Experimental study on gasification kinetics of Lu’an coal char with steam by non-isothermal thermogravimetry

Steam gasification of Lu’an coal char was studied by non-isothermal thermogravimetry.The effect of various heating rates and steam differential pressures on char gasification was analyzed.Kinetics results show that Lu’an char gasification behavior can be described by volume reaction model.It is found by kinetics parameters that there is obvious compensation effect between activation energy and pre-exponential factor.The compensation effect can be explained by transition state theory.