Fremgangsmate for a fremstille en HN2/N-rik gass og en CON2/N-rik gass ved hoyt trykk

摘要

The present invention concerns a method for preparing a COSUB2/SUB-rich gas stream for injection purposes or deposition, and a hydrogen rich gas stream, the method comprising the following steps: a) natural gas and HSUB2/SUBO are fed into a one-step reforming process for preparing a gas mixture comprising COSUB2 /SUBand HSUB2 /SUBunder supercritical condition for water from about 400° C. to about 600° C. and pressure from about 200 to about 500 bar in the reforming reactor; b) the gas mixture from a) is separated into a HSUB2/SUB-rich and COSUB2/SUB-rich gas stream, respectively. The invention also comprises use of COSUB2/SUB-rich gas stream for injection into marine formations, and use of HSUB2/SUB-rich stream for hydrogenation, as a source of energy/fuel in fuel cells and for production or electricity.