LAUSR

Thermal gravimetric analysis was used to investigate the pyrolysis process of Chlorella pyrenoidosa (C. pyrenoidosa). Five kinds of metal compounds loaded HZSM-5 catalysts including Ce(I)/HZSM-5, Ce(II)/HZSM-5, La(I)/HZSM-5, La(II)/HZSM-5, and Pr-Nd/HZSM-5 were prepared by an impregnation-calcination method. The results indicated that all the metal loaded HZSM-5 can improve its catalytic activity except for La(II)/HZSM-5. First order kinetic reaction can well describe the catalytic pyrolysis processes. Ce(I)/HZSM-5 had the lowest activation energy for catalytic pyrolysis of C. pyrenoidosa, which indicated that it had the best catalytic effect and the potential prospect of providing efficiency guidance for preparing liquid bio-fuel by catalytic liquefaction of C. pyrenoidosa.