초록 ▼

The present invention concerns a method for preparing a CO2-rich gas stream for injection purposes or deposition, and a hydrogen rich gas stream, the method comprising the following steps: a) natural gas and H2O are fed into a one-step reforming process for preparing a gas mixture comprising CO2 and

The present invention concerns a method for preparing a CO2-rich gas stream for injection purposes or deposition, and a hydrogen rich gas stream, the method comprising the following steps: a) natural gas and H2O are fed into a one-step reforming process for preparing a gas mixture comprising CO2 and H2 under 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 H2-rich and CO2-rich gas stream, respectively. The invention also comprises use of CO2-rich gas stream for injection into marine formations, and use of H2-rich stream for hydrogenation, as a source of energy/fuel in fuel cells and for production or electricity.

대표청구항 ▼

1. A method for preparing a CO2-rich gas stream and a H2-rich gas stream, which comprises:a) feeding natural gas and H2O into a reforming reactor to form a gas mixture, b) subjecting the gas mixture to a one-step reforming reaction under supercritical heat and pressure conditions for water to form a

1. A method for preparing a CO2-rich gas stream and a H2-rich gas stream, which comprises:a) feeding natural gas and H2O into a reforming reactor to form a gas mixture, b) subjecting the gas mixture to a one-step reforming reaction under supercritical heat and pressure conditions for water to form a reformed gas mixture; and c) separating the reformed gas mixture into a H2-rich gas stream and a CO2-rich gas stream, wherein the separated CO2-rich gas stream has a pressure within a range from 20 to 200 bar. 2. The method according to claim 1, wherein the temperature in the reforming reactor is from about 400° C. to about 600° C.3. The method according to claim 2, wherein the pressure in the reforming reactor is from about 200 to about 500 bar.4. The method according to claim 2, wherein the gas mixture in the reforming reactor is passed over a catalyst bed.5. The method according to claim 2, wherein the reaction in the reforming reactor is carried out without a catalyst.6. The method according to claim 1, wherein the pressure in the reforming reactor is from about 200 to about 500 bar.7. The method according to claim 6, wherein the gas mixture in the reforming reactor is passed over a catalyst bed.8. The method according to claim 6, wherein the reaction in the reforming reactor is carried out without a catalyst.9. The method according to claim 1, wherein the gas mixture in the reforming reactor is passed over a catalyst bed.10. The method according to claim 9, wherein the reaction in the reforming reactor is carried out without a catalyst.11. The method according to claim 1, wherein the reaction in the reforming reactor is carried out without a catalyst.12. The method according to claim 1, which further comprises injecting the separated CO2-rich gas stream into marine formations.13. The method according to claim 1, which further comprises transporting the separated H2-rich gas stream for hydrogenation.14. The method according to claim 1, which further comprises converting the separated H2-rich gas stream to energy/fuel in fuel cells.15. The method according to claim 1, which further comprises transporting the separated H2-rich gas stream for production of electricity.