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Thermal and kinetic behaviors of biomass and plastic wastes in co-pyrolysis

机译：共热解过程中生物质和塑料废物的热力学行为

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摘要

In this study, co-pyrolysis characteristics and kinetics of biomass-plastic blends were investigated. Cotton stalk, hazelnut shell, sunflower residue, and arid land plant Euphorbia rigida, were blended in definite ratio (1:1, w/w) with polyvinyl chloride (PVC) and polyethylene terephthalate (PET). Experiments were conducted with a heating rate of 10 ℃ min~(-1) from room temperature to 800 ℃ in the presence of N_2 atmosphere with a flow rate of 100 cm~3 min~(-1). After thermal decomposition in TGA, a kinetic analysis was performed to fit thermogravimetric data and a detailed discussion of co-pyrolysis mechanism was achieved. Experimental results demonstrated that the structural differences between biomass and plastics directly affect their thermal decomposition behaviors. Biomass pyrolysis generally based on three main steps while plastic material's pyrolysis mechanism resulted in two steps for PET and three steps for PVC. Also, the required activation energies needed to achieve the thermal degradation for plastic were found higher than the biomass materials. In addition, it can be concluded that the evaluation of plastic materials together with biomass created significant changes not only for the thermal behaviors but also for the kinetic behaviors.
机译：在这项研究中，研究了生物质-塑料共混物的共热解特性和动力学。将棉秆，榛子壳，葵花渣和干旱的陆地植物大戟一丁以一定比例（1：1，w / w）与聚氯乙烯（PVC）和聚对苯二甲酸乙二醇酯（PET）混合。实验是在N_2气氛下，以100 cm〜3 min〜（-1）的流速从室温到800℃加热10℃min〜（-1）进行的。在TGA中热分解后，进行动力学分析以拟合热重数据，并完成了共热解机理的详细讨论。实验结果表明，生物质和塑料之间的结构差异直接影响它们的热分解行为。生物质热解通常基于三个主要步骤，而塑料的热解机理导致PET分为两个步骤，PVC分为三个步骤。同样，发现实现塑料热降解所需的活化能要高于生物质材料。此外，可以得出结论，塑料材料和生物质的评估不仅对热行为而且对动力学行为产生了显着变化。

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  • 来源
    《Energy Conversion & Management》 |2013年第11期|263-270|共8页
  • 作者

    OEzge Cepeliogullar; Ayse E. Puetuen;

  • 作者单位

    Department of Chemical Engineering, Faculty of Chemical and Metallurgical Engineering, Istanbul Technical University, 34469 Istanbul, Turkey;

    Department of Chemical Engineering, Faculty of Engineering, Anadolu University, 26555 Eskisehir, Turkey;

  • 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

    Co-pyrolysis; Biomass; Plastic; TGA; Kinetics;

    机译：共热解;生物质塑料;TGA;动力学;

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