结构化学2024，Vol.43Issue(4) ：15-23.DOI:10.1016/j.cjsc.2024.100248

Pt confined in Sn-ECNU-46 zeolite for efficient alkane dehydrogenation

Naihong Wang Longkang Zhang Yejun Guan Peng Wu Hao Xu
结构化学2024，Vol.43Issue(4) ：15-23.DOI:10.1016/j.cjsc.2024.100248
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Pt confined in Sn-ECNU-46 zeolite for efficient alkane dehydrogenation

Naihong Wang 1Longkang Zhang 1Yejun Guan 1Peng Wu 1Hao Xu1
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作者信息

  • 1. Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering,East China Normal University,Shanghai,200062,China;State Key Laboratory of Petroleum Molecular & Process Engineering SKLPMPE,Sinopec Research Institute of Petroleum Processing Co.,LTD.,Beijing,100083,China;East China Normal University,Shanghai,200062,China
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Abstract

Highly dispersed and stable Pt-based catalysts play a crucial role in constructing efficient catalytic systems for alkane dehydrogenation.In this study,a novel bimetallic Pt-Sn catalyst confined in extra-large-pore ECNU-46 zeolite(denoted as Pt/Sn-ECNU-46)is prepared by post-treatment.The open-site framework Sn species((SiO)3Sn-OH)serve as anchors to interact with Pt species,favoring the high dispersion of Pt.On the other hand,the framework Sn species act as the second metal to regulate the geometrical and electronic environment of Pt species,thus suppressing their accumulation.Pt/Sn-ECNU-46 achieves a good performance in propane dehy-drogenation(PDH)reaction with high initial propane conversion(46％)and propylene selectivity(＞99％)as well as regeneration ability.In addition,Pt/Sn-ECNU-46 is also active in the dehydrogenation of n-hexane.This study explores the application of extra-large-pore zeolite as support in constructing metal-confined catalysts for alkane dehydrogenation.

Key words

Alkane dehydrogenation/Heteroatom-containing zeolite/Zeolite confined catalyst/Pt-based catalyst

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出版年

2024
结构化学
中国化学会 中国科学院福建物质结构研究所

结构化学

CSCD
影响因子：0.44
ISSN：0254-5861
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