulfurization

What is Desulphurization? - Definition from Corrosionpedia

Desulphurisation of gas

Gas desulphurisation is therefore an essential part of the biogas upgrading process. Besides the fact that H₂S is a very toxic gas and therefore very harmful to the environment, it is also a highly dangerous gas. The basic principle of the technologies DMT offers to desulfurize gas is the absorption of H2S into a liquid.

Oxidative processes of desulfurization of liquid fuels

Wenshuai Zhu. Huaming Li. A simple liquid–liquid extraction and catalytic oxidative desulfurization (ECODS) system composed of molybdic compound, 30% H2O2 and 1-butyl-3-methylimidazolium ...

Desulfurization process

R. Pedroso, An Update ofithe Wellman-EordElue Gas Desulfurization Process, EPA Pub. EPA-600/2-76-136a, May 1976. Additionally, there are a number of useful electrochemical reactions for desulfurization processes (185). Solar—thermal hydrogen from

Desulfurization | Biogas-Consult

Desulfurization. Anaerobic microbial degradation of organic substances in biogas facilities produces not only the principal components methane (CH4) and carbon dioxide (CO2), but also hydrogen sulfide (H2S). Among other things, the hydrogen sulfide concentration in the biogas is dependent on the substrates used, and can range from a few ppm in ...

Introduction to the process of flue gas desulfurization

 · Flue gas desulfurization (FGD) is an effective desulfurization method widely used in industrial industries. According to the form of sulfide absorbent and by-products, desulfurization technology can be divided into dry, semi-dry and wet. The dry desulfurization process mainly uses a solid absorbent to remove SO2 in the flue gas.

Desulfurization

Desulfurization. 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. [1] These processes are of great industrial and environmental ...

Desulphurisation

6.11.4.4 Process description of dry desulfurization. Dry desulfurization is precision desulfurization. The equipment''s fundamental principle of dry desulfurization is oxidizing the H 2 S to sulfur or sulfur oxides, which can be described as a dry oxidation process. After the concentration of H 2 S is desulfurized to <150 mg/m 3 by wet ...

US5358550A

desulfurization iron Prior art date 1992-10-26 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Fee Related

US4076607A

A process for coal desulfurization generates extremely low amounts of heat from microwave energy to induce thermochenical, in-situ, reactions to liberate sulfur in the form of stable gaseous species, such as H 2 S, COS and SO 2 . ... US4076607A US05/642,900 US64290075A US4076607A US 4076607 A US4076607 A US 4076607A US 64290075 A US64290075 A US …

Process for desulfurization of coal (Patent) | OSTI.GOV

Desulfurization and demineralization of coal utilizing the TRW Gravimelt Process results in two major process streams requiring solid-liquid separation. In the production of clean coal, the caustic and caustic-soluble reaction products are removed from the coal, in a sequence of steps involving the washing of coal-caustic cake with dilute aqueous caustic, dilute sulfuric acid, and …

Petroleum Desulfurization – Chemical production and …

Process Economics Program Report 47. This report is concerned with technology and costs for the desulfurization of petroleum stocks. Although the hydrodesulfurization of light and middle distillates such as gasoline, naphtha, kerosene, and gas oil is also evaluated, the emphasis here is on sulfur removal from the resid- ual fuel oil where there ...

Desulfurization Reaction

 · IEA Coal Research, in The Problems of Sulphur, 1989 Publisher Summary This chapter focuses on the current research on chemistry of desulfurization reactions.Squires et al., 1980, have determined the potential of oxidation techniques for the removal of organic sulphur from coal by subjecting model compounds to the oxydesulphurization conditions used in the …

Production of a Desulfurization Biocatalyst by Two‐Stage …

 · For the production of oil-desulfurizing biocatalyst, a two-stage fermentation strategy was adopted, in which the cell growth stage and desulfurization activity induction stage were separated. Sucrose was found to be the optimal carbon source for the growth of Gordonia nitidaCYKS1.CYKS1.

What is Desulphurization?

