| 引用本文： |
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黎演明,黄志民,韦光贤,李俊晓.桉树皮和桑枝制备颗粒燃料成型工艺研究[J].广西科学,2015,22(6):658-663. [点击复制]
- LI Yan-ming,HUANG Zhi-min,WEI Guang-xian,LI Jun-xiao.Research on Pelletization Process of Eucalyptus Bark and Ramulus Mori as Biomass Pellet Fuel[J].Guangxi Sciences,2015,22(6):658-663. [点击复制]
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| 摘要: |
| [目的]利用广西栽桑养蚕和造纸加工行业每年产生的大量生物质剩余物,高效制备用于供热领域的颗粒燃料。[方法]以桉树皮(Eucalyptus Bank,EB)和桑枝(Ramulus Mori,RM)作为原料制备生物质颗粒燃料,分析生物质原料的种类、环模孔长径比、颗粒大小、原料含水率以及添加剂含量对颗粒燃料成型效率的影响。[结果]添加少量的木质素粘结剂可以降低生物质原料的成型压力,当原料的含水率为16%~20%,颗粒度为4 mm,环模孔长径比为4.5:1,粘结剂添加量为5%时两种生物质原料都可有效成型,所制备的颗粒燃料的密度 ≥ 1.1 g/cm3,机械耐久性 ≥ 95%。[结论]本研究工艺成型率高,获得的颗粒燃料符合生物质燃料要求。 |
| 关键词: 颗粒燃料 桉树皮 桑枝 成型工艺 |
| DOI： |
| 投稿时间：2015-04-14修订日期：2015-06-25 |
| 基金项目:南宁市科学研究与技术开发计划项目(20143136),广西科学院基本科研业务经费(13YJ22SW04,15YJ22SW04),广西科技合作项目(15104001-5)和广西自然科学基金项目(2015GXNSFBA139022)资助。 |
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| Research on Pelletization Process of Eucalyptus Bark and Ramulus Mori as Biomass Pellet Fuel |
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LI Yan-ming1, HUANG Zhi-min1, WEI Guang-xian2, LI Jun-xiao2
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| (1.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, Nanning, Guangxi, 530007, China;2.Guangxi GuiSen Bioenergy Technology Co., LTD, Nanning, Guangxi, 530100, China) |
| 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, particle size, moisture content and lignin additives content were 4.5:1, 4 mm, 16%~20% and 5%wt, respectively, the optimum conditions were obtained, by which the density and durability of produced pellets reached more than 1.1 g/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. |
| Key words: pellet fuel Eucalyptus Bank Ramulus Mori pelletization processes |
