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:
Dec. 20, 2011
Filed:
Dec. 15, 2008
Stephen N. Vaughn, Kingwood, TX (US);
Gary T. Schmidt, Kingwood, TX (US);
Teng Xu, Hampton, NJ (US);
Christopher E. Dilley, Sugar Land, TX (US);
Stephen N. Vaughn, Kingwood, TX (US);
Gary T. Schmidt, Kingwood, TX (US);
Teng Xu, Hampton, NJ (US);
Christopher E. Dilley, Sugar Land, TX (US);
ExxonMobil Chemical Patents Inc., Houston, TX (US);
Abstract
The invention relates to a method for forming olefins from an oxygenate-containing feedstock, comprising contacting the at least partially vaporized feed comprising oxygenates with a first catalyst upstream of an OTO reactor, the first catalyst consisting of a reactive guard bed of metal oxides comprising one or more metals from Groups 2, 3, and 4 of the Periodic Table and/or one or more metals in the Lanthanide and Actinide series, then contacting the feedstock in the OTO reactor with a second catalyst under conditions effective to form an effluent comprising the olefins.