| 新鲜生物质催化热解特性的研究 |
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| 引用本文： | 闵凡飞,张明旭,陈清如,陈明强.新鲜生物质催化热解特性的研究[J].林产化学与工业,2008,28(3):28-34. |
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| 作者姓名： | 闵凡飞 张明旭 陈清如 陈明强 |
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| 作者单位： | 1. 安徽理工大学,材料学院,安徽,淮南,232001
2. 中国矿业大学,化工学院,江苏,徐州,221008 |
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| 基金项目： | 安徽省教育厅自然科学基金，国家自然科学基金 |
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| 摘 要： | 采用TG/DTG/DTA技术考察了新鲜小麦秸秆(WS)和玉米秸秆(CS)以K2CO3、Na2CO3、ZnCl2和CaO为催化剂时的热解特性,分析了新鲜生物质的热解特性,催化剂种类及用量对新鲜生物质热解特性的影响。结果表明,新鲜生物质的热解特性优于存放一定时间的生物质;加入催化剂后新鲜生物质的热解挥发分在不同温度区间重新分配,主要热解区间向低温推移,生物质的热解挥发分产率增加;其中CaO对于提高热解挥发分产率最有利;K2CO3和Na2CO3对生物质热解特性的影响规律一致;随着K2CO3用量增加,热解挥发分产率增加,起始热解温度向高温推移,主要热解区间温度降低,K2CO3用量为10%～15%时对生物质的热解最为有利。
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| 关 键 词： | 新鲜生物质 催化热解 催化剂 TG/DTG/DTA |
Study on Catalytic Pyrolysis of Fresh Biomass |
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| MIN Fan-fei,ZHANG Ming-xu,CHEN Qing-ru,CHEN Ming-qiang.Study on Catalytic Pyrolysis of Fresh Biomass[J].Chemistry & Industry of Forest Products,2008,28(3):28-34. |
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| Authors: | MIN Fan-fei ZHANG Ming-xu CHEN Qing-ru CHEN Ming-qiang |
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| Abstract: | Catalytic pyrolysis of fresh corn stalk(CS)and wheat straw(WS)have been carried out by TG/DTG/DTA technology in the atmosphere of N2 with K2CO3,Na2CO3,ZnCl2 and CaO as catalyst,respectively.Catalytic pyrolysis of fresh biomass and the influences of the kinds of catalyst and the catalyst weight/biomass weight ratios on pyrolysis of fresh biomass were analyzed.The results indicate that pyrolysis characteristic of fresh biomass is better than stored biomass.The addition of catalysts leads to redistributing of volatile of fresh biomass during pyrolysis in different temperature ranges,and the main pyrolysis of biomass was moved to lower temperature range,with increased yields of volatile.The addition of calcium oxide leads to the largest yields of volatile.The influences of K2CO3 and Na2CO3 on biomass pyrolysis characteristics are similar.Increasing of K2CO3 weight/biomass weight ratio results in increasing of yields of volatile,increasing of initial thermal decomposition temperature and increasing of main pyrolysis temperature range of biomass.It is suitable for hydrodysis of biomass at K2CO3 dose of 10 %-15 %. |
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| Keywords: | fresh biomass catalytic pyrolysis catalyst TG/DTG/DTA |
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