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首页> 外文期刊>Fuel >Thermal decomposition of bio-oil: Focus on the products yields under different pyrolysis conditions
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Thermal decomposition of bio-oil: Focus on the products yields under different pyrolysis conditions

机译：生物油的热分解：关注不同热解条件下的产品产量

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摘要

In this study, pyrolysis process of wood bio-oil was studied. The effects of temperature in the range 550-1000℃, heating rate in the range 2-2000℃ s~(-1) and ash content of the bio-oil on char, tar and gas yields were investigated. The main gas species generated are quantified by Micro-GC: H_2, CO, CO_2, CH_4 and trace amounts of C_2H_4 and C_2H_6.A temperature increase from 550 to 1000℃ enhanced greatly the gas yield, whilst solid and liquid yields decreased significantly. The heating rate was varied in a range covering rapid pyrolysis using the Horizontal Tubular Reactor (HTR) to flash pyrolysis using an Entrained Flow Reactor (EFR). A decrease of char yield from 11 wt.% down to 4 wt.% was observed when heating rate is changed from 2 to 100℃ s~(-1). In EFR a flash heating rate of 2000℃ s~(-1) led to a char yield as low as 1 wt.%.Bio-oil with a natural ash contents of 0.05 wt.% and bio-oil added with 3 wt.% of ash were finally pyr-olyzed. Ash seems to favor re-polymerization reactions that lead to an increase in char yield. A decrease in the amount of gas is observed when ash is added while an increase was a priori expected.
机译：本研究对木材生物油的热解过程进行了研究。研究了550-1000℃的温度，2-2000℃s〜（-1）的升温速率以及生物油的灰分含量对焦炭，焦油和煤气收率的影响。产生的主要气体种类通过Micro-GC定量：H_2，CO，CO_2，CH_4和痕量的C_2H_4和C_2H_6。温度从550℃升高到1000℃大大提高了气体产率，而固体和液体产率显着降低。加热速率在一个范围内变化，该范围涵盖了使用卧式管式反应器（HTR）进行快速热解到使用夹带流反应器（EFR）进行快速热解的范围。当加热速率从2℃更改为100 s〜（-1）时，炭的收率从11 wt。％下降到4 wt。％。在EFR中，闪蒸加热速率为2000℃s〜（-1）导致焦炭产率低至1 wt。％。天然灰分含量为0.05 wt。％的生物油和3 wt。％的生物油被添加。 ％的灰分最终被热解。灰分似乎有利于导致焦炭产率提高的再聚合反应。当预先添加灰分时，观察到气体量减少。

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  • 来源
    《Fuel》 |2012年第2012期|p.274-281|共8页
  • 作者

    Younes Chhiti; Sylvain Salvador; Jean-Michel Commandre; Francois Broust;

  • 作者单位

    Ecole des Mines d'Albi - Carmaux, Centre RAPSODEE, FRE CNRS 3213, Campus Jarlard, route de Teillet 81013, Albi CT Cedex 09, France;

    Ecole des Mines d'Albi - Carmaux, Centre RAPSODEE, FRE CNRS 3213, Campus Jarlard, route de Teillet 81013, Albi CT Cedex 09, France;

    CIRAD, UR Biomasse Energie, TA B-42/16, 73, Avenue J.-F. Breton, 34398 Montpellier Cedex 5, France;

    CIRAD, UR Biomasse Energie, TA B-42/16, 73, Avenue J.-F. Breton, 34398 Montpellier Cedex 5, France;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    bio-oil; pyrolysis; char; gas; tar;

    机译：生物油热解字符加油站;柏油;

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