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:
May. 22, 2007
Filed:
Oct. 27, 2004
Applicants:
Gary G. Podrebarac, Houston, TX (US);
John R. Adams, Houston, TX (US);
Arvids Judzis, Houston, TX (US);
Inventors:
Gary G. Podrebarac, Houston, TX (US);
John R. Adams, Houston, TX (US);
Arvids Judzis, Houston, TX (US);
Assignee:
Catalytic Distillation Technologies, Pasadena, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G07C 1/00 (2006.01); G07C 6/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process for the production of propylene from the metathesis of ethylene and 2-butene is disclosed wherein a mixed Cstream is first treated to enrich and separate the 2-butene from 1-butene and isobutene by isomerization of 1-butene and concurrent fractional distillation of the 2-butene and isobutene to provide the 2-butene feed the metathesis with ethylene. In addition the mixed Cstream may be treated to remove mercaptans and dienes prior to 2-butene enrichment.