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 Pow er Engineering June 2007 : 1000-6761( 2007) 03- 441- 05 P 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 DAEM 热解 气化 : X705 : A Application of Distributed Activation Models in Research on Dynamics of Pyrolysis and Gasification of Garbage 1, 2 1 1 ZH U Ying , JIN Bao-sheng , WANG Ze-ming ( 1. MOE. s Key Lab. of Clean Coal Fired Pow er Generation and Combustion T echnique, 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 w aste in China, w ere studied w ith a thermogravimetric analyzer . The TG-DTG curves w ere moveover dynamically analyzed w ith the help of a distributed act ivat ion energy model. Study results indicate that the w eight loss of MMSW proceeds in the follow ing four process- stages: pyrolytic decomposition of starch, contained in food refuses, decomposit ion of fats in food refuse, pyrolysis