| 摘要 |
<p>1. A method for producing energy from natural gas, comprising the steps of: a) admixing an oxygen containing gas, said oxygen containing gas has a nitrogen content substantially lower than air with natural gas which originates from a natural gas reservoir and converting said oxygen containing gas and said natural gas in the presence of CO2, into a flow comprising CO2 and water, whereby energy is generated; b) removing at least a part of the water from the flow comprising CO2 and water, so that a product flow is obtained; and c) injecting at least a part of said product flow into a reservoir from which natural gas has been extracted. 2. A method according to claim 1, wherein step c) is carried out such that the pressure in the natural gas reservoir remains substantially constant. 3. A method according to any one of the preceding claims, wherein the energy in step a) is generated in the form of heat and electricity. 4. A method according to any one of the preceding claims, wherein the generated energy is at least partly used for obtaining a flow of oxygen-rich gas. 6. A method according to claim 4, wherein said flow of oxygen-rich gas is obtained by converting water into a flow of oxygen-rich gas and a flow of hydrogen-rich gas, preferably by means of hydrolysis of the water. 6. A method according to claim 4, wherein said flow of oxygen-rich gas is obtained by separating a flow of air into a flow of nitrogen-rich gas and a flow of oxygen-rich gas. 7. A method according to any one of claims 4-6, wherein the flow of oxygen-rich gas is used as source of oxygen in step a). 8. A method according to any one of the preceding claims, wherein the product flow is at least partly used as source of CO2 in step a). 9. A method according to any one of the preceding claims, wherein in step a) approximately 18 vol.% of oxygen is present.</p> |
