中文摘要：

深入研究生物质热解有助于热解机理的理解，利用热重分析来探讨石灰预处理和干发酵对稻草热解特性的影响。结果表明：预处理使木质素和半纤维素含量增加，而干发酵使VS、半纤维素和纤维素含量降低；预处理和干发酵改变稻草热解特性，但未改变稻草的热反应机理；热解一级动力学方程很好模拟稻草热解的主失重阶段，稻草热解活化能数值为42．3～47．8kJ／mol，属于正常范围；预处理降低反应活化能，而干发酵增加反应活化能。这为秸秆及其干发酵残渣的气化提供了重要的设计依据。

英文摘要：

It was help to understand pyrolysis mechanism that biomass pyrolysis would be deeply studied. The change in pyrolysis characteristics of rice straw from lime pretreatment and dry digestion was discussed by using thermogravimetric analyzer. The results showed that lime pretreatment increased the relative content of lignin and hemicellulose. whereas dry digestion reduced the relative content of VS, cellulose and hemicellulose. The lime pretreatment and dry digestion changed pyrolysis characteristics of rice straw, but pyrolysis mechanism would not change at treated phase. The part of main weight loss was well modeled by the first-order kinetic equation, and the kinetic parameters of pyrolysis of rice straw was belonged to the usual range reported by literatures. The increase in activate energy appeared at pretreat- ment phase, whereas the decrease in activate energy occurred at digestion phase. This study provided useful parameters for the design of pyrolysis reactor for straw and its fermented residues combustion.