Selective methanation of CO in H2-rich gas stream by synthetic nickel-containing smectite based catalysts

Yoshida, Hiroshi; Watanabe, Kou; Iwasa, Nobuhiro; Fujita, Shin-ichiro; Arai, Masahiko

Selective methanation of CO in H2-rich gas stream by synthetic nickel-containing smectite based catalysts

Yoshida, Hiroshi; Watanabe, Kou; Iwasa, Nobuhiro et al.

Applied Catalysis B: Environmental, 2015, 162, 93-97

Permalink : https://hdl.handle.net/2115/57654

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アクセス権	open access
URI	https://hdl.handle.net/2115/57654
タイトル	Selective methanation of CO in H2-rich gas stream by synthetic nickel-containing smectite based catalysts
著者	Yoshida, Hiroshi ; Watanabe, Kou ; Iwasa, Nobuhiro ; Fujita, Shin-ichiro ; Arai, Masahiko
著者名 Yoshida, Hiroshi
著者名 Watanabe, Kou
著者名 Iwasa, Nobuhiro
著者名 Fujita, Shin-ichiro
e-Rad_Researcher 60125490 著者名 Arai, Masahiko
言語	英語
キーワード	CO removal
	Selective methanation
	Smectite
	Nickel
	Platinum doping
発行日	2015-01
出版者	Elsevier
収録物名	Applied Catalysis B: Environmental
巻(号)	162
ページ	93-97
抄録	The selective methanation of CO in a H-2-rich gas stream has been investigated with nickel catalysts including synthetic nickel-containing smectite (SM(Ni)) catalysts undoped and doped with platinum in small quantities and conventional nickel catalysts on SiO2, Al2O3, ZrO2, and MgO. The nickel content in SM(Ni) and the nickel loading in the other catalysts were the same, being 35 wt.%. The CO conversion with SM(Ni) was smaller than those with the conventional supported nickel catalysts at temperatures of 150-300 degrees C. However, the former showed the higher selectivity to the methanation of CO of >95% at 250 degrees C or below compared to the latter catalysts. The low activity of SM(Ni) was ascribed to a small area of exposed nickel species. The area of exposed nickel species was improved by doping a reduction promoter of platinum to SM(Ni), resulting in an increase in the activity while keeping the high selectivity to the CO methanation. The influence of reduction temperature and platinum loading on the activity and selectivity was investigated.
資源タイプ	学術雑誌論文
出版タイプ	Accepted Manuscript
PISSN	0926-3373
関連情報 (isVersionOf)	出版社版DOI https://doi.org/10.1016/j.apcatb.2014.06.029