Desulfurization refers to the industrial process of removing sulfur from a mineral resource mixture such as crude oil. It predominantly involves a gas-purification industrial procedure used to remove hydrogen sulfide (H 2 S) and carbon dioxide (CO 2) from a given mineral resource. Desulphurization may also be known as gas sweetening or amine ...

Desulfurization with hydrogen production by BS process

For decontamination of SO 2 containing waste gases from industries such as ferrous and non-ferrous metal companies, desulfurization with hydrogen production by the reaction of Br 2 and SO 2 was proposed as bromine-sulfur (BS) process. In this process, SO 2 is fixed as H 2 SO 4 in the presence of Br 2 and H 2 O forming H 2 SO 4 and HBr. ...

A study of the desulfurization selectivity of a reductive and extractive desulfurization process …

 · When the sulfur content increases, some desulfurization processes may not produce high-quality gasoline. Most studies have investigated fuels with a …

THIOPAQ O&G Biodesulfurization System | Schlumberger

The process removes H 2 S from low-, medium-, and high-pressure streams in direct treat operations. It easily installs for indirect treating and runs downstream of amine, Claus, and membrane units for emissions cleanup and sulfur recovery. The THIOPAQ O&G system produces treated gas that meets a typical H 2 S outlet specification of 4 ppm or less.

Flue-gas desulfurization

Flue-gas desulfurization (FGD) is a set of technologies used to remove sulfur dioxide (SO 2) ... (calcium sulfite) to produce marketable CaSO 4-2H 2 O that can be of high enough quality to use in wallboard and other products. The process by which this CaSO 3 ...

US3759673A

COAL IS TREATED IN A REDUCING ATMOSPHERE IN A FLUID BED REACTOR TO PARTIALLY DEVOLATILIZE IT, REMOVE ALL MOISTURE, AND REMOVE SOME H2S AND SO2. THE THEN CHARRDD COAL IS TREATED IN A MULTI-STAGE CONTACTOR ...

Comparison of deep desulfurization methods in alumina production process …

 · Several methods of deep desulfurization in alumina production process were studied, and the costs of these methods were compared. It is found that most of the S2−removed by adding sodium nitrate or hydrogen peroxide in digestion process, and in this way the effect of S2− on alumina product quality is eliminated. However, the removal efficiency of S2O 3 2− in …

PPT

 · FLUE GAS DESULFURIZATION (FGD) GYPSUM PRODUCTION, PROCESSING AND DISPOSAL Presented By E. Cheri Miller Specialist, Fuel By-Products and Marketing Tennessee Valley Authority WHAT ARE FGD SCRUBBERS? FGD PRODUCTS • Many different products from the various FGD processes, primarily: • Lime/limestone force oxidized (LSFO) …

US7108779B1

A process for the production of low sulfur hydrocarbonaceous products. The hydrocarbon feedstocks are processed in integrated desulfurization zone, hydrocracking and hydrogenation zones to produce ultra low sulfur diesel, low sulfur naphtha products and …

Desulfurization

Of the two methods of sulfur capture in lead–acid battery recycling, the pyrometallurgical method is more common. In this process, sulfur-capture is accomplished in a two-stage process. Sulfur dioxide is first produced via a carbothermic reduction of PbSO 4 and the subsequent sulfur-capture is accomplished by scrubbing SO 2..

CA2381983A1

CA2381983A1 CA 2381983 CA2381983A CA2381983A1 CA 2381983 A1 CA2381983 A1 CA 2381983A1 CA 2381983 CA2381983 CA 2381983 CA …

US7314545B2

This invention is a method of purifying fuels containing organosulfur impurities. The fuel is oxidized with an organic hydroperoxide in the presence of an oxidation catalyst to form a sulfone product, followed by extraction of the sulfone product by solid-liquid or liquid ...

Desulfurization Gypsum Production Line

Desulfurization Gypsum Treatment Process---Process Selection On the basis of different capacities and user, we prepare two kinds of production process for our customers. The first is one-step production process which is based on boiling kiln. This process