Document Type and Number:
Japanese Patent JPH0323588
Kind Code:
B2
Abstract:
A continuous process is disclosed for removing mercaptans from highly olefinic feed streams (1) by extraction with a regenerated aqueous alkaline solution (4). The aqueous extract solution is preferably regenerated (13) by oxidation of extracted mercaptans to disulfides. The invention employs an extraction step (6, 7, 8) performed on the aqueous extract solution (5) to limit the passage of olefins or acetylenes into the mercaptan conversion zone (13) and preferably an extraction step (20, 21, 22, 23) performed on the regenerated solution to limit the passage of mercaptans and/or oxygenates into the primary extraction zone (2).
Inventors:
TOMASU EI BERACHITAATO
Application Number:
JP30761286A
Publication Date:
March 29, 1991
Filing Date:
December 23, 1986
Export Citation:
Assignee:
UOP INC
International Classes:
B01D11/04; C07C7/12; C10G19/02; C10G19/08; C10G27/04; C10G53/12
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