Catalytic activities and coking characteristics of oxides-supported Ni catalysts for CH4 reforming with carbon dioxide

Wang, SB and Lu, GQ (1998) Catalytic activities and coking characteristics of oxides-supported Ni catalysts for CH4 reforming with carbon dioxide. Energy & Fuels, 12 2: 248-256. doi:10.1021/ef970092m


Author Wang, SB
Lu, GQ
Title Catalytic activities and coking characteristics of oxides-supported Ni catalysts for CH4 reforming with carbon dioxide
Journal name Energy & Fuels   Check publisher's open access policy
ISSN 0887-0624
Publication date 1998-01-01
Year available 1998
Sub-type Article (original research)
DOI 10.1021/ef970092m
Open Access Status Not yet assessed
Volume 12
Issue 2
Start page 248
End page 256
Total pages 9
Place of publication WASHINGTON
Publisher AMER CHEMICAL SOC
Language eng
Abstract Catalytic activities and deactivation characteristics of oxides-supported nickel catalysts for the reaction of methane reforming with carbon dioxide were investigated. The dynamic carbon deposition on various nickel catalysts was also studied by a thermogravimetric method. Among the catalysts prepared, Ni/La2O3, Ni/alpha-Al2O3, Ni/SiO2, and Ni/CeO2 showed very high CH4 and CO2 conversions and moderate deactivation whereas Ni/MgO and Ni/TiO2 had lower conversions when the Ni reduction was conducted at 500 degrees C. When Ni/MgO catalyst was reduced at 800 degrees C, it exhibited not only comparable conversions of CH4 and CO2 with other active catalysts but also much longer period of stability without deactivation. The amount of carbon deposited in Ni-based catalysts varied depending on the nature of support and followed the order of Ni/La2O3 > Ni/alpha-Al2O3 > Ni/SiO2 > Ni/MgO > Ni/CeO2 at 700 degrees C. The carbons formed on the catalyst surface showed different structural and chemical properties, and these in turn affected the catalytic activity of the catalysts.
Keyword Energy & Fuels
Engineering, Chemical
Solid-solution Catalysts
Synthesis Gas
Rh Catalysts
Selective Oxidation
Lanthanide Oxides
Nickel-catalysts
Methane
Co2
Deactivation
Activation
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Australian Institute for Bioengineering and Nanotechnology Publications
 
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Created: Mon, 13 Aug 2007, 20:22:58 EST