Experimental study and kinetics analysis on pyrolysis characteristics of corn stalk

HUI Shi'en; LIANG Ling; FAN Qingwei; LIU Changchun; CHEN Zhiliang; JING Qiangzheng

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Experimental study and kinetics analysis on pyrolysis characteristics of corn stalk

Thermal Power Generation Vol. 43, Issue 4, Pages: 69-75(2014)

更新时间：2025-09-28

- Experimental study and kinetics analysis on pyrolysis characteristics of corn stalk
- 作者机构：
  
  1. 西安交通大学能源与动力工程学院
  2. 西安热工研究院有限公司
  3. 西安特种设备检验检测院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK6
- Published：2014
- 稿件说明：
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HUI Shi'en, LIANG Ling, FAN Qingwei, et al. Experimental study and kinetics analysis on pyrolysis characteristics of corn stalk[J]. Thermal Power Generation, 2014, 43(4): 69-75.
DOI：

HUI Shi'en, LIANG Ling, FAN Qingwei, et al. Experimental study and kinetics analysis on pyrolysis characteristics of corn stalk[J]. Thermal Power Generation, 2014, 43(4): 69-75. DOI：

摘要

采用TA-Q500型热重分析仪

在升温速率分别为20、40、80、100℃/min的条件下对玉米秸秆进行了热解实验

研究其热解特性

并分别应用Popescu法、Flynn-WallOzawa(FWO)法和Kissinger-Akahira-Sunose(KAS)法求解了热解反应动力学的最概然机理函数、活化能与指前因子。结果表明:反Jander方程三维扩散机理为理想的最概然机理函数;随着升温速率的增加

样品失重曲线向高温侧移动

初始热解温度、失重高峰温度及终止温度均有所升高

热解反应活化能也呈逐渐增加趋势。

Abstract

To study the pyrolysis characteristics of corn stalk and determine the reaction kinetic parameters

experiments were conducted on a thermogravimetric analyzer at four heating rates of 20℃/min

40℃/min

80℃/min and 100 ℃/min

respectively.Three methods of Popescu

FWO and KAS were applied to obtain the most probable mechanism function

activation energy and preexponential factor.The kinetic analysis shows that the anti-Jander equation is the best most probable mechanism function and the activation energy has an increasing trend with the heating rate. The experimental results show that

TG curves of the corn stalk move to high temperature zone with the increasing heating rate

meanwhile

the initial and final temperature of the pyrolysis process and the peak temperature of weightlessness also increases.

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