Research on Pelletization Process of Eucalyptus Bark and Ramulus Mori as Biomass Pellet Fuel
Author(s): LI Yan-ming, HUANG Zhi-min, WEI Guang-xian, LI Jun-xiao, State Key Laboratory of Non-food Biomass Enzyme Technology, National Engineering Research Center for Non-food Biorefinery, Guangxi Key Laboratory of Biorefinery, Guangxi Academy of Sciences, Guangxi GuiSen Bioenergy Technology Co.LTD
Pages: 658-663
Year: 2015 Issue: 6
Journal: Guangxi Sciences
Keyword: pellet fuel; Eucalyptus Bank; Ramulus Mori; pelletization processes;
Abstract: 【Objective】Large volumes of residual biomass(mainly eucalyptus bark and ramulus mori)are generated by sericulture industrial and paper processing plants in Guangxi.The aim of the present study was to use those biomass wastes to produce high-quality pellet fuel,in order to use them as fuel supply for thermal applications.【Methods】The key factors affecting the pelletizing molding ratio in Eucalyptus Bark and Ramulus Mori pelletization processes were identified.The impacts of raw material type,length-diameter ratio of ring die,pellet size,lignin additives content,particle size and moisture content on pelletizing molding ratio were studied using a ring die pellet mill.【Results】It was shown that the pelletizing pressure decreased exponentially with a small amount lignin additive.When length-diameter ratio of ring die,particlesize,moisture content and lignin additives content were 4.5∶1,4mm,16%~20% and 5%wt,respectively,the optimum conditions were obtained,by which the density and durability of produced pellets reached more than 1.1g/cm3 and 95%。 【Conclusion】Satisfied pelletizing molding ratio can be obtained under this optimum pelletizing process,and the pellets quality meets the criteria of biomass pellet fuel.
Pages: 658-663
Year: 2015 Issue: 6
Journal: Guangxi Sciences
Keyword: pellet fuel; Eucalyptus Bank; Ramulus Mori; pelletization processes;
Abstract: 【Objective】Large volumes of residual biomass(mainly eucalyptus bark and ramulus mori)are generated by sericulture industrial and paper processing plants in Guangxi.The aim of the present study was to use those biomass wastes to produce high-quality pellet fuel,in order to use them as fuel supply for thermal applications.【Methods】The key factors affecting the pelletizing molding ratio in Eucalyptus Bark and Ramulus Mori pelletization processes were identified.The impacts of raw material type,length-diameter ratio of ring die,pellet size,lignin additives content,particle size and moisture content on pelletizing molding ratio were studied using a ring die pellet mill.【Results】It was shown that the pelletizing pressure decreased exponentially with a small amount lignin additive.When length-diameter ratio of ring die,particlesize,moisture content and lignin additives content were 4.5∶1,4mm,16%~20% and 5%wt,respectively,the optimum conditions were obtained,by which the density and durability of produced pellets reached more than 1.1g/cm3 and 95%。 【Conclusion】Satisfied pelletizing molding ratio can be obtained under this optimum pelletizing process,and the pellets quality meets the criteria of biomass pellet fuel.
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