Abstract: In this study, taken Chaohu algae as raw material and molecular 38% HZSM-5sieve as catalyst for catalytic pyrolysis, the effects of pyrolysis temperature, pyrolysis time, catalyst content on the pyrolysis efficiency were investigated. The suitable technological conditions for the preparation of catalytic pyrolysis were obtained as follows: pyrolysis temperature of 450℃, pyrolysis time of 30 min, the catalyst mass fraction of 10%, the yield of pyrolysis char can reach 29.1%, the yield of the pyrolysis liquid is up to 58.4%. The SEM were characterized for the pyrolysis solid product, which showed that there was no obvious pore structure on the surface of the pyrolysis carbon. The XRD analysis shows that a shoulder peak near the 2 theta is 23 degrees in pyrolytic carbon, most of the carbon exists in the amorphous form. The GC-MS characterization of pyrolysis liquid show that hydrocarbons, nitrogen-containing compounds, acids and other organic compounds (including alcohols, phenols, esters and unknown material etc.)were include in the liquid components.

Key words: algae, catalyzator, catalytic pyrolysis, GC-MS