文献类型：期刊文献

中文题名：甲苯液相氧化动力学研究

英文题名：Kinetics of liquid-phase oxidation of toluene

作者：邹隐文[1];顾雄毅[1];程宗泽[2];于广欣[2];王志侃[2]

机构：[1]华东理工大学联合化学反应工程研究所,上海200237;[2]石家庄化纤有限责任公司,河北石家庄050032

年份：2007

卷号：35

期号：9

起止页码：33

中文期刊名：化学工程

外文期刊名：Chemical Engineering(China)

收录：CSTPCD;;EI(收录号：20074310888898);Scopus;北大核心:【北大核心2004】；CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：甲苯;苯甲酸;动力学;液相氧化;醋酸钴

外文关键词：toluene ; benzoic acid ; kinetics ; liquid-phase oxidation; cobalt acetate

摘要：建立了一套甲苯液相空气氧化的连续反应装置,在工业条件下进行了动力学实验研究。在排除氧气、催化剂质量分数等影响因素下,建立了反应动力学模型,并回归得到模型参数。用该模型计算得到的甲苯转化率和实验结果对比,最大误差4.72%,平均误差2.36%。研究结果表明,甲苯转化率受温度和停留时间的影响较大,尤以温度影响更为明显;主产物选择性受温度和停留时间的影响较小,但停留时间延长,会加剧苯甲醛向苯甲酸转化。
A continuous experiment apparatus was set up for kinetic research ol liquid-phase oxidation of toluene Dy air under industrial condition. By eliminating the effects such as oxygen and catalyst mass fraction, a kinetic model was developed, and the parameters were estimated. Based on the equation, the maximum and mean deviations of conversion between the experimental data and calculated values were 4.72% and 2.36% , respectively. The results show that the conversion of toluene is effected by the temperature and residence time, especially by the former. The selectivity of main products is less influenced by the temperature and residence time, but when the time is prolonged, it will aggressively increase the conversion of benzyldehyde to benzoic acid.