Thermal pyrolysis of different biomass (sawdust, straw) and plastic (polypropylene, poly vinyl chloride) and synergistic effects of co-pyrolysis of biomass and plastic were investigated with TGA. In fixed-bed reactor the influence of plastic content on co-pyrolysis of biomass and plastic was discussed, and the produced bio-oil was analyzed with elemental analysis and GC-MS. The results showed that significant synergy was present in the co-pyrolysis process of biomass and plastic, especially in the co-pyrolysis process of sawdust and polypropylene the synergistic effect was the most prominent. When the content of polypropylene was 80%, bio-oil yield was the highest, obviously higher than that of separate pyrolysis. And the results of elemental and GC-MS analysis showed that the bio-oil had a higher hydrogen content and its calorific value was equal to that of the crude oil equivalent.%通过热重分析不同生物质(木屑和秸秆)单独热解以及与塑料(PP和dcPVC)共热解时的热解行为,研究了生物质与塑料共热解过程中的协同作用.在固定床反应器中考察了塑料的含量对生物质/塑料共热解的影响,最后通过元素分析和GC-MS对所得生物油进行了分析.研究结果表明:生物质和塑料共热解过程中存在明显的协同作用.木屑和PP共热解过程中的协同作用最为显著,当PP含量为80％时,所得生物油的产率最高,明显高于两者单独热解得到的生物油.元素分析和GC-MS分析结果表明:木屑和PP所得生物油的含氢量较高,所得到生物油的热值与石化燃油的相近.
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