Continuous process for mercaptan extraction from a highly...

Details Continuous process for mercaptan extraction from a highly... Continuous process for mercaptan extraction from a highly...

C - Chemistry, Metallurgy

07

C

260/717.1

C07C 7/10 (2006.01) C07C 11/00 (2006.01) C10G 19/02 (2006.01) C10G 19/08 (2006.01)

Patent

CA 1274551

"CONTINUOUS PROCESS FOR MERCAPTAN EXTRACTION FROM A HIGHLY OLEFINIC FEED STREAM" ABSTRACT A continuous process is disclosed for removing mercap- tans from highly olefinic feed streams by extraction with a regenerated aqueous alkaline solution. The aqueous extract solution is preferably regenerated by oxidation of extracted mercaptans to disulfides. The invention preferably employs two extraction steps performed on the aqueous extract solution and on the regenerated solution to limit the passage of olefins or acetylenes into the mercaptan conversion zone and to limit the passage of mercaptans and/or oxygenates into the primary extraction zone.

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