Patent ID: 8479834

Claim:
An integrated process to (i) produce an acid gas-depleted gaseous hydrocarbon product steam, (ii) produce a liquid hydrocarbon product stream and (iii) enhance production of a hydrocarbon-containing fluid from an underground hydrocarbon reservoir, the process comprising the steps of: (1) injecting a pressurized carbon dioxide stream into an underground hydrocarbon reservoir to enhance production of the hydrocarbon-containing fluid from the underground hydrocarbon reservoir via a hydrocarbon production well, the hydrocarbon-containing fluid comprising carbon dioxide; (2) recovering the hydrocarbon-containing fluid produced from the hydrocarbon production well; (3) separating the hydrocarbon-containing fluid into (a) the liquid hydrocarbon product stream and (b) a gaseous hydrocarbon stream comprising carbon dioxide; (4) producing a synthesis gas stream from a carbonaceous feedstock, the synthesis gas stream comprising (a) at least one of carbon monoxide and carbon dioxide, and (b) at least one of hydrogen and methane; (5) co-treating the gaseous hydrocarbon stream and the synthesis gas stream in an acid gas removal system to produce the acid gas-depleted gaseous hydrocarbon product stream and a carbon dioxide-rich recycle stream; and (6) pressurizing the carbon dioxide-rich recycle stream to generate the pressurized carbon dioxide stream.