Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
| Alkali-metal enhanced LaMnO3 perovskite oxides for chemical looping oxidative dehydrogenation of ethane | |
Ding, Weixiao1,2,3,4; Zhao, Kun2,3,4 ; Jiang, Shican1,2,3,4; Zhao, Zengli2,3,4; Cao, Yan2,3,4; He, Fang1
| |
| 2021-01-05 | |
| Source Publication | APPLIED CATALYSIS A-GENERAL
 |
| ISSN | 0926-860X |
| Volume | 609Pages:8 |
| Corresponding Author | Zhao, Kun(zhaokun@ms.giec.ac.cn) ; He, Fang(hefang@glut.edu.cn) |
| Abstract | Chemical looping oxidative dehydrogenation (CL-ODH) of ethane provides a potential method to convert ethane into ethylene by using a circulative redox catalyst (also called oxygen carrier). In this work, perovskites type oxide LaMnO3 and three kinds of alkali-metal (Na, Na3PO4 and Na2WO4) promoted LaMnO3 redox catalysts were prepared and tested for CL-ODH of ethane. Results showed that the alkali promoters not only reduce the Mn oxidation state, but also decrease the surface manganese sites. The alkali-doping induces the formation of electron-rich intermediate oxygen species, which contributes to the higher ethylene selectivity of the alkalimodified LaMnO3. As the best candidate for CL-ODH of ethane among the four catalysts, NaW-LaMnO3 exhibited a stable activity during 25 redox cycles. 85 % of ethylene selectivity and 60 % of ethylene yield was obtained, which is significantly improved in comparison to 41.16 % ethylene yield of unpromoted LaMnO3, simultaneously exhibiting less than 1 % of coke formation. |
| Keyword | Chemical looping ODH Ethane Alkali promoter Intermediate oxygen |
| DOI | 10.1016/j.apcata.2020.117910 |
| WOS Keyword | ETHYLENE PRODUCTION ; REDOX CATALYSTS ; PROCESS SIMULATIONS ; METHANE ; CRACKING ; EXPLORATION ; MECHANISMS ; SCHEME |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[51876205] ; National Key Research and Development Program of China[2017YFE0105500] ; Science & Technology Research Project of Guangdong Province[2017A020216009] ; Guangxi Natural Science Foundation[2018GXNSFDA281005] |
| WOS Research Area | Chemistry ; Environmental Sciences & Ecology |
| Funding Organization | National Natural Science Foundation of China ; National Key Research and Development Program of China ; Science & Technology Research Project of Guangdong Province ; Guangxi Natural Science Foundation |
| WOS Subject | Chemistry, Physical ; Environmental Sciences |
| WOS ID | WOS:000599504600006 |
| Publisher | ELSEVIER |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.giec.ac.cn/handle/344007/32332 |
| Collection | 中国科学院广州能源研究所 |
| Corresponding Author | Zhao, Kun; He, Fang |
| Affiliation | 1.Guilin Univ Technol, Coll Chem & Bioengn, Guilin 541004, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 3.CAS Key Lab Renewable Energy, Guangzhou 510640, Peoples R China 4.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China |
| First Author Affilication | GuangZhou Institute of Energy Conversion,Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | Ding, Weixiao,Zhao, Kun,Jiang, Shican,et al. Alkali-metal enhanced LaMnO3 perovskite oxides for chemical looping oxidative dehydrogenation of ethane[J]. APPLIED CATALYSIS A-GENERAL,2021,609:8. |
| APA | Ding, Weixiao,Zhao, Kun,Jiang, Shican,Zhao, Zengli,Cao, Yan,&He, Fang.(2021).Alkali-metal enhanced LaMnO3 perovskite oxides for chemical looping oxidative dehydrogenation of ethane.APPLIED CATALYSIS A-GENERAL,609,8. |
| MLA | Ding, Weixiao,et al."Alkali-metal enhanced LaMnO3 perovskite oxides for chemical looping oxidative dehydrogenation of ethane".APPLIED CATALYSIS A-GENERAL 609(2021):8. |
| Files in This Item: | There are no files associated with this item. | |||||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment