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Synchronous Desulfurization and Desilication of Low-Grade ...

The desulfurization reaction involving direct electron transfer from potassium ferrocyanide, K4[Fe(CN)6], successfully removed organic sulfur from a subbituminous coal. The temperature variation of desulfurization revealed that increase of temperature enhanced the level of sulfur removal. Moreover, the desulfurization reaction was found to be dependent on the concentration of K4[Fe(CN)6 ...

Desulfurization and Sulfur Processing

Currently, these sulfur species end up as sources of sulfur during processing and in final products. MATHESON and SulfaTrapâ„¢ desulfurization products are capable of removing the sulfur species in either gas or liquid phase hydrocarbons. We will describe the results of treating a range of feed-stocks with different compositions (e.g ...

Residuum Desulfurization | Lummus Technology

In the process of desulfurization, the sulfur containing pollutants are transformed into sulfides and H2S by biological reduction, and the elemental sulfur can be removed via the process of biological oxidation. Merox Sweetening Process Merox sweetening processes are reserved for heavier hydrocarbons such as kerosene, aviation fuels, and diesel.

Desulfurization - Hydrocarbon Processing

desulfurization and sulfur processingJJG Construction. The solid desulfurization the desulfurization agent used include iron (DRI) activated carbon molecular sieves etc. because of their low rates of sulfur adsorption regeneration and replacement and higher cost problems desulfurizing agent generally used for low H2S content small-scale processing

desulfurization and sulfur processing

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) technologies produce low sulfur fuel oil or feedstock for residuum ...

The Performance and Microbial Communities of ...

The same adsorbent exhibited a sulfur adsorption capacity of about 4.5 mg/g for the real JP-8 jet fuel containing about 750 ppmw sulfur. Desulfurization of MJF under flow conditions at 80 °C ...

Deep desulfurization and processing scheme of mixing C4 in ...

A process for the desulfurization of hydrocarbonaceous oil wherein the hydrocarbonaceous oil is contacted with a hydrodesulfurization catalyst in a hydrodesulfurization reaction zone to reduce the sulfur level to a relatively low level and then contacting the resulting hydrocarbonaceous stream from the hydrodesulfurization zone with an oxidizing agent to convert the residual, low level of ...

Refinery Desulfurization Of High Sulfur Fuel Demolishes ...

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 option for deep desulfurization. Moreover, HDS is not effective for removing heterocyclic sulfur compounds such as dibenzothiophene (DBT) and its derivatives, especially 4,6-dimethyldibenzothiophene (4,6-DMDBT).

Sulfur in Petroleum: Petroleum Desulfurization Techniques ...

Combining gasoline mixing components production and deep desulfurization of C4, four processing schemes are presented and compared. Considering the facts of investment, whole energy preservation and product market supply, two f the four processing schemes are recommended.

Tecnosulfur | Desulfurization Process, dephosphorization ...

Process for desulfurization of coal (Patent) OSTI.GOV. @article{osti_, title = {Process for desulfurization of coal}, author = {Ray, A B}, abstractNote = {Coal is oxidized by nox in the presence of a liquid in which nox is soluble. Oxidized sulfur species are removed by …

Desulfurization of Organic Sulfur from a Subbituminous ...

Sulfur in Petroleum: Petroleum Desulfurization Techniques: 10.4018/.ch001: This chapter describes the occurrence of organosulfur compounds in petroleum, their detrimental effects and various techniques for removal of these compounds.

desulfurization and sulfur processing

Environment & Safety / Process Optimization / Project Management / Refining / Desulfurization / Engineering & Design / Environment / Gasoline / Greenhouse Gases / Hydrotreating / Loss Prevention / Octane / Products / Sulfur / Asia/Pacific

Residue Desulfurization | Lummus Technology

Fixed-bed residuum desulfurization technologies—RDS for atmospheric residuum and VRDS for vacuum residuum—provide a short, economical process path to higher-value products from difficult feeds. These hydrogen-efficient processes sufficiently saturate products so that further processing in conversion units is greatly enhanced, ultimately ...

Hydrodesulfurization - Wikipedia

May 22, 2020· Sophisticated refiners upgraded their desulfurization capacity, enabling them to buy the high sulfur product to process it into the low sulfur product. On Jan. 29, Rustin Edwards, head of fuel ...

An evaluation of desulfurization technologies for sulfur ...

Process for desulfurization of coal (Patent) OSTI.GOV. @article{osti_, title = {Process for desulfurization of coal}, author = {Ray, A B}, abstractNote = {Coal is oxidized by nox in the presence of a liquid in which nox is soluble. Oxidized sulfur species are removed by …

Sulfur removal from crude oil and hydrocarbons - RCE

Desulfurization Wastewater Treatment Block Flow and Features ... In conventional process, sodium carbonate is added in the coagulating sedimentation tank on the second stage, causing scaling of calcium carbonate. ... is adopted. Furthermore, concurrently with nitration reaction, treatment of Hard degradable COD can be done by using sulfur ...

Trail of Sulfur during the Desulfurization via Reactive ...

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 option for deep desulfurization. Moreover, HDS is not effective for removing heterocyclic sulfur compounds such as dibenzothiophene (DBT) and its derivatives, especially 4,6-dimethyldibenzothiophene (4,6-DMDBT).

Desulfurization of heavy oil | SpringerLink

The present research studied a batch adsorption desulfurization process for diesel fuel containing 580ppm sulfur, based on physical adsorption of refractory sulfur compounds on activated carbon (AC). The effects of time, temperature, diesel to AC ratio, AC particle size, mixing velocity, and initial sulfur concentration in commercial diesel fuel on the desulfurization efficiency were studied.

Sulfur removal from crude oil and hydrocarbons - RCE

The biodegradation-electron transfer with sulfur metabolism integrated (BESI ®) process was used for the treatment of real flue gas desulfurization wastewater.The BESI ® process consists of an anaerobic activated sludge reactor, an anoxic activated sludge reactor, and an aerobic bio-film reactor. The performance of the integrated process was evaluated by the removal efficiencies of organics ...

(PDF) Adsorptive Desulfurization of Liquefied Petroleum ...

May 29, 2020· The phase transition during desulfurization process on Ni/ZnO was studied by in-situ XRD and STEM-EDS technology, in order to acquire direct evidence of S-transfer phenomenon between Ni and ZnO. As a result, a comprehensive overview of RADS mechanism, initiating with hydrogenative desulfurization followed by sulfur absorption and transfer, was ...

Desulfurization of high sulfur fine coal using a novel ...

Sulfur deficiency has been recognized as a limiting factor for crop production in many regions of the world. A 120-day incubation experiment was conducted to assess the effect of the applied waste elemental sulfur on sulfur bioavailability in soil. Four doses of sulfur were applied: 10, 20, 30 and 60 mg S kg−1 dry matter (d.m.) of soil. In order to assess the effect of soil pH adjustment ...

USB1 - Process for the desulfurization of a ...

A method and apparatus for processing sulfur-containing material derived from sulfur-containing, carbon-containing fuel or gaseous combustion product of sulfur-containing, carbon-containing fuel. A calcium sulfide-containing mixture derived from the source is provided by reacting sulfur-containing material in the source with a calcium-containing material so as to produce the calcium sulfide ...

An evaluation of desulfurization technologies for sulfur ...

desulfurization and sulfur processingJJG Construction. The solid desulfurization the desulfurization agent used include iron (DRI) activated carbon molecular sieves etc. because of their low rates of sulfur adsorption regeneration and replacement and higher cost problems desulfurizing agent generally used for low H2S content small-scale processing

[PDF] Desulfurization and Kinetic Study of Diesel Fuel by ...

Recovery of sulfur source is an important goal of industrialization regeneration for hot coal gas desulfurization sorbent. The different sulfide forms of sulfur produced in regeneration atmosphere and the method for recovering of sulfur source are discussed in this paper. The regeneration exhausted gas of high temperature desulfurization sorbent mainly has several forms of sulfides: sulfur ...

Desulfurization - Hydrocarbon Processing

A process for the desulfurization of hydrocarbonaceous oil wherein the hydrocarbonaceous oil is contacted with a hydrodesulfurization catalyst in a hydrodesulfurization reaction zone to reduce the sulfur level to a relatively low level and then contacting the resulting hydrocarbonaceous stream from the hydrodesulfurization zone with an oxidizing agent to convert the residual, low level of ...