Sulfur removal by catalytic distillation
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United States of America Patent
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Jan 26, 1999
Issued Date -
N/A
app pub date -
Aug 18, 1997
filing date -
Jan 14, 1997
priority date (Note) -
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Abstract
A product of reduced sulfur content is produced from a feedstock which is comprised of a mixture of hydrocarbons and contains organic sulfur compounds as unwanted impurities. The process comprises converting at least a portion of the sulfur-containing impurities to sulfur-containing products of higher boiling point by treatment with an alkylating agent in the presence of an acid catalyst and removing at least a portion of these higher boiling products by fractional distillation. The process can be carried out in a distillation column reactor wherein the acid catalyzed reaction and fractional distillation are carried out simultaneously. Suitable alkylating agents include alcohols and olefins.
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