PROCESS FOR PRODUCING HIGH HYDROGEN GAS BY COAL UNDERGROUND GASIFICATION

摘要

The invention relates to the subterraneous gasification of coal and is directed to the production of a gas with a high hydrogen content. A MIXTURE OF OXYGEN AND CO, A COOLING OPERATION OF RAW GAS BY WATER INJECTION IN GAS-OUTPUT SURVEYS AND A CONVERSION OPERATION OF CO, REALIZED ON SURFACE, USING THE WATER VAPOR PRODUCED THEN GAS COOLING. / P P THE NEED FOR UNDERGROUND GASIFICATION IS RECOVERED IN THE PRODUCTION GAS CLEANING PLANT.