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Desulfurization of steel [SubsTech]

Desulfurization may be effectively conducted in the reducing slag stage of the steel making process in Electric-arc furnace. At this stage the oxidizing slag is removed and then lime flux is added to form basic slag with high CaO content. Deep desulfurization by slags may be achieved in ladle:

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An overview of new approaches to deep ... - ScienceDirect

1. Introduction. This review discusses fuel specification issues and the problems of sulfur reduction in highway and non-road fuels and presents an overview of new approaches to ultra-deep desulfurization of refinery streams for ultra-clean (ultra-low-sulfur) gasoline, diesel fuels and jet fuels.

Catalyzing Commercialization: Ultra-Deep ... - AIChE

Researchers at the startup have developed two catalytic adsorbents — AdE-Sorb and AdE-Sulfur — for ultra-deep desulfurization of diesel. Ultra-deep desulfurization reduces the sulfur content in diesel to less than 15 ppm. These adsorbents consist of clusters of catalytic metals, such as Ni, supported on zinc oxide (ZnO) nanowires.

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Deep Desulfurization Guardbeds for Hydrocarbon Processing ...

Mar 27, 2017 · Traditionally sulfur removal from hydrocarbon feeds is carried out in a two-step process: hydrodesulfurization (HDS) of the organic sulfur compounds and subsequent hydrogen sulfide [H 2 S] removal. The reasons to remove the sulfur are numerous: to reduce the sulfur dioxide emissions that result from using the end product; to prevent sulfur, even in extremely low concentrations, from .

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Desulfurization: CATALYSIS: Putting Technology Readiness ...

However, there is a limit to the cost reduction that can be achieved as hydro-desulfurization (HDS) chemistry requires elevated temperature and pressure for deep desulfurization and, of course, consumes hydrogen in the process. Hydro-desulfurization also cannot readily achieve the very low sulfur levels envisaged for future "zero sulfur" fuels.

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Adsorption Process of Sulfur Removal from Diesel Oil Using ...

adsorption desulfurization process. Adsorption-desulfurization process of diesel fuel was proposed and examined. Local diesel fuel of 410 ppm sulfur content was treated with commercial activated carbon and carbonized date palm kernel powder at room temperature in batch work. The contact time were examined and chosen.

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Desulfurization of steel [SubsTech]

Desulfurization may be effectively conducted in the reducing slag stage of the steel making process in Electric-arc furnace. At this stage the oxidizing slag is removed and then lime flux is added to form basic slag with high CaO content. Deep desulfurization by slags may be achieved in ladle:

Get Price
OSTI.GOV Technical Report: DEEP DESULFURIZATION OF DIESEL ...

Sep 01, 2001 · In order to reduce the sulfur level in liquid hydrocarbon fuels for environmental protection and fuel cell applications, deep desulfurization of a model diesel fuel and a real diesel fuel was conducted by our SARS (selective adsorption for removing sulfur) process using the adsorbent A-2.

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A Novel Vapor-Phase Process For Deep Desulfurization of ...

A NOVEL VAPOR-PHASE PROCESS FOR DEEP DESULFURIZATION OF NAPHTHA/DIESEL FINAL REPORT DOE Cooperative Agreement No. DE-FC26-01BC15282 Period .

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A Deep Desulfurization Process for Light Oil by ...

A novel deep desulfurization process of light oil, effected by a combination of photochemical reaction and organic two-phase liquid−liquid extraction, has been investigated. The process is comprised of two stages. The first consists of the transfer of the sulfur-containing compounds from the light oil to an aqueous-soluble polar solvent. This is then followed by the photooxidation and ...

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Deep Desulfurization of Diesel Fuels by a Novel Integrated ...

Deep Desulfurization of Diesel Fuels by a Novel Integrated Approach Final Technical Progress Report ... design of the novel PSU-SARS process for deep desulfurization of diesel fuel Three types of adsorbents, the metal-chloride-based adsorbents, the activated ... Deep desulfurization of diesel fuels is receiving increasing attention in the research

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Deep desulfurization of fuels based on ... - ScienceDirect

Jul 15, 2019 · In recent years, desulfurization of fuels has become a hot issue for the serious environmental pollution by organic sulfides. Compared with the traditional desulfurization process of fuels, this proposed process of deep desulfurization based on deep eutectic theory has many advantages, such as simple and environmental friendly process, cheap and easily obtained raw .

  • Author: Zhuo Li, Yingna Cui, Changping Li, Yongming ShenGet Price
US5510265A - stage process for deep desulfurization ...

A method for the deep desulfurization of a liquid fossil fuel containing organic sulfur comprising aromatic sulfur-bearing heterocycles is described, wherein the fossil fuel is (a) subjected to hydrodesulfurization or microbial desulfurization, (b) contacted with a biocatalyst in an aqueous medium in an amount and under conditions sufficient for the conversion of aromatic sulfur-bearing ...

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Deep desulfurization of fuels based on oxidation ...

Deep desulfurization of fuels based on oxidation/extraction process with acidic deep eutectic solvents Article in Green Chemistry 17(9) · June 2015 with 83 Reads DOI: 10.1039/C5GC00709G

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US5510265A - stage process for deep desulfurization ...

A method for the deep desulfurization of a liquid fossil fuel containing organic sulfur comprising aromatic sulfur-bearing heterocycles is described, wherein the fossil fuel is (a) subjected to hydrodesulfurization or microbial desulfurization, (b) contacted with a biocatalyst in an aqueous medium in an amount and under conditions sufficient for the conversion of aromatic sulfur-bearing ...

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Desulfurization of heavy oil | SpringerLink

Shiraishi Y, Hirai T, Komasawa I (2001a) A deep desulfurization process for light oil by photochemical reaction in an organic two-phase liquid–liquid extraction system. Ind Eng Chem Res 37:203–211 CrossRef Google Scholar. Shiraishi Y, Taki Y, Hirai T, Komasawa I (2001b) A novel desulfurization process for fuel oils based on the formation ...

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CDTECH gasoline desulfurization technology selected by ...

ple CDHydro and CDHDS units which are designed to process approximately 275,000 barrels per stream day (BPSD) of fluid catalytic cracked gasoline feedstock will be constructed at the refineries. The process units will provide treatment levels ranging between 90% and 99% overall desulfurization.

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Oxidative Processes of Desulfurization of Liquid Fuels

deep desulfurization of light oil. This desulfurization process includes two stages: (i), oxidation in a first step; and (ii), liquid extraction at the end. It is evident that the greatest advantages of the ODS process are low reaction temperature and pressure, and that expensive hydrogen is not used in the process.

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A Non-catalytic Deep Desulphurization Process using ...

Recently, a non-catalytic process for deep desulfurization of fuels employing hydrodynamic cavitation with vortex diode for generating vortex flow for cavitation was reported [27] with a very high ...

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Hydrodesulfurization - Wikipedia