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Co-pyrolysis of biomass and waste plastic for biofuel in fixed-bed reactor

XU Yi1,2,CHEN Yu2,HUA Derun2,WU Yulong2,YANG Mingde2,CHEN Zhen2,TANG Na1   

  1. 1College of Marine Science and Engineering,Tianjin Science and Technology University,Tianjin 300457,China; 2Institute of Nuclear and New Energy Technology,Tsinghua University,Beijing 100084,China
  • Online:2013-03-05 Published:2013-03-05

固定床反应器中生物质/废塑料共热解制备燃料油

徐 艺1,2,陈 宇2,华德润2,吴玉龙2,杨明德2,陈 镇2,唐 娜1   

  1. 1天津科技大学海洋科学与工程学院,天津 300457;2清华大学核能与新能源技术研究院,北京 100084

Abstract: 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.

Key words: biomass, waste plastic, co-pyrolysis, biofuel, synergistic effects

摘要: 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。

关键词: 生物质, 废塑料, 共热解, 燃料油, 协同作用

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