A novel method for kinetics analysis of pyrolysis of hemicellulose, cellulose, and lignin in TGA and macro-TGA

被引：115

作者：

Zhou, Hui ^{[1
]}

Long, Yanqiu ^{[1
]}

Meng, Aihong ^{[1
]}

Chen, Shen ^{[1
]}

Li, Qinghai ^{[1
]}

Zhang, Yanguo ^{[1
]}

机构：

[1] Tsinghua Univ, Dept Thermal Engn, Minist Educ, Key Lab Thermal Sci & Power Engn, Beijing 100084, Peoples R China

来源：

RSC ADVANCES | 2015年 / 5卷 / 34期

关键词：

DAEM-REACTION MODEL; BIOMASS PYROLYSIS; THERMAL-DECOMPOSITION; ACTIVATION-ENERGY; HEATING RATES; TORREFACTION;

D O I：

10.1039/c5ra02715b

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The pyrolysis of three biomass components (hemicellulose, cellulose and lignin) was investigated in both a thermogravimetric analyzer (TGA) and self-designed macro-TGA. Slow and fast pyrolysis experiments were carried out in the macro-TGA. A novel peak analysis-least square method (PA-LSM) was developed to analyze the kinetics. The results showed that a complex pyrolysis reaction could be described by a series of parallel reactions, and each reaction could be described by a Gaussian peak. The kinetic parameters could be calculated via the least square method, and the Gaussian peak could be simulated very well. The slow pyrolysis in the TGA and macro-TGA is different, because of the heat transfer process. The pyrolysis and fast pyrolysis in macro-TGA also had considerable differences.

引用

页码：26509 / 26516

页数：8

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