Pyrolysis kinetics and decomposition characteristics of pine trees

被引:104
作者
Kim, Seung-Soo [1 ]
Kim, Jinsoo [2 ]
Park, Young-Hun [2 ]
Park, Young-Kwon [3 ]
机构
[1] Kangwon Natl Univ, Dept Chem Engn, Samcheok 363883, Gangwon Do, South Korea
[2] Kyung Hee Univ, Dept Chem Engn, Yongin 446701, Gyeonggi Do, South Korea
[3] Univ Seoul, Sch Environm Engn, Seoul 130743, South Korea
关键词
Biomass; Pine tree; Lump kinetic model; Thermogravimetric analysis; BIOMASS; WASTES; COMPONENTS; FUELS; WOOD; OIL;
D O I
10.1016/j.biortech.2010.07.094
中图分类号
S2 [农业工程];
学科分类号
0828 ;
摘要
Pine trees comprise over 35% of the forests in Korea, since 1989, pine wilt disease introduced via the Japanese pine sawyer has been infecting many of these trees. As a renewable resource, pine can be converted to bio-oil, gas, and char through pyrolysis. In this study, the pyrolysis characteristics of pine trees were investigated using thermogravimetric analyzer, with most of the materials decomposing between 330 and 370 degrees C at heating rates of 5-20 degrees C/min. The apparent activation energy increased from 145 to 302 kJ mol(-1) with increasing pyrolysis conversion. The kinetics of pine tree pyrolysis were experimentally and mathematically evaluated. The kinetic parameters were determined using nonlinear least-squares regression of the experimental data assuming first-order kinetics. It was found from the kinetic rate constants that the predominant reaction pathway was A (pine) to gas (C(1)-C(4)) rather than A to bio-oil at temperatures of 330-370 degrees C. (c) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码:9797 / 9802
页数:6
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