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Template preparation of high-surface-area barium hexaaluminate as nickel catalyst support for improved CO methanation
Gao, Jiajian1,2; Jia, Chunmiao1; Zhang, Meiju1; Gu, Fangna1; Xu, Guangwen1; Zhong, Ziyi3; Su, Fabing1
2013
Source PublicationRSC ADVANCES
Volume3Issue:39Pages:18156-18163
AbstractWe report the simple preparation of the barium hexaaluminate (BaO center dot 6Al(2)O(3), BHA) with high surface area (BHA-HSA) (>100 m(2) g(-1)) through a coprecipitation method using carbon black as the hard template. Ni catalysts supported on BHA-HSA (Ni/BHA-HSA) with different NiO loadings (10, 20, and 40 wt%) were investigated in CO methanation for the production of synthetic natural gas (SNG). The CO methanation reaction was carried out at 0.1 and 3.0 MPa with a weight hourly space velocity of 30 000 mL g(-1) h(-1). It was found that Ni/BHA-HSA catalysts showed increased activity at low temperature (240-400 degrees C) compared with more conventional Ni/BHA catalysts with the same NiO loadings. A highest CH4 yield of 95.7% can be obtained over Ni/BHA-HSA (40 wt% of NiO loading) at 400 degrees C and 3.0 MPa, and a lifetime test shows that, at 500 degrees C and 3.0 MPa, it is more stable than Ni/BHA. The serious aggregation of Ni nanoparticles is the major reason for the deactivation of the latter. The work demonstrates that BHA-HSA can be effectively prepared using carbon black as the hard template and is more suitable as a Ni catalyst support for CO methanation.
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
Indexed BySCI
Language英语
WOS KeywordSYNTHETIC NATURAL-GAS ; SUBSTITUTED HEXAALUMINATE ; OXIDATION ; OXIDES ; COMBUSTION ; SYNGAS ; SOL
WOS Research AreaChemistry
WOS SubjectChemistry, Multidisciplinary
WOS IDWOS:000325275300075
Citation statistics
Cited Times:25[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/13505
Collection研究所(批量导入)
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.ASTAR, Inst Chem Engn & Sci, Singapore 627833, Singapore
Recommended Citation
GB/T 7714
Gao, Jiajian,Jia, Chunmiao,Zhang, Meiju,et al. Template preparation of high-surface-area barium hexaaluminate as nickel catalyst support for improved CO methanation[J]. RSC ADVANCES,2013,3(39):18156-18163.
APA Gao, Jiajian.,Jia, Chunmiao.,Zhang, Meiju.,Gu, Fangna.,Xu, Guangwen.,...&Su, Fabing.(2013).Template preparation of high-surface-area barium hexaaluminate as nickel catalyst support for improved CO methanation.RSC ADVANCES,3(39),18156-18163.
MLA Gao, Jiajian,et al."Template preparation of high-surface-area barium hexaaluminate as nickel catalyst support for improved CO methanation".RSC ADVANCES 3.39(2013):18156-18163.
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