CAS OpenIR  > 研究所(批量导入)
Necessity of moderate metal-support interaction in Ni/Al2O3 for syngas methanation at high temperatures
Alternative TitleRSC Adv.
Cui, D. M.; Liu, J.; Yu, J.; Yue, J. R.; Su, F. B.; Xu, G. W.
2015
Source PublicationRsc Advances
Issue14Pages:10187-10196
Abstract

This article investigates the necessary metal-support interaction in the Ni-Mg-Zr-La/Al2O3 catalyst for high-temperature syngas methanation through varying the calcination and reduction temperatures during catalyst preparation. Atmospheric syngas methanation was conducted continuously but at 823 K and 923 K alternatively. Raising the calcination temperature increased the interaction between the nickel and alumina support but lowered the surface area of the catalyst. The catalyst calcined at the higher temperature such as 1073 K exhibited the highest initial activity in spite of its least active sites. However, only those catalysts with moderate interaction, such as that calcined at 973 K, showed stable activity of methanation above 823 K. Too small surface area of the catalyst calcined at too high temperatures, such as 1073 K, would lead to serious aggregation of nickel particles and thus cause carbon deposition during methanation. Varying the reduction temperature for the catalyst demonstrated that the excessive reduction of the nickel species such as that reduced at 1073 K almost removed all the nickel aluminates to cause the catalyst to have low activity, quick nickel aggregation and carbon deposition. This further justified the claim that moderate metal-support interaction is necessary to ensure the high activity and stability of the Ni/Al2O3 catalyst for syngas methanation at high temperatures.

KeywordCatalytic Partial Oxidation Nickel-alumina Catalysts Synthetic Natural-gas Co Methanation Ni Catalysts Ni/mgo Catalysts Combined H2o Gtl Process Steam Hydrogenation
URL查看原文
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/11716
Collection研究所(批量导入)
Recommended Citation
GB/T 7714
Cui, D. M.,Liu, J.,Yu, J.,et al. Necessity of moderate metal-support interaction in Ni/Al2O3 for syngas methanation at high temperatures[J]. Rsc Advances,2015(14):10187-10196.
APA Cui, D. M.,Liu, J.,Yu, J.,Yue, J. R.,Su, F. B.,&Xu, G. W..(2015).Necessity of moderate metal-support interaction in Ni/Al2O3 for syngas methanation at high temperatures.Rsc Advances(14),10187-10196.
MLA Cui, D. M.,et al."Necessity of moderate metal-support interaction in Ni/Al2O3 for syngas methanation at high temperatures".Rsc Advances .14(2015):10187-10196.
Files in This Item:
File Name/Size DocType Version Access License
Necessity of moderat(1174KB)期刊论文出版稿限制开放CC BY-NC-SAApplication Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Cui, D. M.]'s Articles
[Liu, J.]'s Articles
[Yu, J.]'s Articles
Baidu academic
Similar articles in Baidu academic
[Cui, D. M.]'s Articles
[Liu, J.]'s Articles
[Yu, J.]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Cui, D. M.]'s Articles
[Liu, J.]'s Articles
[Yu, J.]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.