The objective of this research was to develop low-cost metal-supported catalysts to improve the hydrocarbons, phenols, and phenolic compounds yield in the bio-oil. In this study, pyrolysis of pine sawdust was performed without a catalyst, with HZSM-5 catalyst and with Ni/HZSM-5 catalyst at temperatures of 400, 500, and 600 °C in a fixed bed reactor. The metal supported catalyst Ni/HZSM-5 was developed by wet impregnation method. The effects of temperatures and catalyst type on the yield and quality of the pyrolysis oil were investigated. The non-catalytic pyrolysis resulted in bio-oil yield of 37.4 wt% at 500 °C; however, HZSM-5 and Ni/HZSM-5 catalysts had a marginally lower yield of bio-oil (36.6 and 35.3 wt%, respectively) at 400 °C. The presence of catalysts improved the bio-oil viscosity by producing approximately more than 90% of light bio-oil while the remaining 10% was heavy bio-oil. Ni/HZSM-5 catalyst exhibited the best catalyst activity, with 80.2% and 49.7% yields of the desired compounds in heavy and light bio-oils respectively, while the bio-oil obtained without catalyst contained only 34.9% at 400 °C.

这项研究的目的是开发低成本的金属负载催化剂，以提高生物油中碳氢化合物、酚类和酚类化合物的产量。在这项研究中，松木屑的热解在没有催化剂、HZSM-5 催化剂和 Ni/HZSM-5 催化剂的情况下在固定床反应器中在 400、500 和 600 °C 的温度下进行。采用湿浸法研制了金属负载型催化剂Ni/HZSM-5。研究了温度和催化剂类型对热解油产率和质量的影响。非催化热解在 500 °C 下产生 37.4 wt% 的生物油；然而，HZSM-5 和 Ni/HZSM-5 催化剂在 400 °C 下的生物油收率略低（分别为 36.6 和 35.3 wt%）。催化剂的存在通过生产大约 90% 以上的轻质生物油，而剩余的 10% 是重质生物油，从而提高了生物油的粘度。Ni/HZSM-5 催化剂表现出最好的催化剂活性，在重质和轻质生物油中，所需化合物的产率分别为 80.2% 和 49.7%，而在 400°C 下，没有催化剂的生物油仅含 34.9%。