Patent ID: 9739485
Date: 2017-08-22
CPC Classifications: B01D,F23G,F23J

Claim:
1. A process for purifying a feed gas stream comprising CO and at least 45% CO 2 , the process comprising the steps of: a′) providing a purification plant comprising: a) separating the feed gas stream in at least one separator pot; b) heating the overhead gas resulting from the separator pot within the heater to a temperature within the range of 90° C. to 140° C.; c) catalytically oxidizing the gas stream heated in step b) in the presence of oxygen at a temperature between 90° C. and 200° C.; d) recovering the energy linked to the pressure and to the temperature of the gas stream recovered downstream of the catalytic oxidation unit using the turbines, wherein the temperature of the gas stream recovered is between 50° C. to 200° C. prior to expansion in the turbines.