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Effects of Ni particle size on amination of monoethanolamine over Ni-Re/SiO2 catalysts

文献类型：期刊论文

作者Yan, Li3; Ma, Lei2,3,4; Ding, Yunjie1,3; Lu, An-Hui4
刊名CHINESE JOURNAL OF CATALYSIS
出版日期2019-04-01
卷号40期号:4页码:567-579
关键词Particle size effects Monoethanolamine Amination reaction Ni-Re/SiO2 Turn over frequency
ISSN号0253-9837
通讯作者Yan, Li(yanli@dicp.ac.cn) ; Ding, Yunjie(dyj@dicp.ac.cn)
英文摘要Ni-Re/SiO2 catalysts with controllable Ni particle sizes (4.5-18.0 nm) were synthesized to investigate the effects of the particle size on the amination of monoethanolamine (MEA). The catalysts were characterized by various techniques and evaluated for the amination reaction in a trickle bed reactor at 170 degrees C, 8.0 MPa, and 0.5 h(-1) liquid hourly space velocity of MEA (LHSVMEA) in NH3/H-2 atmosphere. The Ni-Re/SiO2 catalyst with the lowest Ni particle size (4.5 nm) exhibited the highest yield (66.4%) of the desired amines (ethylenediamine (EDA) and piperazine (PIP)). The results of the analysis show that the turnover frequency of MEA increased slightly (from 193 to 253 h(-1)) as the Ni particle sizes of the Ni-Re/SiO2 catalysts increased from 4.5 to 18.0 nm. Moreover, the product distribution could be adjusted by varying the Ni particle size. The ratio of primary to secondary amines increased from 1.0 to 2.0 upon increasing the Ni particle size from 4.5 to 18.0 nm. Further analyses reveal that the Ni particle size influenced the electronic properties of surface Ni, which in turn affected the adsorption of MEA and the reaction pathway of MEA amination. Compared to those of small Ni particles, large particles possessed a higher proportion of high-coordinated terrace Ni sites and a higher surface electron density, which favored the amination of MEA and NH3 to form EDA. (C) 2019, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
WOS关键词REDUCTIVE AMINATION ; NICKEL PARTICLES ; FT-IR ; COBALT ; HYDRODEOXYGENATION ; DEHYDROGENATION ; ADSORPTION ; ALUMINA ; SILICA ; OXIDE
资助项目National Natural Science Foundation of China[21273227] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB17000000]
WOS研究方向Chemistry ; Engineering
语种英语
WOS记录号WOS:000463466100010
出版者SCIENCE PRESS
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences
源URL[http://cas-ir.dicp.ac.cn/handle/321008/165572]  
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Yan, Li; Ding, Yunjie
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Liaoning, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Liaoning, Peoples R China
4.Dalian Univ Technol, Sch Chem Engn, State Key Lab Fine Chem, Dalian 116024, Liaoning, Peoples R China
推荐引用方式
GB/T 7714		 Yan, Li,Ma, Lei,Ding, Yunjie,et al. Effects of Ni particle size on amination of monoethanolamine over Ni-Re/SiO2 catalysts[J]. CHINESE JOURNAL OF CATALYSIS,2019,40(4):567-579.
APA Yan, Li,Ma, Lei,Ding, Yunjie,&Lu, An-Hui.(2019).Effects of Ni particle size on amination of monoethanolamine over Ni-Re/SiO2 catalysts.CHINESE JOURNAL OF CATALYSIS,40(4),567-579.
MLA Yan, Li,et al."Effects of Ni particle size on amination of monoethanolamine over Ni-Re/SiO2 catalysts".CHINESE JOURNAL OF CATALYSIS 40.4(2019):567-579.

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来源：大连化学物理研究所

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