煤与生物质共热解的TGA-FTIR研究  

STUDY ON CO-PYROLYSIS BEHAVIOR OF COAL AND BIOMASS BLENDING BY USING TGA-FTIR

作　　者：朱孔远[1] 谌伦建[1] 黄光许[1] 马爱玲[1] 

机构地区：[1]河南理工大学材料科学与工程学院,河南焦作硕士生454000

出　　处：《煤炭转化》2010年第3期10-14,37,共6页Coal Conversion

基　　金：河南省重点科技攻关项目(082102340028);河南理工大学研究生学位论文创新基金资助项目(2008-M-12)

摘　　要：利用热重分析仪和傅里叶红外光谱仪对煤与木屑混合物在惰性气氛中进行了共热解研究,考察煤阶及煤与生物质掺混比例对热解过程的影响.结果表明,煤与木屑共热解特性并不是单独煤和单独木屑热解特性的简单叠加;高阶煤与生物质共热解更有利于协同反应的发生.通过对红外吸收光谱的分析发现,木屑与不同煤化程度煤共热解析出气体的成分和含量也不同,说明煤阶对煤与生物质共热解的气态产物有明显影响,也从侧面揭示了混合物热解过程中煤与木屑之间发生了相互作用.The pyrolysis characteristics of the coals and sawdust in an inertia atmosphere were investigated using a thermo-gravimetric apparatus with a on-line infrared-spectrum analyzer. The influence of blend ratio and coal rank on the pyrolysis of coal with sawdust blends was examined. The experimental results show that the pyrolysis characteristics of coal with sawdust blends are not similar to that of every single sample addition of single coal with single sawdust. The high rank coal with sawdust is more beneficial to interaction effects than low rank coal. By investigating the infrared spectrogram, there is a difference in the gas yield between different coals with sawdust. It is discovered that the coal rank has important influence on the pyrolysis of the blends. The interaction effects in the co-pyrolysis of coals and sawdust are suggested.

关 键 词：生物质 煤 共热解 热重-红外光谱联用 

分 类 号：TQ530.2[化学工程—煤化学工程] TK6[动力工程及工程热物理—生物能]