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热解过程中生物质半焦比热容的测定

陈群 庞任重 陈熙 杨锐明 禚玉群 陈昌和

陈群, 庞任重, 陈熙, 杨锐明, 禚玉群, 陈昌和. 热解过程中生物质半焦比热容的测定[J]. 燃料化学学报(中英文), 2014, 42(09): 1040-1046.
引用本文: 陈群, 庞任重, 陈熙, 杨锐明, 禚玉群, 陈昌和. 热解过程中生物质半焦比热容的测定[J]. 燃料化学学报(中英文), 2014, 42(09): 1040-1046.
CHEN Qun, PANG Ren-zhong, CHEN Xi, YANG Rui-ming, ZHUO Yu-qun, CHEN Chang-he. Determination of specific heat capacity of biomass char during pyrolysis[J]. Journal of Fuel Chemistry and Technology, 2014, 42(09): 1040-1046.
Citation: CHEN Qun, PANG Ren-zhong, CHEN Xi, YANG Rui-ming, ZHUO Yu-qun, CHEN Chang-he. Determination of specific heat capacity of biomass char during pyrolysis[J]. Journal of Fuel Chemistry and Technology, 2014, 42(09): 1040-1046.

热解过程中生物质半焦比热容的测定

基金项目: 国家自然科学基金(51276099);清华大学自主科研计划(2011Z02147)。
详细信息
    通讯作者:

    陈群(1976-),男,副研究员,主要从事生物质能源开发利用及土壤改良生态修复研究,E-mail:qunchen@tsinghua.edu.cn。

  • 中图分类号: TK6

Determination of specific heat capacity of biomass char during pyrolysis

  • 摘要: 采用热重-差示量热扫描法(TG-DSC)测量了生物质和一次热解焦炭及不同转化率下半焦的比热容,建立了计算半焦比热容的数学模型并与实验测量结果进行了对比。结果表明,生物质样品和热解焦炭的比热容在60~200℃随温度升高而线性增大。生物质焦炭的比热容低于生物质样品的比热容,从60℃时的1.2 J/(g·K)增大到200℃附近的1.8~2.0 J/(g·K)。生物质半焦比热容随热解转化率的提高而降低。由半焦比热容数学模型计算得到的结果在接近150~200℃时与实验测定的半焦比热容数值基本一致。
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出版历程
  • 收稿日期:  2014-03-29
  • 修回日期:  2014-06-11
  • 刊出日期:  2014-09-30

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