生物质秸秆热解反应及动力学分析  

Analysis of Pyrolysis and Its Kinetics on Biomass Stalk

作　　者：卢洪波[1] 苏桂秋[1] 贾春霞[1] 张冬雷[2] 韩汝刚 

机构地区：[1]东北电力大学能源与机械工程学院,吉林吉林132012 [2]洮南市热电厂,吉林洮南137100

出　　处：《东北电力大学学报》2007年第1期38-41,共4页Journal of Northeast Electric Power University

摘　　要：为了对生物质热解设备进行分析和计算,用热重分析仪分别对稻草和玉米秸秆在不同升温速率下进行了热分析研究。结果表明:稻草和玉米秸秆的热解特性基本一致,热解过程可以用同一种模型描述;随升温速率的提高,热解最高速率及其对应温度明显提高。氮气气氛下第一阶段的热解较滞后,空气气氛下DTG失重峰均有提前。并利用Coats-Redfern法计算得到了稻草和玉米秸秆在不同升温速率下的反应动力学参数,为进一步研究生物质的实际热解过程提供了基本的理论依据。In order to design and analyze pyrolysis equipment of biomass, pyrolysis experiments of corn stakl and rice straw are conducted by using thermogrametric analyzer. Results of two biomass materials are compared and found to be similar. Derivative thermogravimetry（DTG） curves of samples show that the higher the heating rate,the higher the temperature of DTG peak. DTG peaks shift to air atmosphere but not nitrogen atmosphere under which there is temperature lag. And chemical reaction kinetic parameters of biomass＇s pyrolysis can be achieved by Coats-Redfern method, which provides theoretical foundation for further study on pyrolysis of biomass.

关 键 词：生物质秸秆 热分析 动力学参数 

分 类 号：TQ517[化学工程]