Water-saving dry methanation for direct conversion of syngas to synthetic natural gas over robust Ni0.1Mg0.9Al2O4 catalyst
文献类型：期刊论文
| 作者 | Wang, Fen2,3; Zhang, Jing-Cai2; Chen, Zhi-Qiang2; Lin, Jing-Dong3; Li, Wei-Zhen2; Wang, Yong1; Chen, Bing-Hui3 |
| 刊名 | JOURNAL OF CATALYSIS
 |
| 出版日期 | 2019-07-01 |
| 卷号 | 375页码:466-477 |
| ISSN号 | 0021-9517 |
| 关键词 | Syngas Nickel catalyst Methanation Synthetic natural gas Regeneration stability |
| DOI | 10.1016/j.jcat.2019.06.021 |
| 通讯作者 | Li, Wei-Zhen(weizhenli@dicp.ac.cn) ; Chen, Bing-Hui(chenbh@xmu.edu.cn) |
| 英文摘要 | Production of synthetic natural gas (SNG) from coal is typically water intensive due to the need of increasing H-2/CO ratio from 1 to 3 via water gas shift reaction. Here we report a water-saving dry methanation reaction that allows direct conversion of low H-2 content syngas (H-2/CO = 1) to methane without consumption of water for adjusting H-2/CO to >= 3 and without production of waste water. Conventional Ni/Al2O3 catalyst is active for the dry methanation reaction but deactivates very rapidly due to carbon deposition and metal sintering. A Ni0.1Mg0.9Al2O4 catalyst exhibits much higher activity and better stability during steady state catalytic reaction and cyclic reaction-regeneration operations. Using a suite of characterization tools including BET, XRD, STEM, TEM, H-2-TPR, Raman, TG-DSC, CO2 and NH3 TPD, and temperature-programmed hydrogenation, we reveal that carbon deposition did not occur on the surface of Ni particles in Ni0.1Mg0.9Al2O4 catalyst. Moreover, the population of small Ni nanoparticles (ca. 2 nm) increased after multiple reaction-regeneration operations possibly due to Ni redispersing via reversible diffusing among the framework of spinel. The exposure of active Ni surface and the formation of small-sized Ni nanoparticles together contributed to the stable and improved activity for dry methanation during the reaction-regeneration operations. (C) 2019 Elsevier Inc. All rights reserved. |
| WOS关键词 | CALCINATION TEMPERATURE ; CARBON DEPOSITION ; PARTIAL OXIDATION ; NICKEL ; CO2 ; MECHANISMS ; STABILITY ; MOO3/CEO2 ; SNG |
| 资助项目 | National Key R&D Program of China[2016YFA0202801] ; National Natural Science Foundation of China[21673226] ; National Natural Science Foundation of China[21673187] ; National Natural Science Foundation of China[21403213] ; Transformational Technologies for Clean Energy and Demonstration, Strategic Priority Research Program of the Chinese Academy of Sciences[XDA21040200] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB17000000] ; Hundred Talents Programme of the Chinese Academy of Sciences |
| WOS研究方向 | Chemistry ; Engineering |
| 语种 | 英语 |
| 出版者 | ACADEMIC PRESS INC ELSEVIER SCIENCE |
| WOS记录号 | WOS:000486104500048 |
| 资助机构 | National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Transformational Technologies for Clean Energy and Demonstration, Strategic Priority Research Program of the Chinese Academy of Sciences ; Transformational Technologies for Clean Energy and Demonstration, Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Hundred Talents Programme of the Chinese Academy of Sciences ; Hundred Talents Programme of the Chinese Academy of Sciences ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Transformational Technologies for Clean Energy and Demonstration, Strategic Priority Research Program of the Chinese Academy of Sciences ; Transformational Technologies for Clean Energy and Demonstration, Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Hundred Talents Programme of the Chinese Academy of Sciences ; Hundred Talents Programme of the Chinese Academy of Sciences ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Transformational Technologies for Clean Energy and Demonstration, Strategic Priority Research Program of the Chinese Academy of Sciences ; Transformational Technologies for Clean Energy and Demonstration, Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Hundred Talents Programme of the Chinese Academy of Sciences ; Hundred Talents Programme of the Chinese Academy of Sciences ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Transformational Technologies for Clean Energy and Demonstration, Strategic Priority Research Program of the Chinese Academy of Sciences ; Transformational Technologies for Clean Energy and Demonstration, Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Hundred Talents Programme of the Chinese Academy of Sciences ; Hundred Talents Programme of the Chinese Academy of Sciences |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/172621]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 通讯作者 | Li, Wei-Zhen; Chen, Bing-Hui |
| 作者单位 | 1.Washington State Univ, Voiland Sch Chem Engn & Bioengn, Pullman, WA 99164 USA 2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China 3.Xiamen Univ, Natl Engn Lab Green Chem Prod Alcohols Ethers Est, Dept Chem & Biochem Engn, Coll Chem & Chem Engn, Xiamen 361005, Fujian, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Fen,Zhang, Jing-Cai,Chen, Zhi-Qiang,et al. Water-saving dry methanation for direct conversion of syngas to synthetic natural gas over robust Ni0.1Mg0.9Al2O4 catalyst[J]. JOURNAL OF CATALYSIS,2019,375:466-477. |
| APA | Wang, Fen.,Zhang, Jing-Cai.,Chen, Zhi-Qiang.,Lin, Jing-Dong.,Li, Wei-Zhen.,...&Chen, Bing-Hui.(2019).Water-saving dry methanation for direct conversion of syngas to synthetic natural gas over robust Ni0.1Mg0.9Al2O4 catalyst.JOURNAL OF CATALYSIS,375,466-477. |
| MLA | Wang, Fen,et al."Water-saving dry methanation for direct conversion of syngas to synthetic natural gas over robust Ni0.1Mg0.9Al2O4 catalyst".JOURNAL OF CATALYSIS 375(2019):466-477. |
入库方式： OAI收割
来源：大连化学物理研究所
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