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:
Aug. 19, 2014
Filed:
Apr. 26, 2011
David Lee, Seabrook, TX (US);
Adam Orosco, Houston, TX (US);
Lincoln Sarager, Houston, TX (US);
Trinity Horton, Houston, TX (US);
Radmila Jevtic, Pasadena, TX (US);
Victor J. Johnston, Houston, TX (US);
David Lee, Seabrook, TX (US);
Adam Orosco, Houston, TX (US);
Lincoln Sarager, Houston, TX (US);
Trinity Horton, Houston, TX (US);
Radmila Jevtic, Pasadena, TX (US);
Victor J. Johnston, Houston, TX (US);
Celanese International Corporation, Dallas, TX (US);
Abstract
Recovery of alcohol, in particular ethanol, by separating a vapor crude alcohol product obtained from the hydrogenation of acetic acid using a low energy process. The vapor crude ethanol product is separated in a column to produce a distillate stream comprising ethanol and at least one non-condensable gas. The vapor crude ethanol product may pass through a membrane before the first distillation column to separate the at least one non-condensable gas from the ethanol. The ethanol product is subsequently recovered from the distillate stream.