Torrefaction behavior of hot-pressed pellets prepared from leucaena wood

被引：28
作者：
Setkit, Nattawut [1 ]
Li, Xian [2 ]
Yao, Hong [2 ]
Worasuwannarak, Nakorn [1 ]
机构：
[1] King Mongkuts Univ Technol Thonburi, Ctr Excellence Energy Technol & Environm, Joint Grad Sch Energy & Environm, Bangkok 10140, Thailand
[2] Huazhong Univ Sci & Technol, Sch Energy & Power Engn, State Key Lab Coal Combust, Wuhan 430074, Peoples R China
来源：
BIORESOURCE TECHNOLOGY | 2021年 / 321卷
关键词：
Torrefaction; Combustion; Biomass; Hot-pressed pellet; Black pellet; PYROLYSIS BEHAVIORS; ENERGY-CONSUMPTION; CO-PELLETIZATION; BIOMASS; SAWDUST; GASIFICATION; TEMPERATURE; HARDNESS; DENSITY; IMPACT;
D O I：
10.1016/j.biortech.2020.124502
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
In this study, torrefaction behavior of hot-pressed wood pellet prepared at 250 degrees C and compression pressure of 70 MPa was examined at temperature 260-300 degrees C. It was found that the torrefaction behavior of hot-pressed pellet (HP) was significantly different from that of Raw and cold-pressed pellet (CP). The mass yield and energy yield for torrefaction at 300 degrees C and 30 min holding time for HP were 54.5% and 84.4%, respectively. Whereas the mass yield and energy yield for torrefaction at 300 degrees C and 30 min for Raw were 41.5% and 58.1%, respectively. From the gas formation analysis, it was found that the dehydration and deoxygenation reactions were accelerated to produce a large amount of H2O and CO2 during the torrefaction of HP. It was judged that torrefaction of hot-pressed pellet was very effective to prepare high quality black pellet.
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页数：10
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