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:
Jul. 10, 2001
Filed:
Mar. 02, 2000
Shun C. Fung, Bridgewater, NJ (US);
Tan-Jen Chen, Kingwood, TX (US);
Marcel J. Janssen, Kessel-Lo, BE;
William A. Wachter, Baton Rouge, LA (US);
B. Erik Henry, Katy, TX (US);
John E. Asplin, Houston, TX (US);
ExxonMobil Research and Engineering Company, Annandale, NJ (US);
Abstract
A process for producing polymers from C,-C,olefins selectively produced from a catalytically-cracked or thermally-cracked naphtha stream is disclosed herein. A mixture of the naphtha stream and a stream of steam is feed into a reaction zone where it is contacted with a catalyst containing from about 10 to 50 wt. % of a crystalline zeolite having an average pore diameter less than about 0.7 nanometers at reaction conditions that include temperatures from about 500° C. to 650° C. and a hydrocarbon partial pressure from about 10 to 40 psia.