4.5 Article

Bimetallic PtSn nanoparticles confined in hierarchical ZSM-5 for propane dehydrogenation

期刊

CHINESE JOURNAL OF CHEMICAL ENGINEERING
卷 41, 期 -, 页码 384-391

出版社

CHEMICAL INDUSTRY PRESS CO LTD
DOI: 10.1016/j.cjche.2021.11.020

关键词

Hierarchical ZSM-5; Propane dehydrogenation; Desilication; PtSn particles

资金

  1. National Natural Science Foundation of China [21878050, 22178062]
  2. Foundation of State Key Laboratory of Coal Conversion [J21-22-620]
  3. Green Petrochemical Engineering Base of Intelligence Introduction for Innovation (111 Project) [D17005]

向作者/读者索取更多资源

A series of PtSn/hierarchical ZSM-5 catalysts were developed for propane dehydrogenation. These catalysts confine PtSn bimetallic particles in the mesopores of hierarchical ZSM-5 zeolite, which are obtained through desilication of conventional ZSM-5. The high efficiency of these catalysts is attributed to the confinement of PtSn particles in the mesopores of hierarchical ZSM-5.
A series of PtSn/hierarchical ZSM-5 catalysts were developed for propane dehydrogenation, in which the PtSn bimetallic particles are confined in the mesopores of hierarchical ZSM-5 zeolite. The synthesis of PtSn/hierarchical ZSM-5 catalysts was achieved via the loading of Pt and Sn species onto the hierarchical ZSM-5 catalysts that are obtained through a desilication of conventional ZSM-5. The PtSn/hierarchical ZSM-5 catalysts were fully characterized by XRD, N-2 adsorption, STEM, XPS, and CO-IR techniques, which reveals that highly dispersed PtSn bimetallic nanoparticles are enclosed into mesopores of hierarchical ZSM-5. The catalytic performance of PtSn/hierarchical ZSM-5 is greatly affected by the concentrations of alkali solution in the desilication process and Sn/Pt ratios in PtSn bimetallic particles. The PtSn1.00/ZSM-5(0.8) catalyst shows the highest efficiency in propane dehydrogenation, which gives an initial conversion of 46% and selectivity of 98% at 570 degrees C. The high efficiency in these PtSn/hierarchical ZSM-5 catalysts for propane dehydrogenation is mainly ascribed to the confinement of PtSn particles in the mesopores of hierarchical ZSM-5 zeolite. (C) 2021 The Chemical Industry and Engineering Society of China, and Chemical Industry Press Co., Ltd. All rights reserved.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.5
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据