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. 14, 2012
Filed:
Jun. 05, 2009
John Stephen Godsmark, Grez Doiceau, BE;
Georges Marie Karel Mathys, Bierbeek, BE;
Paul Hamilton, Brussels, BE;
Stephen Harold Brown, Bernardsville, NJ (US);
Yeo-meng Lim, Singapore, SG;
John Stephen Godsmark, Grez Doiceau, BE;
Georges Marie Karel Mathys, Bierbeek, BE;
Paul Hamilton, Brussels, BE;
Stephen Harold Brown, Bernardsville, NJ (US);
Yeo-Meng Lim, Singapore, SG;
ExxonMobil Chemical Patents Inc., Houston, TX (US);
Abstract
In the oligomerization of olefins in a tubular reactor employing a molecular sieve catalyst, the temperature of the reaction is monitored and the space velocity of the olefin feed to the reactor is reduced as the temperature increases. This has been found to increase catalyst life and lead to extended production runs. Further extensions of the production run are achieved by improving reactor operating stability as the end of the production run approaches.