Patent ID: 8567200

Claim:
A process for the production of carbon dioxide in concentrated form and electricity from a hydrocarbon feedstock, said process comprising steps: a) introducing an air feed stream comprising air and a fuel feed stream comprising methane to an autothermal reactor unit (ATR) for the production of synthesis gas wherein (i) the fuel feed stream is at a temperature in a range of 350 to 700° C., and (ii) a molar ratio of oxygen contained in the air feed stream to carbon in hydrocarbons in the fuel feed stream is from 0.45:1 to 0.85:1; b) withdrawing a synthesis gas stream comprising methane, hydrogen, carbon monoxide, carbon dioxide, nitrogen from the ATR and heat exchanging the synthesis gas stream with a water stream to produce steam and subsequently heat exchanging the synthesis gas stream with at least one process stream selected from the group consisting of a hydrocarbon feedstock, a pre-reformer feed stream, the fuel feed stream, a hydrogen stream, boiler feed water, the air feed stream, and steam to produce superheated steam; c) passing at least a portion of the synthesis gas stream to a shift converter unit where the synthesis gas reacts with steam to generate additional carbon dioxide and hydrogen; d) withdrawing a shift converted gas stream from the shift converter unit and heat exchanging the shift converted gas stream with at least one process stream selected from the group consisting of a hydrocarbon feedstock, a pre-reformer feed stream, the fuel feed stream, a hydrogen stream, boiler feed water, the air feed stream, water for the production of steam, and steam for the production of superheated steam; e) passing the shift converted gas stream to a carbon dioxide separation unit for the separation of a concentrated carbon dioxide stream from a hydrogen stream comprising hydrogen and nitrogen; f) combusting at least part of the hydrogen stream in a gas turbine wherein the gas turbine drives an electric generator thereby producing electricity and wherein combustion of the hydrogen stream generates an exhaust gas.