文献类型：期刊文献

英文题名：Dimerization of Isobutene in C4 Mixtures in the Presence of Ethanol Over Acid Ion-Exchange Resin DH-2

作者：Liu, Jing[1];Ding, Ning[1];Ge, Yuena[1];Zhou, Xiaolong[1];Wang, Jin An[2];Li, Chenglie[1]

机构：[1]East China Univ Sci & Technol, Inst Chem Engn, Int Joint Res Ctr Clean Energy & Chem Engn, Shanghai 200237, Peoples R China;[2]Inst Politecn Nacl, ESIQIE, Av Inst Politecn Nacl S-N, Mexico City 07738, DF, Mexico

年份：2019

卷号：149

期号：5

起止页码：1277

外文期刊名：CATALYSIS LETTERS

收录：;EI(收录号：20190906565694);WOS:【SCI-EXPANDED(收录号:WOS:000462342800014)】；

基金：We gratefully acknowledge the Fundamental Research Funds for the Central Universities (WA1817027).

语种：英文

外文关键词：Acid ion-exchange resin; Dimerization; Ethanol; Isobutene; Gasoline booster

摘要：Isobutene dimerization of C4 mixtures with the simulated components of industrial fluid catalytic cracking (FCC) gas stream was carried out in a fixed-bed microreactor over the acid ion-exchange resin (DH-2) in the presence of ethanol. The influences of ethanol/isobutene molar ratio and reaction temperature on the isobutene dimerization reaction were studied. For 1-butene, both isomerization and oligomerization simultaneously take place, but the isomerization reaction is more sensitive to reaction temperature than oligomerization. And both reactions were inhibited noticeably in the presence of ethanol. Although the conversion of isobutene was reduced to some extent when ethanol was introduced, it was beneficial for improving the weight fraction of dimers in oligomers as well as trimethylpentenes in dimers. With ethanol addition, the dimerization reaction was less sensitive to the reaction temperature thus the isobutene dimerization reaction can be performed in a wide temperature range. [GRAPHICS] .