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生物质化学工程 ›› 2010, Vol. 44 ›› Issue (5): 25-29.

• 论文 • 上一篇    下一篇

等转化率法研究蔗渣热解过程动力学

段云1,2, 李杰2, 刘欲文2, 汪存信2, 黄日波1   

  1. 1. 广西科学院, 国家非粮生物质能源工程技术研究中心, 广西 南宁 530007;2. 武汉大学, 化学与分子科学学院, 湖北 武汉 430072
  • 收稿日期:2010-05-19 修回日期:1900-01-01 出版日期:2010-09-30 发布日期:2010-09-30

Kinetic Analysis on the Thermal Decomposition of Bagasse by Iso-conversional Method

DUAN Yun1,2, LI Jie2, LIU Yu-wen2, WANG Cun-xin2, HUANG Ri-bo1   

  1. 1. National Engineering Research Center for Non-food Bimass Energy, Guangxi Academy of Sciences, Nanning 530007, China;2. College of Chemistry and Molecular Science, Wuhan University, Wuhan 430072, China
  • Received:2010-05-19 Revised:1900-01-01 Online:2010-09-30 Published:2010-09-30

摘要: 运用热重分析法在4个不同升温速率下研究了蔗渣在氮气中的热解过程,用等转化率法计算出热解的活化能(Ea)从102.40 kJ/mol逐渐增大到161.24 kJ/mol。用主曲线法判断活化能不变区域的动力学模型机理函数为1/2级简单反应,机理函数F0.5(α)=1-(1-α)1/2,指前因子A=(5.991±0.947)×106 s-1

关键词: 蔗渣, 热重, 动力学分析, 等转化率法

Abstract: The thermal decomposition of bagasse in flowing nitrogen at 4 different heating rates was studied by TG. The apparent activation energy of thermal processing ranged from 102.40 kJ/mol to 161.24 kJ/mol was calculated by iso-conversional method. During the zone of activation energy was nearly constant, and the kinetic model function was 1/2 order simplex reaction, model function F0.5(α)=1-(1-α)1/2, the pre-exponential factor A is (5.991±0.947)×106 s-1.

Key words: bagasse, TG, kinetic analysis, iso-conversional method

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