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:
Mar. 12, 2013
Filed:
Oct. 13, 2010
Steven T. Coleman, Humble, TX (US);
Gary A. Sawyer, Media, PA (US);
Robert S. Bridges, Friendswood, TX (US);
Steven T. Coleman, Humble, TX (US);
Gary A. Sawyer, Media, PA (US);
Robert S. Bridges, Friendswood, TX (US);
Equistar Chemicals, LP, Houston, TX (US);
Lyondell Chemical Technology, L.P., Houston, TX (US);
Abstract
A process for producing propylene and 1-butene is disclosed. The process comprises dimerizing ethylene in the presence of a dimerization catalyst to produce a dimerization mixture comprising 1-butene and 2-butenes. The dimerization mixture is distilled to produce a 1-butene stream containing 1-butene and ethylene, a 2-butenes stream, and a heavy stream. The 2-butenes stream is reacted with ethylene in the presence of a metathesis catalyst to produce a metathesis mixture comprising propylene, ethylene, and 2-butenes. Propylene is separated from the metathesis mixture.