Abstract
The effect of metal-modified zeolite catalysts on the pyrolysis behaviors of jatropha waste was examined. At 600 ℃, ca.72 % of aromatic hydrocarbons with other by-products was produced in the presence of PtPd/H-ZSM-5(30) catalyst. The aromatic selectivity is dependent on the zeolite-type and the order was H-ZSM-5(30) > Beta(22.5) > USY(20). Catalyst regeneration behaviors depend on the pore structure and solid acidity. The ZSM-type with 10 membered-ring (MR) favors reaction outer surface, while the USY and Beta-types favor the reaction inside pore. Efforts have been made to improve bio-oil yield and to try oil up-grading.
