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:
Jun. 10, 2008
Filed:
Apr. 16, 2007
James H. Beech, Jr., Kingwood, TX (US);
Cor F. Van Egmond, Pasadena, TX (US);
Ronald G. Searle, Houston, TX (US);
Michael Peter Nicoletti, Houston, TX (US);
David Ritchie Lumgair, Jr., Craddockville, VA (US);
James H. Beech, Jr., Kingwood, TX (US);
Cor F. Van Egmond, Pasadena, TX (US);
Ronald G. Searle, Houston, TX (US);
Michael Peter Nicoletti, Houston, TX (US);
David Ritchie Lumgair, Jr., Craddockville, VA (US);
ExxonMobil Chemical Patents Inc., Houston, TX (US);
Abstract
This invention is directed to removing contaminants from an oxygenate-containing feedstream for an oxygenate to olefin reaction system. Oxygenate feeds used in the conversion of oxygenates to olefins, and which contain contaminants, are heated to form a vapor stream and a liquid stream. The heating is conducted so that a majority of the metalloaluminophosphate molecular sieve catalyst contaminants is contained in the liquid stream. The vapor stream is separated from the liquid stream, and the separated vapor stream is contacted with the metalloaluminophosphate molecular sieve catalyst to form olefin product. The heating of the feedstream and the separation of the vapor stream can be carried out in one or more stages.