Torrefaction and low temperature carbonization of oil palm fiber and eucalyptus in nitrogen and air atmospheres

被引:186
作者
Lu, Ke-Miao [1 ]
Lee, Wen-Jhy [1 ]
Chen, Wei-Hsin [2 ]
Liu, Shih-Hsien [3 ]
Lin, Ta-Chang [1 ]
机构
[1] Natl Cheng Kung Univ, Dept Environm Engn, Tainan 701, Taiwan
[2] Natl Univ Tainan, Dept Greenergy, Tainan 700, Taiwan
[3] China Steel Corp, Iron & Steel Res & Dev Dept, Kaohsiung 812, Taiwan
关键词
Torrefaction; Low-temperature carbonization; Air and nitrogen; Oil palm fiber and eucalyptus; Energy and solid yields; PYROLYSIS; BIOMASS; GRINDABILITY; PRETREATMENT; IMPACT; WOOD; COMBUSTION; FUELS;
D O I
10.1016/j.biortech.2012.07.096
中图分类号
S2 [农业工程];
学科分类号
0828 ;
摘要
Torrefaction is a pretreatment method for upgrading biomass as solid fuels. To provide flexible operations for effectively upgrading biomass at lower costs, the aim of this study was to investigate the properties of oil palm fiber and eucalyptus pretreated in nitrogen and air atmospheres at temperatures of 250-350 degrees C for 1 h. Based on energy and solid yield and introducing an energy-mass co-benefit index (EMCI), oil palm fiber pretreatment under nitrogen at 300 degrees C provided the solid fuel with higher energy density and less volume compared to other temperatures. Pretreatment of oil palm fiber in air resulted in the fuel with low solid and energy yields and is therefore not recommended. For eucalyptus, nitrogen and air can be employed to upgrade the biomass, and the suggested temperatures are 325 and 275 degrees C, respectively. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码:98 / 105
页数:8
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