Patent ID: 8758484

Claim:
A method for removing CO 2 from a contaminated gas stream, the method comprising: absorbing CO 2 from a gas stream using an ammonia comprising medium in a pressurized absorber to produce a gas stream depleted of CO 2 and an ammonia comprising medium with absorbed CO 2 , the absorbing being performed at an elevated pressure sufficient to decrease the partial pressure the ammonia and increase the solubility of the CO 2 and at a temperature greater than 20° C.; regenerating the ammonia comprising medium with absorbed CO 2 within a pressurized regenerator to separate CO 2 from the ammonia comprising medium, the regenerating being performed at a pressure greater than 10 bar gauge; and condensing ammonia present in the gas stream depleted of CO 2 ; and wherein the condensing is performed at a pressure between 0 bar gauge and 10 bar gauge.