Propane Dehydrogenation over PtSn/Al2O3 Catalysts: Influence of Urea to Al(NO3)3•9H2O Ratio

被引：10
|
作者：
Wang, Xiaohan [1 ,2 ]
Cui, Jing [1 ]
Zhang, Ning [1 ]
Song, Jiaxin [1 ,2 ]
Fan, Xiaoqiang [1 ]
Zhao, Zhen [1 ,2 ]
Kong, Lian [1 ]
Xiao, Xia [1 ]
Xie, Zean [1 ]
机构：
[1] Shenyang Normal Univ, Inst Catalysis Energy & Environm, Shenyang 110034, Peoples R China
[2] China Univ Petr, State Key Lab Heavy Oil Proc, Beijing 102249, Peoples R China
来源：
CATALYSTS | 2022年 / 12卷 / 02期
基金：
中国国家自然科学基金;
关键词：
propane dehydrogenation; propene; Al2O3 support effect; catalyst; PT-SN/AL2O3; CATALYSTS; LIGHT ALKANES; SN; PERFORMANCE; REGENERATION; SUPPORTS; NANOPARTICLES; SELECTIVITY; ADSORPTION; REDUCTION;
D O I：
10.3390/catal12020157
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Al2O3 supports were synthesized by the hydrothermal method and PtSn/Al2O3 catalysts were prepared by incipient-wetness impregnation method. The influence of the ratio of urea to Al(NO3)(3)center dot 9H(2)O on the structure and catalytic performance for propane dehydrogenation was investigated. The catalysts were characterized by XRD, N-2 adsorption-desorption, SEM, H-2-TPR, NH3-TPD and Raman. The results show that the ratios of urea to Al(NO3)(3)center dot 9H(2)O influence the morphology and phy-chemical properties of Al2O3 support, which influence the dispersion of PtSn active sites and the interaction of Pt and Sn on PtSn/Al2O3 catalysts. The PtSn/Al2O3-9 catalyst possesses the highest interaction of Pt and Sn, which result in high dispersion of active sites. The PtSn/Al2O3-9 catalyst shows high propane conversion and low deactivation rate among these catalysts.
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页数：13
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