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:
Jan. 18, 2005
Filed:
Jun. 27, 2002
James R. Lattner, Seabrook, TX (US);
David R Lumgair, Jr., Craddockville, VA (US);
Jeffrey A. Kabin, Houston, TX (US);
Michael Peter Nicoletti, Houston, TX (US);
James R. Lattner, Seabrook, TX (US);
David R Lumgair, Jr., Craddockville, VA (US);
Jeffrey A. Kabin, Houston, TX (US);
Michael Peter Nicoletti, Houston, TX (US);
ExxonMobil Chemical Patents Inc., Houston, TX (US);
Abstract
This invention is directed to a method of removing dimethyl ether from an olefin stream. Dimethyl ether is removed from the olefin stream by first separating the olefin stream into a first stream comprising dimethyl ether and lighter boiling point compounds, and a second stream comprising C+ olefin and higher boiling point hydrocarbons. The dimethyl ether is then separated from the first stream using extractive distillation.