The Experimental Study of H_2 Producing Law in Coal Oxidation Pyrolysis Process

Through studying on the oxidation temperature increasing experimental of long flame coal,fat coal and anthracite coal,the H2 produced laws of three coals are obtained during oxidation thermal decomposition.The result shows that the H2 production trends of three coals are basically same.The higher the coal metamorphic grade is,the lower the temperature is when H2 begins to precipitate;the higher the spontaneous combustion tendency is,the lower the temperature is.