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废轮胎与竹子共热解特性及热解动力学研究

白洋 路希正 马洪亭

华中科技大学学报(自然科学版)2025,Vol.53Issue(7):74-80,93,8.
华中科技大学学报(自然科学版)2025,Vol.53Issue(7):74-80,93,8.DOI:10.13245/j.hust.250692

废轮胎与竹子共热解特性及热解动力学研究

Study on the co-pyrolysis characteristics and kinetics of waste tires and bamboo

白洋 1路希正 1马洪亭1

作者信息

  • 1. 天津大学环境科学与工程学院 天津 300350
  • 折叠

摘要

Abstract

The TG-DTA differential thermal gravimetric analyzer produced by Shimadzu Corporation in Japan was used to experimentally study the thermogravimetry(TG)and differential TG(DTG)curves of waste tires,bamboo,and waste tire bamboo mixtures(mixing ratios of 5:1 and 5:2,respectively).The results show that the TG curves of the four components show a consistent trend.As the heating rate increases,the TG curves shift to the right as a whole.Under the same conditions,the higher the bamboo content,the higher the degree of pyrolysis.There are two weight loss peaks on the DTG curves of the four experimental samples,and the higher the heating rate,the higher the peak temperature.The average apparent activation energies of waste tires,bamboo,and two mixtures calculated by three model free function methods,KAS,FWO and Starink methods,are close,with a maximum relative deviation of no more than 10%.Moreover,as the bamboo content increases,the average activation energy gradually increases.When using the Coats Redfern method to fit the function,the fitting coefficients of waste tires and two mixed samples at conversion rates less than 0.6 are smaller than those at conversion rates greater than 0.6,while the opposite is true for bamboo samples.The pyrolysis processes of waste tires,bamboo,and waste tire bamboo mixtures(mixing ratios of 5:1 and 5:2,respectively)can be respectively described by the D3,F3,G-B and D3,D2,D3 kinetic functions.

关键词

废旧轮胎/竹子/共热解/反应动力学/热解机理函数

Key words

waste tires/bamboo/co-pyrolysis/reaction kinetics/thermal decomposition mechanism function

分类

能源与动力

引用本文复制引用

白洋,路希正,马洪亭..废轮胎与竹子共热解特性及热解动力学研究[J].华中科技大学学报(自然科学版),2025,53(7):74-80,93,8.

基金项目

国家自然科学基金面上项目(51876137). (51876137)

华中科技大学学报(自然科学版)

OA北大核心

1671-4512

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