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首页> 外文期刊>Energy Conversion & Management >Genetically engineered hybrid poplars for the pyrolytic production of bio-oil: Pyrolysis characteristics and kinetics
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Genetically engineered hybrid poplars for the pyrolytic production of bio-oil: Pyrolysis characteristics and kinetics

机译：用于生物油热解的基因工程杂交杨树：热解特性和动力学

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摘要

In this study, hybrid poplars were genetically engineered to increase their biomass volume and change their biochemical composition to improve the pyrolytic production of bio-oil. Wild-type hybrid poplars (WT) and genetically engineered hybrid poplars (TP) were comparatively investigated with regard to their pyrolysis characteristics and kinetics via thermogravimetric analysis (TGA) and isothermal pyrolysis within a micro tubing reactor. Model-free methods were used to determine the activation energy for the thermal decomposition of the WT and TP samples. The results showed that the activation energy of the WT sample was always greater than that of the TP sample at the same level of conversion. Isothermal pyrolysis experiments of the two biomass samples were performed at various temperatures (360-400 degrees C) and durations (1-5 min) using a micro tubing reactor. The pyrolytic product distributions and chemical compositions were compared. The obtained results showed that the TP sample yielded a higher quantity of bio-oil compared to the WT sample under the same conditions with different chemical compositions. A reaction network and quantitative kinetic model were proposed for pyrolysis of the WT and TP samples. Kinetic parameters were obtained through an optimization function and used to explore the parameter space in order to predict product yields as a function of reaction time and temperature for both WT and TP feedstocks.
机译：在这项研究中，对杂交杨树进行了基因工程改造，以增加其生物量，并改变其生化组成，以提高生物油的热解产量。通过热重分析（TGA）和微管反应器中的等温热解，对野生型杂种杨（WT）和基因工程杂种杨（TP）的热解特性和动力学进行了比较研究。使用无模型方法确定WT和TP样品热分解的活化能。结果表明，在相同转化水平下，WT样品的活化能始终大于TP样品的活化能。使用微管反应器在各种温度（360-400摄氏度）和持续时间（1-5分钟）下进行了两种生物质样品的等温热解实验。比较了热解产物的分布和化学组成。所获得的结果表明，在相同条件下具有不同化学组成的TP样品比WT样品产生的生物油量更高。提出了反应网络和定量动力学模型用于WT和TP样品的热解。通过优化函数获得动力学参数，并将其用于探索参数空间，以便预测作为WT和TP原料的反应时间和温度的函数的产物收率。

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  • 来源
    《Energy Conversion & Management》 |2017年第12期|48-59|共12页
  • 作者

    Vo The Ky; Cho Jin-Seong; Kim Seung-Soo; Ko Jae-Heung; Kim Jinsoo;

  • 作者单位

    Kyung Hee Univ, Dept Chem Engn, 1732 Deogyeong Daero, Yongin 17104, Gyeonggi Do, South Korea;

    Kyung Hee Univ, Dept Plant & Environm New Resources, 1732 Deogyeong Daero, Yongin 17104, Gyeonggi Do, South Korea;

    Kangwon Natl Univ, Dept Chem Engn, 346 Joongang Ro, Samcheok 245711, Gangwon Do, South Korea;

    Kyung Hee Univ, Dept Plant & Environm New Resources, 1732 Deogyeong Daero, Yongin 17104, Gyeonggi Do, South Korea;

    Kyung Hee Univ, Dept Chem Engn, 1732 Deogyeong Daero, Yongin 17104, Gyeonggi Do, South Korea;

  • 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

    TGA; Pyrolysis; Hybrid poplar; Model-free method; Reaction network; Kinetic model;

    机译：TGA;热解;杂种杨;无模型法;反应网络;动力学模型;

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