HYDROGEN EXTRACTION OF COAL AND PRODUCTION OF LIQUID HYDROCARBON FROM COAL

摘要

Coal can be extracted at a temperature of 420 to 500 DEG C at a pressure in excess of 70 bar, using a gaseous solvent which contains at least 25% of a hydrogen donor to maximise yield of extract and to minimise yield of carbonaceous residue (char.) When the char yield is below 50%, all the char can be used on site to provide process energy, hydrogen, etc.