Patent ID: 9409846
Filing Date: 2016-08-09
CPC Classification: C07C,Y02P

Claim Text:
1. A process for producing acetic acid comprising: introducing a product gas comprising carbon monoxide, hydrogen, and carbon dioxide and at least one reactant selected from the group consisting of methanol, methyl acetate, methyl formate, dimethyl ether and mixtures thereof to a reactor comprising a reaction medium comprising a catalyst, methyl acetate, promoter, and catalyst stabilizer under carbonylation conditions effective to produce acetic acid, wherein hydrogen partial pressure in the reactor is from 3 atm to 40 atm; withdrawing a vent gas from the reactor, provided that the carbon monoxide partial pressure in the reactor is less than 15 atm to maintain a carbon monoxide content in the vent gas of less than 40 mol. %; withdrawing a reaction solution from the reactor; and recovering acetic acid from the reaction solution.