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:
Nov. 29, 2016
Filed:
Jul. 07, 2014
Applicant:
Tpc Group Llc, Houston, TX (US);
Inventors:
Joseph G. Duff, League City, TX (US);
Clifford A. Maat, Pearland, TX (US);
Michael O. Nutt, Pearland, TX (US);
Mark P Kaminsky, Friendswood, TX (US);
Assignee:
TPC GROUP LLC, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 5/48 (2006.01); C07C 2/30 (2006.01);
U.S. Cl.
CPC ...
C07C 5/48 (2013.01); C07C 2/30 (2013.01); C07C 2531/14 (2013.01); C07C 2531/38 (2013.01);
Abstract
A method of producing butadiene includes: (1) dimerizing ethylene to butene followed by (2) oxidatively dehydrogenating the butene to butadiene and (3) recovering the butadiene by (i) absorbing the product with a hydrocarbon absorber oil and (ii) stripping a crude product stream from the absorber oil. The absorber oil is selected so as to be effective to sequester ethylene dimerization-derived impurities from the system.