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首页> 外文期刊>International journal of green energy >FRACTIONED PREPARATION OF BIO-OIL BY BIOMASS VACUUM PYROLYSIS
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FRACTIONED PREPARATION OF BIO-OIL BY BIOMASS VACUUM PYROLYSIS

机译：生物质真空热解法分馏生物油的制备

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摘要

The fractioned preparation of bio-oil by biomass pyrolysis in a vacuum pyrolysis apparatus and its characteristics were investigated. The off-gas was composed of CO_2 and CO with 69.77 vol% and 30.23 vol% separately at the temperature of 200℃. There were more volatile small molecules and high proportion of organic acids in the bio-oil produced below 300℃, and much water alleviated the acidity. The maximum amount of bio-oils of total liquid product was obtained between 300℃ and 400℃ with 47.81 wt%, in which the big molecules, such as aromatic compounds, increased and volatile compounds decreased for the enhanced secondary cracking, so H_2, CO, CH_4, _2, and C_3 rose remarkably. Above 500℃, the phenols with many side chains were easier to crack, which makes phenol and 1,2-benzenediol augmented by degradation of 2-methoxy-phenol. The longer retention time could increase the bio-oil yield at 300℃-500℃. Biomass vacuum pyrolysis can centralize the similar components of bio-oil and realized the preliminary fractioned preparation.
机译：研究了在真空热解装置中生物质热解法分馏制备生物油的特性。在200℃时，废气分别由CO_2和CO组成，分别为69.77 vol％和30.23 vol％。 300℃以下生产的生物油中挥发性小分子较多，有机酸比例较高，大量水分减轻了酸度。在300℃至400℃的温度下，液体产物的最大生物油含量为47.81 wt％，其中大分子（如芳香族化合物）增加，挥发性化合物减少，二次裂解增强，因此H_2，CO ，CH_4，_2和C_3显着上升。在500℃以上，具有许多侧链的苯酚更容易裂解，这使得苯酚和1,2-苯二醇被2-甲氧基-苯酚降解而增强。较长的保留时间可以提高300℃-500℃的生物油产量。生物质真空热解可以集中生物油的相似成分，实现了初步的分馏制备。

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  • 来源
    《International journal of green energy》 |2010年第3期|P.263-272|共10页
  • 作者

    Qi Zhang; Tiejun Wang; Chuangzhi Wu; Longlong Ma; Ying Xu;

  • 作者单位

    Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Key Laboratory of Renewable Energy and Gas Hydrate, CAS, Guangzhou, Guangdong 510640, China;

    Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Key Laboratory of Renewable Energy and Gas Hydrate, CAS, Guangzhou, China;

    Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Key Laboratory of Renewable Energy and Gas Hydrate, CAS, Guangzhou, China;

    Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Key Laboratory of Renewable Energy and Gas Hydrate, CAS, Guangzhou, China;

    Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Key Laboratory of Renewable Energy and Gas Hydrate, CAS, Guangzhou, China;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    biomass; vacuum pyrolysis; bio-oil; fractioned preparation, 2-methoxy-phenol;

    机译：生物质真空热解生物油分馏制剂2-甲氧基苯酚;

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