Enhanced catalytic performance of PtSn catalysts for propane dehydrogenation by a Zn-modified Mg(Al)O support
文献类型：期刊论文
| 作者 | Wu, Xiaoping; Zhang, Qiao; Chen, Lungang; Liu, Qiying ; Zhang, Xinghua; Zhang, Qi; Ma, Longlong; Wang, Chenguang
|
| 刊名 | FUEL PROCESSING TECHNOLOGY
 |
| 出版日期 | 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. |
| WOS关键词 | CALCINATION TEMPERATURE ; PTIN/MG(AL)O CATALYSTS ; GAMMA-ALUMINA ; PLATINUM ; CLUSTERS ; HYDROGEN ; ETHANE ; STABILITY ; OXIDATION |
| 资助项目 | CAS Pioneer Hundred Talents Programme ; Natural Science Foundation of China[51776206] |
| WOS研究方向 | Chemistry ; Energy & Fuels ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000501613900007 |
| 出版者 | ELSEVIER |
| 资助机构 | CAS Pioneer Hundred Talents Programme ; Natural Science Foundation of China |
| 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. |
入库方式： OAI收割
来源：广州能源研究所
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