| 摘要 |
The invention provides a process to prepare a mixture of hydrogen and carbon monoxide from a methane comprising gas. The following steps are performed: (a) partial oxidation of the methane comprising gas with an oxygen containing gas at a pressure of above 5 MPa thereby obtaining a raw syngas comprising carbon monoxide and hydrogen having a temperature of above 1100° C., (b) expanding the raw syngas in a high temperature/high pressure turbo-expander thereby recovering power and obtaining an expanded syngas having a pressure below 4 MPa and a temperature below 1050° C., and (c) further cooling the expanded syngas to obtain the mixture of hydrogen and carbon monoxide having a temperature of between 100 and 500° C.
|
