Title:
SULFUR REMOVAL PROCESS
Document Type and Number:
WIPO Patent Application WO2003035800
Kind Code:
A3
Abstract:
A product of reduced sulfur content is produced from an olefin-containing hydrocarbon feedstock which includes sulfur-containing impurities. The feedstock is contacted with an olefin-modification catalyst in a reaction zone under conditions which are effective to produce an intermediate product which has a reduced amount of olefinic unsaturation relative to that of the feedstock as measured by bromine number. The intemediate product is then separated into at least three fractions of different volatility, and the highest boiling third fraction is contacted with a hydrodesulfurization catalyst in the presence of hydrogen under conditions which are effective to convert at least a portion of its sulfur-containing impurities to hydrogen sulfide. The intermediate boiling fraction is contacted with a selective hydrotreating catalyst in the presence of hydrogen under conditions which are effective to convert at least a portion of its sulfur-containing impurities to hydrogen sulfide.
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Inventors:
MCDANIEL STACEY
BURNETT PTOSHIA A
BURNETT PTOSHIA A
Application Number:
PCT/US2002/033888
Publication Date:
October 23, 2003
Filing Date:
October 23, 2002
Export Citation:
Assignee:
BP CORP NORTH AMERICA INC (US)
International Classes:
C10G29/20; C10G65/00; C10G65/16; C10G69/12; (IPC1-7): C10G69/12; C10G29/20
Domestic Patent References:
| WO2001053432A1 | 2001-07-26 | |||
| WO2001053433A1 | 2001-07-26 | |||
| WO1998014535A1 | 1998-04-09 |
Foreign References:
| US6059962A | 2000-05-09 |
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