Enhanced catalytic performance of PtSn catalysts for propane dehydrogenation by a Zn-modified Mg(Al)O support

doi:10.1016/j.fuproc.2019.106222

	Enhanced catalytic performance of PtSn catalysts for propane dehydrogenation by a Zn-modified Mg(Al)O support
	Wu, Xiaoping; Zhang, Qiao; Chen, Lungang; Liu, Qiying; Zhang, Xinghua; Zhang, Qi; Ma, Longlong; Wang, Chenguang
刊名	FUEL PROCESSING TECHNOLOGY
	2020-02-01
卷号	198 页码:9
关键词	PtSn Zn-modified Mg(Al)O Propane dehydrogenation Propene HRTEM
ISSN号	0378-3820
DOI	10.1016/j.fuproc.2019.106222
通讯作者	Wang, Chenguang(wangcg@ms.giec.ac.cn)
英文摘要	The development of thermally stable Pt-based catalysts with superior performance for propane dehydrogenation reactions remains a daunting challenge. In this study, a series of PtSn-Mg(Zn)AlO catalysts with different Zn and Pt contents were synthesized by the anion-exchange method for the propane dehydrogenation reaction. To investigate the influence of Zn on the reaction performance and the catalyst structure, the prepared catalysts were characterized with several analytical techniques, including XRD, TEM, HRTEM, H-2-TPD and CO pulse chemisorption. A good propane conversion (initially higher than 55% and averaging 45.2% over a period of 2 h) and propene selectivity (higher than 99%) were obtained experimentally with PtSn-Mg(3Zn)AlO at 550 degrees C. The results demonstrated that Pt provided the active sites and that Zn was a promoter. The HRTEM and CO pulse chemisorption results indicated that the addition of Zn to the PtSn-MgAlO catalyst can stabilize the dispersion of metal particles and thus inhibit the sintering of Pt particles. Furthermore, the activities of the used catalysts were almost recovered through reaction-regeneration cycles with the burning-off of coke during five cycles.
资助项目	CAS Pioneer Hundred Talents Programme ; Natural Science Foundation of China[51776206]
WOS关键词	CALCINATION TEMPERATURE ; PTIN/MG(AL)O CATALYSTS ; GAMMA-ALUMINA ; PLATINUM ; CLUSTERS ; HYDROGEN ; ETHANE ; STABILITY ; OXIDATION
WOS研究方向	Chemistry ; Energy & Fuels ; Engineering
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000501613900007
资助机构	CAS Pioneer Hundred Talents Programme ; Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/26105]
专题	中国科学院广州能源研究所
通讯作者	Wang, Chenguang
作者单位	Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Wu, Xiaoping,Zhang, Qiao,Chen, Lungang,et al. Enhanced catalytic performance of PtSn catalysts for propane dehydrogenation by a Zn-modified Mg(Al)O support[J]. FUEL PROCESSING TECHNOLOGY,2020,198:9.
APA	Wu, Xiaoping.,Zhang, Qiao.,Chen, Lungang.,Liu, Qiying.,Zhang, Xinghua.,...&Wang, Chenguang.(2020).Enhanced catalytic performance of PtSn catalysts for propane dehydrogenation by a Zn-modified Mg(Al)O support.FUEL PROCESSING TECHNOLOGY,198,9.
MLA	Wu, Xiaoping,et al."Enhanced catalytic performance of PtSn catalysts for propane dehydrogenation by a Zn-modified Mg(Al)O support".FUEL PROCESSING TECHNOLOGY 198(2020):9.