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Title: Task 4.7 -- Diesel fuel desulfurization. Semi-annual report, January 1--June 30, 1995

Abstract

Reductions in the maximum permissible sulfur content of diesel fuel to less than 0.05 wt% will require deep desulfurization technologies to meet these standards. In some refineries, a new hydrogenation catalyst may be required for diesel fuel production. Some of the major components of diesel fuel are dibenzothiophenes and its alkyl derivatives. These components are desulfurized by the Rhodococcus rhodocrous IGTS8 enzymes. But when they are highly diluted with other hydrocarbons in the diesel fuel, will there be enough specificity for their absorption and degradation by the enzyme systems? The extent to which a diesel fuel or middle distillate feed can be desulfurized by desulfurization enzymes will be determined. In addition, the effectiveness of molybdenum sulfide catalysts in removing sulfur from the middle distillate cut will be determined. The catalyst preparation involves creation of the molybdenum sulfide in a highly dispersed form essentially between the layers of a hydrotalcite material, which is then dissolved away to expose the active sites.

Authors:
Publication Date:
Research Org.:
Univ. of North Dakota, Energy and Environmental Research Center, Grand Forks, ND (United States)
Sponsoring Org.:
USDOE Assistant Secretary for Fossil Energy, Washington, DC (United States)
OSTI Identifier:
650114
Report Number(s):
DOE/MC/30097-5571
ON: DE97002218; TRN: AHC2DT04%%25
DOE Contract Number:  
FC21-93MC30097
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: Aug 1997
Country of Publication:
United States
Language:
English
Subject:
02 PETROLEUM; PROGRESS REPORT; DIESEL FUELS; PETROLEUM DISTILLATES; DESULFURIZATION; BIODEGRADATION; RHODOCOCCUS; ENZYMES; MOLYBDENUM SULFIDES; CATALYTIC EFFECTS; CHEMICAL PREPARATION

Citation Formats

Olson, E.S. Task 4.7 -- Diesel fuel desulfurization. Semi-annual report, January 1--June 30, 1995. United States: N. p., 1997. Web. doi:10.2172/650114.
Olson, E.S. Task 4.7 -- Diesel fuel desulfurization. Semi-annual report, January 1--June 30, 1995. United States. doi:10.2172/650114.
Olson, E.S. Fri . "Task 4.7 -- Diesel fuel desulfurization. Semi-annual report, January 1--June 30, 1995". United States. doi:10.2172/650114. https://www.osti.gov/servlets/purl/650114.
@article{osti_650114,
title = {Task 4.7 -- Diesel fuel desulfurization. Semi-annual report, January 1--June 30, 1995},
author = {Olson, E.S.},
abstractNote = {Reductions in the maximum permissible sulfur content of diesel fuel to less than 0.05 wt% will require deep desulfurization technologies to meet these standards. In some refineries, a new hydrogenation catalyst may be required for diesel fuel production. Some of the major components of diesel fuel are dibenzothiophenes and its alkyl derivatives. These components are desulfurized by the Rhodococcus rhodocrous IGTS8 enzymes. But when they are highly diluted with other hydrocarbons in the diesel fuel, will there be enough specificity for their absorption and degradation by the enzyme systems? The extent to which a diesel fuel or middle distillate feed can be desulfurized by desulfurization enzymes will be determined. In addition, the effectiveness of molybdenum sulfide catalysts in removing sulfur from the middle distillate cut will be determined. The catalyst preparation involves creation of the molybdenum sulfide in a highly dispersed form essentially between the layers of a hydrotalcite material, which is then dissolved away to expose the active sites.},
doi = {10.2172/650114},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Aug 01 00:00:00 EDT 1997},
month = {Fri Aug 01 00:00:00 EDT 1997}
}

Technical Report:

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