Desulfurization of light olefins

Details Desulfurization of light olefins Desulfurization of light olefins

1991-08-08

1992-09-08

McFarlane, Anthony

Chemistry of hydrocarbon compounds

Purification, separation, or recovery

By addition of extraneous agent, e.g., solvent, etc.

585864, 423243, 4232452, C07C 700, C01B 1700

Patent

active

051460424

ABSTRACT:
This invention provides a simple process for the removal of organo sulfide contaminants from lower C.sub.2 to C.sub.4 olefin feedstocks comprising washing the lower olefin containing the sulfide contaminant with a liquid C.sub.6 or higher olefin which is a solvent for the sulfur contaminant. The washing process tends to extract a substantial quantity of the sulfur contaminant from the lower olefin. The lower olefin is then separated from the higher olefin solution by evaporation or fractional distillation. The process provides for removal of greater than 90% by weight of organic sulfides present in lower olefin feedstocks.

REFERENCES:
patent: 2577617 (1951-12-01), Hudig
patent: 3315003 (1967-04-01), Khelghatian
patent: 4444987 (1984-04-01), Brownell et al.
patent: 4835338 (1989-05-01), Liu

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