Fundamental Study on the Production of ＂Hyper Wood Pellet＂——Effect of Torrefaction Condition on Grinding and Pelletizing Properties
Fundamental Study on the Production of ＂Hyper Wood Pellet＂——Effect of Torrefaction Condition on Grinding and Pelletizing Properties作者机构：Forestry and Forest Products Research Institute Tsukuba 305-8687 Japan Fukui Prefectural Green Center Sakai 910-0336 Japan
出 版 物：《Journal of Energy and Power Engineering》 (能源与动力工程（美国大卫英文）)
年 卷 期：2013年第7卷第4期
页 面：705-710页
学科分类：0832[工学-食品科学与工程（可授工学、农学学位）] 081702[工学-化学工艺] 08[工学] 0817[工学-化学工程与技术] 083202[工学-粮食、油脂及植物蛋白工程]
主 题：Wood pellets torrefaction calorific value.
摘 要：In order to upgrade the conventional wood pellet, Japanese softwood and hardwood chips were torrefied at around 200-350℃, and pelletized. The characteristics of the torrefied material/pellets such as their calorific value, grinding energy, pelletizing energy and elemental composition, were also evaluated in this study. The calorific value rose with increasing torrefaction temperature and exceeded 25 MJ/kg （an increase of nearly 40% compared to the untreated state） for torrefaction at around 350℃. The grinding energy greatly decreased with increasing torrefaction temperature, and the reduction was larger for Japanese oak hardwood chips. The pelletization energy for the torrefied material tended to be slightly smaller than in the untreated case. People named such torrefied pellet as ＂hyper wood pellet＂.
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