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

Jing Liu, Ning Ding, Yuena Ge, Xiaolong Zhou, Jin An Wang, Chenglie Li

Research output: Contribution to journalArticleResearchpeer-review

Abstract

© 2019, Springer Science+Business Media, LLC, part of Springer Nature. 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. Graphical Abstract: [Figure not available: see fulltext.].
Original languageAmerican English
Pages (from-to)1277-1285
Number of pages1148
JournalCatalysis Letters
DOIs
StatePublished - 1 May 2019
Externally publishedYes

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Ion Exchange Resins
Ion exchange resins
Dimerization
Ethanol
Acids
Oligomerization
Isomerization
Dimers
Fluid catalytic cracking
Temperature
Butenes
Oligomers
Gases
isobutylene
Industry

Cite this

Liu, Jing ; Ding, Ning ; Ge, Yuena ; Zhou, Xiaolong ; Wang, Jin An ; Li, Chenglie. / Dimerization of Isobutene in C4 Mixtures in the Presence of Ethanol Over Acid Ion-Exchange Resin DH-2. In: Catalysis Letters. 2019 ; pp. 1277-1285.
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abstract = "{\circledC} 2019, Springer Science+Business Media, LLC, part of Springer Nature. 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. Graphical Abstract: [Figure not available: see fulltext.].",
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Dimerization of Isobutene in C4 Mixtures in the Presence of Ethanol Over Acid Ion-Exchange Resin DH-2. / Liu, Jing; Ding, Ning; Ge, Yuena; Zhou, Xiaolong; Wang, Jin An; Li, Chenglie.

In: Catalysis Letters, 01.05.2019, p. 1277-1285.

Research output: Contribution to journalArticleResearchpeer-review

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