Sulfur removal by catalytic distillation

Mineral oils: processes and products – Refining – Sulfur removal

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Details

208208R, 208238, 208220, 208245, 208232, C10G 2920

Patent

active

058634193

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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patent: 5243115 (1993-09-01), Smith, Jr. et al.
patent: 5321181 (1994-06-01), Smith, Jr. et al.
patent: 5336820 (1994-08-01), Owen et al.
patent: 5510568 (1996-04-01), Hearn

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