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Title:
AROMATICS SEPARATION FROM PETROLEUM STREAMS
Document Type and Number:
WIPO Patent Application WO2001083642
Kind Code:
B1
Abstract:
A process for separating a feed mixture comprising at least one aromatic hydrocarbon and at least one non-aromatic hydrocarbon by extractive distillation (ED) utilizing a solvent mixture comprising sulfolane and at least one co-solvent. The co-solvent is an alkyl sulfolane having from 4 to 8 carbon atoms per molecule. The solvent mixture is added to the top of the ED column, and the feed mixture is added at a point on the ED column that is lower than the point where the solvent mixture is added. Extractive distillation is performed, and the aromatic and non-aromatic hydrocarbons are separated.

Inventors:
LEE FU-MING
Application Number:
PCT/US2001/013411
Publication Date:
April 11, 2002
Filing Date:
April 27, 2001
Export Citation:
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Assignee:
GTC TECHNOLOGY CORP (US)
International Classes:
C10G7/08; (IPC1-7): C10G7/08
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