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通过非弹性中子散射光谱对ZSM-5中丙烯齐聚反应的低温研究。

Low-temperature studies of propene oligomerization in ZSM-5 by inelastic neutron scattering spectroscopy.

作者信息

Hawkins Alexander P, Zachariou Andrea, Collier Paul, Ewings Russell A, Howe Russell F, Parker Stewart F, Lennon David

机构信息

School of Chemistry, University of Glasgow Joseph Black Building Glasgow G12 8QQ UK

UK Catalysis Hub, Research Complex at Harwell, STFC Rutherford Appleton Laboratory Chilton Oxon OX11 0FA UK.

出版信息

RSC Adv. 2019 Jun 14;9(33):18785-18790. doi: 10.1039/c9ra03568k.

DOI:10.1039/c9ra03568k
PMID:35516867
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9064772/
Abstract

Observation of the oligomerization of propene in ZSM-5 at 293 K by neutron vibrational spectroscopy shows that the product species are linear alkyl chains. No evidence is found for the formation of branched products. The selective formation of linear alkyl chains is attributed to a confinement effect within the zeolite pore structure. A role for zeolite crystallite size, a controllable parameter within the catalyst preparative stage, in being able to influence the product composition in technically relevant olefin oligomerization reactions is considered.

摘要

通过中子振动光谱对293K下ZSM - 5中丙烯齐聚反应的观察表明，产物种类为线性烷基链。未发现形成支链产物的证据。线性烷基链的选择性形成归因于沸石孔结构内的限域效应。人们考虑了沸石微晶尺寸（这是催化剂制备阶段的一个可控参数）在影响技术上相关的烯烃齐聚反应产物组成方面所起的作用。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d468/9064772/e442c614556a/c9ra03568k-f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d468/9064772/e1616b840e5d/c9ra03568k-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d468/9064772/98f4acc52318/c9ra03568k-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d468/9064772/41f51291bd35/c9ra03568k-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d468/9064772/68d340e8b2d4/c9ra03568k-s1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d468/9064772/a639863d05c2/c9ra03568k-s2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d468/9064772/02b403de95a5/c9ra03568k-f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d468/9064772/e442c614556a/c9ra03568k-f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d468/9064772/e1616b840e5d/c9ra03568k-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d468/9064772/98f4acc52318/c9ra03568k-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d468/9064772/41f51291bd35/c9ra03568k-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d468/9064772/68d340e8b2d4/c9ra03568k-s1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d468/9064772/a639863d05c2/c9ra03568k-s2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d468/9064772/02b403de95a5/c9ra03568k-f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d468/9064772/e442c614556a/c9ra03568k-f5.jpg

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本文引用的文献

1
An assessment of hydrocarbon species in the methanol-to-hydrocarbon reaction over a ZSM-5 catalyst.甲醇制烃反应中 ZSM-5 催化剂上烃类物种的评估。
Faraday Discuss. 2017 Apr 28;197:447-471. doi: 10.1039/c6fd00195e.