Patent ID: 8663367

Claim:
A process for isolating carbon dioxide from a stream of an exhaust gas resulting from combustion, comprising: introducing the exhaust gas stream to a cooler to cool the gas stream, introducing the stream of cooled exhaust gas into a vessel having an inlet to receive the cooled exhaust gas, an adsorbent to selectively adsorb the carbon dioxide from the exhaust gas and an outlet to discharge a process stream; applying heat from a heat source to heat the adsorbent to desorb the adsorbed carbon dioxide from the adsorbent to produce a process stream of pressurized carbon dioxide for release through the outlet, expanding the pressurized stream of carbon dioxide from the outlet to cool the stream and provide a stream of cooled carbon dioxide, passing the stream of cooled carbon dioxide to the cooler to provide cooling for the cooler to cool the stream of exhaust gas, introducing the carbon dioxide stream from the cooler into the stream of cooled exhaust gas.