| 摘要 |
A process for the production of a fuel gas which includes the steps of: gasification of a liquid hydrocarbon or solid carbonaceous material in the presence of air and optionally steam to produce a gas stream comprising hydrogen, nitrogen and carbon oxides, removing solids therefrom from the gas stream, mixing the gas stream with steam and subjecting the resulting stream to carbon monoxide shift to convert at least a portion of the carbon monoxide present to carbon dioxide with generation of hydrogen, removing at least a portion of the carbon dioxide and other acid gas from the gas stream; reacting the hydrogen in the gas stream with carbon oxides present in the gas stream or with solid carbonaceous material to generate methane and subjecting the product gas stream to cryogenic separation to yield at least a nitrogen-rich stream and methane containing fuel gas. |
