文献类型：期刊文献

中文题名：Kinetic studies on the dimerization of isobutene with Ni/Al2O3 as a catalyst for reactive distillation process☆

英文题名：Kinetic studies on the dimerization of isobutene with Ni/Al2O3 as a catalyst for reactive distillation process

作者：Liwei Tong[1];Lifang Chen[1];Yinmei Ye[2];Zhiwen Qi[1]

机构：[1]Max Planck Partner Group at the State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China;[2]School of Resources and Environmental Engineering, East China University of Science and Technology, Shanghai 200237, China

年份：2015

期号：3

起止页码：520

中文期刊名：中国化学工程学报（英文版）

外文期刊名：Chinese Journal of Chemical Engineering

收录：CSTPCD;;Scopus;CSCD:【CSCD2015_2016】；

基金：the State key Development Program for Basic Research of China，the National High Technology Research and Development，the National Natural Science Foundation of China，the Shanghai Pujiang Talents Program

语种：英文

中文关键词：反应精馏过程;催化剂装填;动力学模型;Ni/Al2O3;丁烯二聚;Ni/Al2O3催化剂;离子交换树脂;温度范围

外文关键词：Isobutene;Oligomerization;Catalyst;Kinetic modeling;Reactive distil ation

摘要：Isooctane is a promising gasoline additive that could be produced by dimerization of isobutene(IB) with subsequent hydrogenation.In this work,the dimerization of IB has been carried out in a batch reactor over a temperature range of 338-383 K in the presence of laboratory prepared Ni/Al_2O_3 as a catalyst and n-pentane as solvent.The influence of various parameters such as temperature,catalyst loading and initial concentration of IB was examined.A Langmuir-Hinshelwood kinetic model of IB dimerization was established and the parameters were estimated on the basis of the measured data.The feasibility of oligomerization of IB based on the reactive distillation was simulated in ASPEN PLUS using the kinetics developed.The simulation results showed that the catalyst of Ni/Al_2O_3 had higher selectivity to diisobutene(DIB) and slightly lower conversion of IB than ion exchange resin in the absence of polar substances.
Isooctane is a promising gasoline additive that could be produced by dimerization of isobutene (IB) with subse-quent hydrogenation. In this work, the dimerization of IB has been carried out in a batch reactor over a temper-ature range of 338–383 K in the presence of laboratory prepared Ni/Al2O3 as a catalyst and n-pentane as solvent. The influence of various parameters such as temperature, catalyst loading and initial concentration of IB was examined. A Langmuir–Hinshelwood kinetic model of IB dimerization was established and the parameters were estimated on the basis of the measured data. The feasibility of oligomerization of IB based on the reactive distil ation was simulated in ASPEN PLUS using the kinetics developed. The simulation results showed that the catalyst of Ni/Al2O3 had higher selectivity to diisobutene (DIB) and slightly lower conversion of IB than ion exchange resin in the absence of polar substances.