US 2012/0059197 A1 · ALCOHOL PRODUCTION PROCESS INTEGRATING ACETIC ACID FEED STREAM COMPRISING WATER FROM CARBONYLATION PROCESS

Abstract

In one embodiment, the invention is to a process for producing ethanol, comprising the step of providing from a distillation column in a carbonylation process a purified acetic acid stream comprising up to 25 wt. % water. The process further comprises the step of hydrogenating acetic acid of the purified acetic acid stream in the presence of a catalyst and under conditions effective to form a crude ethanol product comprising ethanol and water. Ethanol is recovered from the crude ethanol product.

Claims32

Dependent claims

A process for producing ethanol, comprising the steps of:

(a) providing from a distillation column in a carbonylation process a purified acetic acid stream comprising up to 25 wt. % water;
(b) hydrogenating acetic acid of the purified acetic acid stream in the presence of a catalyst and under conditions effective to form a crude ethanol product comprising ethanol and water;
and
(c) recovering ethanol from the crude ethanol product.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

13/094,580Filed 26 Apr 2011

Priority

7 May 2010

Published

8 Mar 2012

Term ends

Not estimatedThe source records don’t support an estimate.

Classification8 codes

C07C 29/80
By physical treatment: by distillation
C07C 29/149
Of carboxylic acids or derivatives thereof: with hydrogen or hydrogen-containing gases
C07C 29/76
Separation; Purification; Use of additives, e.g. for stabilisation: by physical treatment
C07C 51/12
By reaction with carbon monoxide: on an oxygen-containing group in organic compounds, e.g. alcohols

Alcohol production process integrating acetic acid feed stream comprising water from carbonylation process

Life of this patent

Alcohol production process integrating acetic acid feed stream comprising water from carbonylation process

Life of this patent

Abstract

Claims32