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:
Sep. 25, 2007
Filed:
Dec. 19, 2005
Yun-feng Chang, Houston, TX (US);
Stephen N. Vaughn, Kingwood, TX (US);
Luc Roger Marc Martens, Meise, BE;
Jeffrey Wayne Sprinkle, Baytown, TX (US);
Ian Nathaniel Walker, Houston, TX (US);
Yun-Feng Chang, Houston, TX (US);
Stephen N. Vaughn, Kingwood, TX (US);
Luc Roger Marc Martens, Meise, BE;
Jeffrey Wayne Sprinkle, Baytown, TX (US);
Ian Nathaniel Walker, Houston, TX (US);
ExxonMobil Chemical Patents Inc., Houston, TX (US);
Abstract
The invention relates to a molecular sieve catalyst composition, to a method of making or forming the molecular sieve catalyst composition, and to a conversion process using the catalyst composition. In particular, the invention is directed to a catalyst composition comprising a molecular sieve having a framework including at least [AlO] and [PO] tetrahedral units, at least one of a binder and a matrix material and at least one phosphorus compound separate from said molecular sieve wherein, after calcination at 760° C. for 3 hours, said catalyst composition has a microporous surface area in excess of 20% of the microporous surface area of said molecular sieve after calcination at 650° C. in nitrogen for 2 hours. The catalyst composition is particularly useful in a conversion process for producing olefin(s), preferably ethylene and/or propylene, from a feedstock, preferably an oxygenate containing feedstock.