详细信息
基于自由基反应机理的芳烃液相氧化动力学模型 ( EI收录)
Modeling of liquid phase oxidation kinetics of aromatic hydrocarbon based on free radical chain reaction mechanism
文献类型:期刊文献
中文题名:基于自由基反应机理的芳烃液相氧化动力学模型
英文题名:Modeling of liquid phase oxidation kinetics of aromatic hydrocarbon based on free radical chain reaction mechanism
作者:孙伟振[1];黄欢[1];顾晓吴[1];赵玲[1]
机构:[1]华东理工大学化学工程联合国家重点实验室,上海200237
年份:2010
卷号:61
期号:7
起止页码:1796
中文期刊名:化工学报
外文期刊名:CIESC Journal
收录:CSTPCD;;EI(收录号:20103013098746);Scopus;北大核心:【北大核心2008】;CSCD:【CSCD2011_2012】;
基金:国家高技术研究发展计划项目(2007AA04Z159)~~
语种:中文
中文关键词:液相氧化;动力学模型;芳烃;反应机理
外文关键词:liquid phase oxidation; kinetic model; aromatic hydrocarbon; reaction mechanism
摘要:基于自由基链式反应机理,概括性地提出了芳烃液相氧化的基元反应步骤。针对芳烃氧化的特点对动力学模型进行了简化处理,减少了模型参数。运用提出的建模方法,建立了3个氧化实例的动力学模型,包括对二甲苯(PX)氧化生产对苯二甲酸(TPA)、对甲基苯甲酸(p-TA)氧化生产TPA、乙苯(EB)氧化生产乙苯氢过氧化物(EBHP)。拟合回归结果表明,上述动力学模型对实验数据的拟合效果均较好,最大拟合偏差不大于10%;并且涉及链传递和链终止反应步骤的共用参数不随反应条件而改变。
Based on free radical chain reaction mechanism,elementary reaction steps for aromatic hydrocarbon liquid phase oxidation are generalized.According to the characteristics of aromatic hydrocarbon oxidation,some simplifications are made for the model,so that the number of model parameters is reduced considerably.This modeling method is applied to three cases,including oxidations of p-xylene(PX)to terephthalic acid(TPA),p-toluic acid(p-TA)to TPA,and ethylbenzene(EB)to ethylbenzene hydroperoxide(EBHP).The results show that the kinetic models are in good agreement with experimental data,in which the maximum deviation between calculated and experimental data is no more than 10%.In each case,those common parameters regarding the chain propagation and termination steps are constant under different reaction conditions.The modeling method may be used for other hydrocarbons.
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