February 7, 2011

CAS databases provide millions of journal article references from more than 10,000 major scientific journals worldwide, patent and patent family references from 61 patent authorities around the world, and other reputable web sources.

The following patent record is from the CAplusSM database.

CAPLUS COPYRIGHT 2011 ACS

Patent Number: US 7868216
Title: Production of propylene using the dimerization of ethylene in 1-butene, hydroisomerization in 2-butene, and metathesis by ethylene
Inventor(s): Chodorge, Jean Alain; Dupraz, Christiana
Patent Assignee(s): Institut Francais du Petrole, Fr.
Source: Fr. Demande, 26 pp. CODEN: FRXXBL
Language: French
Abstract:

A process of production of propylene of high purity includes (1) a stage of dimerization of ethylene in 1-butene, (2) a stage of hydroisomerization of 1-butene in 2-butene, and (3) a stage of metathesis of 2-butene by ethylene. To increase the production of propylene, the process can use an addnl. source of butenes such as a C4 hydrocarbon or catalytic cracking units.

View the full-text patent from USPTO.

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