| 摘要 |
A PROCESS FOR THE PRODUCTION OF HYDROCARBONS IS DESCRIBED COMPRISING; A) SUBJECTING A MIXTURE OF A HYDROCARBON FEEDSTOCK AND STEAM TO CATALYTIC STEAM REFORMING TO FORM A PARTIALLY REFORMED GAS, B) SUBJECTING THE PARTIALLY REFORMED GAS TO PARTIAL COMBUSTION WITH AN OXYGEN-CONTAINING GAS AND BRINGING THE RESULTANT PARTIALLY COM BUSTED GAS TOWARDS EQUILIBRIUM OVER A STEAM REFORMING CATALYST TO FORM A REFORMED GAS MIXTURE, C) COOLING THE REFORMED GAS MIXTURE TO BELOW THE DEW POINT OF THE STEAM THEREIN TO CONDENSE WATER AND SEPARATING CONDENSED WATER TO GIVE A DE-WATERED SYNTHESIS GAS, D) SYNTHESISING HYDROCARBONS FROM SAID DE-WATERED SYNTHESIS GAS BY THE FISCHER- TROPSCH REACTION AND E) SEPARATING THE HYDROCARBONS FROM CO-PRODUCED WATER, CHARACTERISED IN THAT AT LEAST PART OF SAID CO-PRODUCED WATER IS FED TO A SATURATOR WHEREIN IT IS CONTACTED WITH HYDROCARBON FEEDSTOCK TO PROVIDE AT LEAST PART OF THE MIXTURE OF HYDROCARBON FEEDSTOCK AND STEAM SUBJECTED TO STEAM REFORMING. BY USING THE CO-PRODUCED WATER TO PRODUCE STEAM, THE EFFICIENCY OF THE OVERALL PROCESS IS IMPROVED AND THE NECESSITY FOR SEPARATION OF CONTAMINANTS IN THE CO-PRODUCED WATER IS REDUCED OR ELIMINATED.
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