COAL HYDROMETHANOLYSIS WITH COKE-OVEN GAS .2. INFLUENCE OF THE COKE-OVEN GAS COMPONENTS ON PYROLYSIS YIELDS

To improve the economics of the hydropyrolysis of coal by reducing the hydrogen cost, it has been suggested that coke-oven gas be used inste ad of pure hydrogen. The present paper describes the role of methane a nd some minor components in the coke-oven gas during pyrolysis and the ir influence on the oil and gas yields. Pyrolysis was conducted at 765 degrees C under 3 MPa of various gas mixtures simulating coke-oven ga s. The results clearly demonstrate the possibility of using coke-oven gas for coal pyrolysis and lead to the conclusion that synergy between metallurgical cokemaking and 'creaming-off' coal by hydropyrolysis wi ll be profitable to both processes.