The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 21, 2012
Filed:
Dec. 29, 2008
Applicants:
Gary A. Sawyer, Media, PA (US);
Michael G. Axelrod, Newtown Square, PA (US);
Inventors:
Gary A. Sawyer, Media, PA (US);
Michael G. Axelrod, Newtown Square, PA (US);
Assignee:
Lyondell Chemical Technology, L.P., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 6/04 (2006.01); C07C 5/27 (2006.01);
U.S. Cl.
CPC ...
Abstract
A propylene production process is disclosed. The process comprises (a) reacting a feed stream comprising isobutene in the presence of a skeletal isomerization catalyst to obtain an isomerized stream comprising Colefins; and (b) reacting the isomerized stream with ethylene in the presence of a metathesis catalyst to form a metathesis product stream comprising propylene, Colefins, and C+ olefins. The metathesis reaction pressure is equal to or lower than that of the skeletal isomerization.