Monoolefin/paraffin separation by selective absorption

Details Monoolefin/paraffin separation by selective absorption Monoolefin/paraffin separation by selective absorption

1992-06-05

1993-04-13

McFarlane, Anthony

Chemistry of hydrocarbon compounds

Purification, separation, or recovery

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

585845, 585856, 585864, 203 84, 4232451, 55 84, C07C 7148, C07C 717, B01D 300, B01D 4700

Patent

active

052025217

ABSTRACT:
A selective absorption process for separating C.sub.2 -C.sub.4 alkenes (in particular ethylene) from C.sub.1 -C.sub.5 alkanes with a liquid extractant comprising dissolved copper(I) compound(s), in particular dissolved Cu(I) hydrocarbonsulfonate(s), is carried out in a one-column operation, wherein an overhead product is withdrawn which contains alkene(s) at a lower concentration than the feed, a side product is withdrawn which contains alkene(s) at a higher concentration than the feed, and a bottoms stream is withdrawn which contains primarily the liquid extractant.

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patent: 4400564 (1983-08-01), Johnson et al.
patent: 4504692 (1985-03-01), Arakawa et al.
patent: 4639308 (1987-01-01), Lee

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