分布活化能模型在垃圾热解_气化动力学研究中的应用_朱颖.pdf

　27 3 动 　 力 　 工 　 程 Vol.27 No.3　 　2007 6 Journal of Power Engineering June 2007　 　　:1000-6761(2007)03-441-05 1, 2 1 1 朱　颖 , 　金保升 , 　王泽明 (1. , , 210096; 2., 210007) 　:采用热重分析仪, 对我国城市生活垃圾典型有 混合物(MMSW)的热解和气化特性进行 了研究, 并用分布活化能模型对TG-DTG 曲线进行了动力学分析。试验表明:MMSW 失重过程分为 厨余中淀粉热解、厨余中脂肪分解、纸类纤维素热解和聚乙烯分解4 个过程, 并存在3 种有 组分 的相互作用;在相同失重率下, 气化反应活化能值高于热解反应活化能值;整个反应过程中, 热解反 应活化能分布较窄, 而气化反应活化能分布在相对较宽的范围内。 :环境工程学;城市生活垃圾;动力学参数;热分析;D EM;热解;气化 :X705　　　: Applicat ion of Distributed Act ivat ion Models in Research on Dynamics of Pyrolysis and Gasif icat ion of Garbage 1, 2 1 1 ZHU Ying , 　JIN Bao-sheng , 　WANG Ze-ming (1.MOEs Key Lab.of Clean Coal Fired Power Generation and Combustion Technique, Department of Power Engineering, Southeast University, Nanjing 210096, China; 2.Jiangsu Institute of Economic and Trande Technology, Nanjing 210007, China) Abstract :Characteristics of pyrolysis and gesification of typical mixtures of organic matter (MMSW), modelizing municipal solid waste in China, were studied with a thermogravimetric analyzer.The TG-DTG curves were moveover dynamically analyzedwith the help of a distributed activation energy model.Study results indicate that theweight loss of MMSW proceeds in the following four process-stages:pyrolytic decomposition of starch, contained in food refuses, decomposition of fats in food refuse, pyrolysis of cellulose in waste paper and decomposition of polyethylene;moreover three organic components interacting with one-another.The active energy of gesification E exceeds that of pyrolysis.In the course of