苎麻骨热解制备燃料气的研究  

STUDY ON FUEL GAS PRODUCED FROM PYROLYSIS OF RAMIE RESIDUES

作　　者：张乐观[1,2] 成功[1] 肖波[1] 江程程[1] 许涛[1] 张艳丽[1] 

机构地区：[1]华中科技大学环境科学与工程学院,武汉430074 [2]河南城建学院环境与市政工程系,平顶山467001

出　　处：《太阳能学报》2013年第10期1841-1846,共6页Acta Energiae Solaris Sinica

摘　　要：研究苎麻麻骨热解的动力学行为并考查其在旋风炉中热解制取燃料气的可行性。采用热重分析在不同升温速率下（5、10、15、20℃／min）对麻骨热失重过程，研究显示：热分解的主要阶段发生在250～390℃之间，且最大失重速率随升温速率的提高而升高。动力学研究表明麻骨热解的表观活化能在200—258kJ／mol范围内。此外，麻骨能够作为一种给料在旋风炉中进行内热式热解反应。热解过程中的炉膛温度、燃气成分及碳转化率均显著受空气当量比（职）的影响。当船在0．21—0．35之间时，燃气产率为1．07～2．08Nm^3／kg，燃气热值达到3350～4798kJ／Nm^3。The dynamic behavior of pyrolysis of ramie residues and the characteristics of fuel gas produced in a cyclone furnace were studied. The pyrolysis performance was investigated using thermogravimetric analysis （TGA） at heating rates of 5-20℃/min. The results showed that ramie residues mainly decomposed between 250-390℃ and the maximum mass loss rate increased with the increasing heating rate. The kinetic results indicated that the apparent activation energy ranged from 200 to 258kJ/mol at the conversion of 0. 2-0. 75. In the cyclone furnace, the pyrolysis of ramie residues with the energy self-sufficiency was feasible. The reactor temperature, gas composition and carbon conversion efficiency were affected by ER. When ER varied from 0.21 to 0. 35, the gas yield varied between 1.07 and 2.08Nm^3/kg and the LHV was between 3350 and 4798kJ/Nm^3.

关 键 词：热解 麻骨 活化能 旋风炉 

分 类 号：TK6[动力工程及工程热物理—生物能]