Niobium- and Tantalum-Doped Pt-Sn/Al2O3 as Efficient Catalysts for Propane Dehydrogenation

被引:2
作者
Wang, Yi [1 ,2 ]
Luo, Pengyang [1 ]
Xu, Zhikang [1 ]
Xu, Renwei [3 ]
Zhu, Haibo [1 ,2 ]
机构
[1] Fuzhou Univ, Sch Chem Engn, 2 Xueyuan Rd, Fuzhou 350002, Peoples R China
[2] Qingyuan Innovat Lab, Quanzhou 362801, Peoples R China
[3] Sinochem Quanzhou Energy Technol Co Ltd, 398 Donghai St, Quanzhou 362046, Peoples R China
来源
CHEMPLUSCHEM | 2023年 / 88卷 / 02期
基金
中国国家自然科学基金;
关键词
doping; heterogeneous catalysis; niobium; propane dehydrogenation; tantalum; DEFECT-RICH GRAPHENE; PT-SN CLUSTERS; LIGHT ALKANES; AL2O3; NANOPARTICLES; SPECTROSCOPY; BEHAVIOR; LA;
D O I
10.1002/cplu.202200405
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The Pt-Sn/Al2O3 catalyst has been successfully commercialized for propane dehydrogenation, but it is still highly desirable to further improve its catalytic performance for maximizing the utilization efficiency of noble metal Pt. Herein, this work demonstrates that doping Nb and Ta into Pt-Sn/Al2O3 has great impacts on its structure, and significantly improved catalytic performances are achieved in Pt-Sn-X/Al2O3(X=Nb and Ta). It is found that the incorporation of Nb and Ta into Pt-Sn/Al2O3 can promote the dispersion of Pt-Sn particles, which results in Pt-Sn clusters being highly dispersed at the surface of Al2O3. Moreover, the presence of Nb and Ta makes the SnOx species less reducible, and thus the Pt-Sn particles become more stable at high temperature. Systematic exploration allows to obtain the optimized Pt-Sn-Nb-5.0/Al2O3 and Pt-Sn-Ta-1.0/Al2O3, and these two catalysts exhibit high initial propane conversion (above 43.8 % and 50.4 %) with propylene selectivity of above 98 %. Most importantly, they show excellent regeneration in propane dehydrogenation, and their catalytic performance can be completely restored by a simple calcination.
引用
收藏
页数:8
相关论文
共 41 条
[1]  
Ali AM, 2021, J CHEM SOC PAKISTAN, V43, P342
[2]  
[Anonymous], 2015, ANGEW CHEM, V127, P14200
[3]   Location and structure of coke generated over Pt-Sn/Al2O3 in propane dehydrogenation [J].
Bao Khanh Vu ;
Song, Myoung Bok ;
Ahn, In Young ;
Suh, Young-Woong ;
Suh, Dong Jin ;
Kim, Jae Sung ;
Shin, Eun Woo .
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY, 2011, 17 (01) :71-76
[4]   Effect of phase interaction on catalytic CO oxidation over the SnO2/Al2O3 model catalyst [J].
Chai, Shujing ;
Bai, Xueqin ;
Li, Jing ;
Liu, Cheng ;
Ding, Tong ;
Tian, Ye ;
Liu, Chang ;
Xian, Hui ;
Mi, Wenbo ;
Li, Xingang .
APPLIED SURFACE SCIENCE, 2017, 402 :12-20
[5]   Propane dehydrogenation: catalyst development, new chemistry, and emerging technologies [J].
Chen, Sai ;
Chang, Xin ;
Sun, Guodong ;
Zhang, Tingting ;
Xu, Yiyi ;
Wang, Yang ;
Pei, Chunlei ;
Gong, Jinlong .
CHEMICAL SOCIETY REVIEWS, 2021, 50 (05) :3315-3354
[6]   Regulating coordination number in atomically dispersed Pt species on defect-rich graphene for n-butane dehydrogenation reaction [J].
Chen, Xiaowen ;
Peng, Mi ;
Cai, Xiangbin ;
Chen, Yunlei ;
Jia, Zhimin ;
Deng, Yuchen ;
Mei, Bingbao ;
Jiang, Zheng ;
Xiao, Dequan ;
Wen, Xiaodong ;
Wang, Ning ;
Liu, Hongyang ;
Ma, Ding .
NATURE COMMUNICATIONS, 2021, 12 (01)
[7]   MICROCALORIMETRIC, SPECTROSCOPIC, AND KINETIC-STUDIES OF SILICA-SUPPORTED PT AND PT/SN CATALYSTS FOR ISOBUTANE DEHYDROGENATION [J].
CORTRIGHT, RD ;
DUMESIC, JA .
JOURNAL OF CATALYSIS, 1994, 148 (02) :771-778
[8]   Subnanometric Pt-Sn Monolayers Over a Rod-Shaped Al2O3 for Propane Dehydrogenation [J].
Deng, Li ;
Han, Shaobo ;
Li, Yong ;
Shen, Wenjie .
CHEMCATCHEM, 2022, 14 (15)
[9]   Non-oxidative dehydrogenation of propane to propene over Pt-Sn/Al2O3 catalysts: Identification of the nature of active site [J].
Gao, Xiaofeng ;
Xu, Wenhao ;
Li, Xing ;
Cen, Jiajie ;
Xu, Yangzhi ;
Lin, Lili ;
Yao, Siyu .
CHEMICAL ENGINEERING JOURNAL, 2022, 443
[10]   Coking-Resistant Sub-Nano Dehydrogenation Catalysts: PtnSnx/SiO2 (n=4, 7) [J].
Gorey, Timothy J. ;
Zandkarimi, Borna ;
Li, Guangjing ;
Baxter, Eric T. ;
Alexandrova, Anastassia N. ;
Anderson, Scott L. .
ACS CATALYSIS, 2020, 10 (08) :4543-4558