文献类型：期刊文献

中文题名：C8芳烃在SKI-400-40催化剂上的临氢异构化反应动力学

英文题名：Kinetic Model for Hydroisomerization Reaction of C_8-Aromatics over SKI-400-40 Catalyst

作者：田野[1];许志美[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：26

期号：1

起止页码：58

中文期刊名：化学反应工程与工艺

外文期刊名：Chemical Reaction Engineering and Technology

收录：CSTPCD;;Scopus;北大核心:【北大核心2008】；CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：碳八芳烃;临氢异构化;动力学模型

外文关键词：C8-aromatics; hydroisomerization; kinetic model

摘要：利用固定床积分反应实验装置,在反应温度为365～410℃、空速为4～128 h^(-1)、氢烃物质的量比为3.8、反应压力为1.1 MPa条件下,对C_8芳烃在SKI-400-40催化剂上的临氢异构化宏观反应动力学进行了研究。采用六组分拟一级异构化反应网络,建立了C_8芳烃临氢异构化的宏观反应动力学模型,模型计算值与实验值吻合良好。得到的反应速率常数表明,二甲苯和乙苯间的转化可通过两种方式,一是两者之间的直接转化,二是两者通过C_8N+P的桥接转化,其中第二种方式的贡献更大。
The macro-kinetics of hydroisomerization reaction of Cs-aromatics over SKI-400-40 catalyst was studied in a laboratory-made fixed-bed reactor under conditions of temperature ranging from 365 ℃ to 410 ℃, mass hourly space velocity ranging from 4 h^-1 to 128 h^-1 , H2/hydrocarbon mole ratio of 3.6 and total pressure of 1.1 MPa. Based on six component＇s pseudo-first-order hydroisomerization reaction network, the kinetic model was developed and model parameters were estimated. The model predictions were fitted experimental observations well. The obtained rate constants implied that mutual transformation of ethylbenzene and xylenes could occur by direct transformation and indirect transformation with C8N ＋ P as intermediate, and the latter one was dominant.