能源作物与传统生物质热重实验的对比研究

利用热天平研究了4种不同类型的传统生物质与2种能源作物在氮气气氛下的热解失重特性,并分别对其反应动力学参数进行了计算。结果表明:几种生物质的热解失重特性按划分的4类表现出4种不同的规律,而同类生物质中能源作物与传统生物质的失重规律相同,但热解程度要明显大于传统生物质。以木质素为主的木屑活化能最低,最易发生反应,同类生物质中2种能源作物比传统生物质白桦活化能低,较容易发生反应。

The Study of TG Experiment for Energy Crops and Traditional Biomass

The weight-loss characters of energy crops and traditional hiomass were studied by means of thermogravi- metric analysis in nitrogen ambience.And the paper also studied the kinetic of these biomass according to the re- sults of the thermo gravimetric experiments.The results show that the characters of pyrolysis and weight-loss for these biomass showed four different rules according to the classification.However,in the same classification of bio- mass,energy crops and traditional biomass have the same weight-loss characteristics,but the pyrolysis degree of the energy crops is deeper than traditional biomass obviously.And the activations energy of the wood particles which are mainly composed of lignin is the lowest,and is the easiest to have reaction.The two kinds of energy crops are comparatively easier to pyrolyze than the traditional biomass-b.