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:
Jun. 22, 2010
Filed:
Jul. 19, 2006
Keith H. Kuechler, Friendswood, TX (US);
Stephen H. Brown, Bernardsville, NJ (US);
Marc P. Puttemans, Schepdaal, BE;
Steven E. Silverberg, Seabrook, TX (US);
An A. Verberckmoes, Serskamp, BE;
Keith H. Kuechler, Friendswood, TX (US);
Stephen H. Brown, Bernardsville, NJ (US);
Marc P. Puttemans, Schepdaal, BE;
Steven E. Silverberg, Seabrook, TX (US);
An A. Verberckmoes, Serskamp, BE;
ExxonMobil Chemical Patents Inc., Houston, TX (US);
Abstract
A feedstock containing at least 1 wt % butenes, at least 1 wt % pentenes, at least 1 wt % hexenes, at least 10 wppm Cdienes, at least 10 wppm Cdienes, and optionally at least 10 wppm Cdienes can be selectively hydrogenated over a catalyst (e.g., a noble metal) to form a stream containing 100 wppm to 4000 wppm total dienes. The hydrogenated stream, and an olefinic recycle stream having less than 10 wt. % Cmoieties, can be contacted with a molecular sieve catalyst, e.g., at a recycle to feed ratio between 0.1 and 3.0, at a WHSV of at least 1.0 based on olefin in the feed, and at a reactor ΔT no greater than 40° F. (22° C.), thus forming a reaction product that can then be separated into a distillate, e.g., having from 1 wt % to 30 wt % non-normal Colefins, and the aforementioned olefinic recycle stream.