Patent ID: 6838071

Claim:
Method for production of a CO 2 -rich gas stream and a H 2 -rich gas stream, characterized in that the method comprises the following steps: a) natural gas and water are fed to a reforming reactor and converted to synthesis gas under supply of an O 2 -rich gas to the reactor; b) the gas stream from a) is shifted, in one step, whereby the content of CO is reduced and the amounts of CO 2 and H 2 are increased by reaction of H 2 O at a ratio H 2 O:CO of from 1 to 9; c) the gas stream from b) is separated in a separation unit into a CO 2 -rich and a H 2 -rich gas stream, respectively, wherein the pressure in the CO 2 -rich gas stream after the separation is from 5 to 100 bar.