Thermogravimetric characteristics and kinetics analysis of oil cake and torrefied biomass blends

被引：55

作者：

Cao, Liang ^{[1
,2
,3
]}

Yuan, Xingzhong ^{[1
,2
,4
]}

Jiang, Longbo ^{[1
,2
]}

Li, Changzhu ^{[3
]}

Xiao, Zhihua ^{[1
,2
]}

Huang, Zhongliang ^{[3
]}

Chen, Xiaohong ^{[4
]}

Zeng, Guangming ^{[1
,2
]}

Li, Hui ^{[3
]}

机构：

[1] Hunan Univ, Coll Environm Sci & Engn, Changsha 410082, Hunan, Peoples R China

[2] Hunan Univ, Minist Educ, Key Lab Environm Biol & Pollut Control, Changsha 410082, Hunan, Peoples R China

[3] Hunan Acad Forestry, Inst Biol & Environm Engn, Changsha 410004, Hunan, Peoples R China

[4] Collaborat Innovat Ctr Resource Conserving & Envi, Changsha 410083, Peoples R China

来源：

FUEL | 2016年 / 175卷

基金：

中国国家自然科学基金;

关键词：

Biomass; Oil cake; Torrefaction; Co-pyrolysis; Kinetics; PYROLYSIS CHARACTERISTICS; CO-PELLETIZATION; WOODY BIOMASS; SEWAGE-SLUDGE; TORREFACTION; CARBONIZATION; RESIDUES; BEHAVIOR; DENSITY; PELLETS;

D O I：

10.1016/j.fuel.2016.01.089

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

The pyrolysis characteristics and kinetics of the blends produced from the mixture of torrefied camphor-wood and caster bean cake (CAS) were determined by thermogravimetric analysis. Kissenger-Akahira-Sunose (KAS) and Coats-Redferm methods were applied for kinetic analysis. The results show that torrefaction can increase the maximum decomposition rate and smooth the pyrolysis reaction at 250-330 degrees C in the differential thermogravimetry (DTG) curves, and the additive of CAS can reduce the high maximum decomposition rate caused by torrefaction. The kinetic results suggest that the activation energy can be enhanced by torrefaction, while this can be lowered by the additive of CAS. It was found that the activation energy dropped dramatically for CAM torrefied at 300 degrees C by Coats-Redferm method, whereas KAS method showed the contrary trend. The pre-exponential factors by Coats-Redferm method were decreased by the processes of torrefaction and co-pelletization with CAS. In consideration of heating value and activation energy, 270 degrees C torrefaction and 30% CAS is conservatively selected as the optimum condition. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：129 / 136

页数：8

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