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生物质化学工程 ›› 2018, Vol. 52 ›› Issue (1): 29-34.doi: 10.3969/j.issn.1673-5854.2018.01.005

• 研究报告 • 上一篇    下一篇

果壳生物质燃烧特性与动力学分析

范方宇1, 郑云武2, 黄元波2, 徐高峰2, 康佳2, 郑志锋2   

  1. 1. 西南林业大学 轻工与食品工程学院, 云南 昆明 650224;
    2. 云南省生物质高效利用工程实验室;云南省高校 生物质化学炼制与合成重点实验室;西南林业大学 材料工程学院, 云南 昆明 650224
  • 收稿日期:2017-01-03 出版日期:2018-01-30 发布日期:2018-02-06
  • 通讯作者: 郑志锋(1975-),男,福建福安人,教授,博士,博士生导师,主要从事生物质能源与材料研究;E-mail:zhengzhifeng@swfu.edu.cn。 E-mail:zhengzhifeng@swfu.edu.cn
  • 作者简介:范方宇(1979-),男,四川隆昌人,副教授,博士,主要从事生物质转化与利用研究;E-mail:ffy118@163.com
  • 基金资助:
    国家自然科学基金资助项目(31670599,31160147)

Combustion Characteristics and Kinetics Analysis of Biomass Shells

FAN Fangyu1, ZHENG Yunwu2, HUANG Yuanbo2, XU Gaofeng2, KANG Jia2, ZHENG Zhifeng2   

  1. 1. College of Light Industry and Food Science, Southwest Forestry University, Kunming 650224, China;
    2. Engineering Laboratory for Highly-efficient Utilization of Biomass, Yunnan Province;University Key Laboratory for Biomass Chemical Refinery and Synthesis, Yunnan Province;College of Materials Engineering, Southwest Forestry University, Kunming 650224, China
  • Received:2017-01-03 Online:2018-01-30 Published:2018-02-06

摘要: 为充分利用果壳生物质废弃物,采用热重分析对油茶壳、核桃壳、澳洲坚果壳进行了燃烧实验研究,考察了不同升温速率下3种果壳生物质的燃烧特性及动力学参数。结果表明:3种果壳生物质燃烧特性不同,但燃烧特性参数均随升温速率升高而增大;随着升温速率的增加,着火点、燃尽温度、最大燃烧速率、平均燃烧速率及综合燃烧特性指数提高;10℃/min时,油茶壳、核桃壳、澳洲坚果壳综合燃烧特性指数分别为0.56×10-7、1.18×10-7、0.88×10-7;3种果壳生物质的燃烧反应遵循一级反应动力学模型,相关系数(R2)均达0.93以上,低温阶段活化能为30.40~52.41 kJ/mol,高温阶段活化能为18.49~40.62 kJ/mol,低温阶段活化能均大于高温阶段。

关键词: 果壳生物质, 热重分析, 燃烧特性, 动力学

Abstract: In order to make full use of the biomass waste nut shells, thermogravimetry(TG) analysis was used to investigate the combustion characteristic and kinetics of Camellia oleifera shells, Juglans regia shells, and Macadamia ternifolia shells. The influences of different heating rates on the combustion behavior of three kinds of shells were analyzed, and the combustion characteristics and the kinetic parameters were determined. The results indicated that the combustion characteristic parameters of three kinds of biomass shells had obvious difference, but they all increased with the increase of heating rate. With the increase of heating rate, the ignition and burnout temperature, the maximum combustion rate, the average burning rate and the integrated combustion characteristic index improved. At the heating rate of 10 ℃/min, the integrated combustion characteristic indexes of Camellia oleifera shells, Juglans regia shells, and Macadamia ternifolia shells were 0.56×10-7, 1.18×10-7 and 0.88×10-7, respectively. The combustion kinetic of biomass shells was studied by using the first order reaction kinetics model. All correlation coefficients of the fitting curves were greater than 0.93. The activation energies of low temperature stage of Camellia oleifera shells, Juglans regia shells, and Macadamia ternifolia shells were 30.40-52.41 kJ/mol, respectively, and the activation energies at high temperature stage were 18.49-40.62 kJ/mol, respectively. And the activation energies of low temperature stage were higher than those of the high temperature stage.

Key words: biomass shell, thermogravimetry analysis, combustion characteristic, kinetic

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