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:
Oct. 27, 2015
Filed:
Apr. 28, 2010
John Stephen Godsmark, Antwerp, GB;
Georges Marie Karel Mathys, Bierbeek, BE;
Hans Karel Theresia Goris, Zaventem, BE;
Roger Eijkhoudt, Huijbergen, NL;
Stephen Harold Brown, Annandale, NJ (US);
John Stephen Godsmark, Antwerp, GB;
Georges Marie Karel Mathys, Bierbeek, BE;
Hans Karel Theresia Goris, Zaventem, BE;
Roger Eijkhoudt, Huijbergen, NL;
Stephen Harold Brown, Annandale, NJ (US);
ExxonMobil Chemical Patents Inc., Baytown, TX (US);
Abstract
Deactivation of a zeolite catalyst during its use to catalyse the oligomerisation of olefins, is often believed to be a result of the formation of high boiling polymers as by-products. These by-products can remain on the catalyst and undergo further conversion to higher molecular weight polymers, which resemble heavy tars and in some cases even have the appearance of coke-like material. These materials can coat the catalyst particles and plug pores in the catalyst, thereby causing catalyst deactivation. The invention relates to an improved method for regenerating such a catalyst.