Comparison on Pyrolysis of Coal and Biomass under Constant

On the background of a laboratory fixed bed reactor, two kinds of coal and three biomass, like peanut shell, walnut shell and sawdust are selected as experimental materials, quantitative analyzed pyrolysis constant temperature and residence time effect on the yield of pyrolysis liquid fraction, char and gas in this paper. The results indicate: Pyrolysis of the above two coal samples and three biomass show the same trend. Higher pyrolysis temperature and longer pyrolysis time (suitable catalysts for biomass) contribute to hydrogen production. For coal, increasing pyrolysis temperature and putting off residence time help to produce the pyrolysis oil yield, but the biomass, not obvious effect.