基于三组分的生物质快速热解实验研究  

EXPERIMENTAL STUDY OF BIOMASS RAPID PYROLYSIS BASED ON THREE COMPONENTS

作　　者：赵坤[1] 肖军[1] 沈来宏[1] 瞿婷婷[1] 

机构地区：[1]东南大学热能工程研究所,南京210096

出　　处：《太阳能学报》2011年第5期710-717,共8页Acta Energiae Solaris Sinica

基　　金：国家自然科学基金重大项目(20590367);国家重点基础研究发展规划项目(2007CB210208;2010CB732206);新世纪人才支持计划(NCET-05-0470)

摘　　要：在管式炉内对纤维素、半纤维素和木质素进行热解实验研究,考察热解温度对于热解产物(焦炭、焦油和不凝性气体)分布的影响。实验结果表明:随温度的升高,三组分热解产生的焦炭产量不断降低,气体产量不断增加,焦油产量先升后降,存在一最佳反应温度。不凝气体组分随温度变化有不同的变化趋势,焦油的组分也不同。选取稻秸和玉米秸秆为原料,按照这两种生物质中三组分含量的不同将纤维素、半纤维素和木质素的产物进行叠加,并与稻秸和玉米秆的热解实验结果作对比,分析三组分含量对于热解产物的影响。结果表明:按照三组分叠加的方法来考察生物质的热解在一定程度上是可行的,产物产量的总体趋势一致,在产量上稍有差异。The rapid pyrolysis experimental research on biomass components（cellulose, hemicell-ulose and lignin）was carried out in the tube furnace, the effect of tempertature on the pyrolysis product（char, tar and uncondensable gas） yields was investigated. The results showed that the yield of three components pyrolysis char decreases with increasing re- active temperature, while the ineondensable gas yield increases with increasing temperature, the tar yield increases first but decreases with increasing temperature and existed an optimal reaction temperature. The constituents of ineondensable gas and tar are different with increasing temperture. Choose rice straw and cornstalk as materials, according to them dif- ferent contents of cellulose, hemicellulose and lingin, superposition method was used to eaeulate product yield. By com- paring the experimental and calculational results, the additivity law allow the product yields of a biomass to be correlated with its fractions of three components to some extent, the overall trend of the product yields are consistent but have a little discrepancies in the quantity.

关 键 词：生物质 纤维素 半纤维素 木质素 热解 叠加法 

分 类 号：TK6[动力工程及工程热物理—生物能]