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. 14, 2013
Filed:
Aug. 03, 2011
Adam Orosco, Houston, TX (US);
Manuel Salado, Seabrook, TX (US);
Lincoln Sarager, Houston, TX (US);
R. Jay Warner, Houston, TX (US);
Trinity Horton, Houston, TX (US);
Victor J. Johnston, Houston, TX (US);
David Lee, Seabrook, TX (US);
Adam Orosco, Houston, TX (US);
Manuel Salado, Seabrook, TX (US);
Lincoln Sarager, Houston, TX (US);
R. Jay Warner, Houston, TX (US);
Trinity Horton, Houston, TX (US);
Victor J. Johnston, Houston, TX (US);
David Lee, Seabrook, TX (US);
Celanese International Corporation, Dallas, TX (US);
Abstract
A process for operating a distillation column to separate an ethanol mixture comprising ethanol and acetic acid where the recovered ethanol comprises less than 700 wppm acetic acid. The operating conditions for the column may vary depending on the fed composition. In particular the process provides energy efficient recovery of ethanol with low concentration acetic acid.