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:
May. 05, 2015
Filed:
Apr. 26, 2012
David Lee, Seabrook, TX (US);
Adam Orosco, Houston, TX (US);
Claudio Ribeiro, Houston, TX (US);
R. Jay Warner, Houston, TX (US);
Robert Alan Deck, Richmond, TX (US);
Emily Duff, League City, TX (US);
Victor J. Johnston, Houston, TX (US);
David Lee, Seabrook, TX (US);
Adam Orosco, Houston, TX (US);
Claudio Ribeiro, Houston, TX (US);
R. Jay Warner, Houston, TX (US);
Robert Alan Deck, Richmond, TX (US);
Emily Duff, League City, TX (US);
Victor J. Johnston, Houston, TX (US);
Celanese International Corporation, Irving, TX (US);
Abstract
The present invention is directed to processes for recovering ethanol obtained from the hydrogenation of acetic acid. Acetic acid is hydrogenated in the presence of a catalyst in a hydrogenation reactor to form a crude ethanol product. The crude ethanol product is separated in one or more columns to recover ethanol. In some embodiments, less than 10 wt. % ethanol is recycled to the hydrogenation reactor.