Olefinic feedstock treatment processes

Details Olefinic feedstock treatment processes Olefinic feedstock treatment processes

2011-03-01

2011-03-01

Dang, Thuan Dinh (Department: 1771)

Chemistry of hydrocarbon compounds

Purification, separation, or recovery

By contact with solid sorbent

C585S825000, C585S826000, C585S483000

Reexamination Certificate

active

07897829

ABSTRACT:
Aromatic by-products are sorbed from mono-olefin-containing feedstocks of olefins having from about 6 to 22 carbon atoms per molecule that contain aromatic by-products having from 7 to 22 carbon atoms per molecule. A benzene-containing regenerant displaces and desorbs the aromatic by-products from the sorbent and a regeneration effluent is provided. The regeneration effluent is treated in a regeneration effluent distillation system to provide a benzene-rich stream and an aromatic by-products-containing stream. The latter is subjected to benzene-forming conditions and recycled to the regeneration effluent distillation system where benzene is recovered.

REFERENCES:
patent: 5300715 (1994-04-01), Vora

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