Patent ID: 7955420

Claim:
A process comprising: obtaining produced gas from a source of produced gas, said produced gas including at least hydrocarbon gas and carbon dioxide; immediately cooling said produced gas to liquefy at least a portion of said carbon dioxide; processing the produced gas at pressures and temperatures to liquefy a portion of said carbon dioxide but never solidify any of said carbon dioxide while forming a first stream and a second stream, said first stream including at least the hydrocarbon gas and the carbon dioxide as a gas and not as a liquid or solid and said second stream including at least carbon dioxide as a liquid and not as solid; separating said carbon dioxide as a gas from said first stream and supplying said carbon dioxide as a gas for incorporation with said produced gas being processed into said first stream and said second stream; supplying the hydrocarbon gas of the first stream as a hydrocarbon output; and supplying said second stream as a waste output.