| 초록 |
In this study, the fast pyrolysis of tulip tree was performed in a bubbling fluidized-bed reactor under different reaction conditions (pyrolysis temperature, with and without catalyst) to investigate the effects of these parameters on product yield and bio-oil quality. The quality of pyrolysis bio-oil can be improved by upgrading the pyrolysis vapor before its condensation using catalyst. Catalytic fast pyrolysis has attracted a lot of attention as a promising method for producing high quality bio-oil from biomass feedstock. The system used silica sand, ferric oxides (Fe2O3 and Fe3O4) and HZSM-5 as the fluidized-bed material and nitrogen as the fluidizing medium. The liquid yield reach highest value of was 54.96 wt% at the pyrolysis temperature of 450℃, using Fe2O3 catalyst compare to this of 48.45 wt.% for HZSM-5, 47.57 wt.% for Fe3O4 and 49.03 wt.% with sand. Catalysts rejected oxygen mostly as water and produced lower amount of CO, CO2 but higher amount of hydrocarbons gas. |
