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Alumina supported manganese oxide doped noble metal oxides for catalytic methanation reaction of simulated natural gas

Wan Abu Bakar, Wan Azelee and Ali, Razak and Abdul Kadir, Abdul Aziz and Abd Rahim, H. F. and Jue, L. C. (2011) Alumina supported manganese oxide doped noble metal oxides for catalytic methanation reaction of simulated natural gas. Research Journal of Chemistry and Environment, 15 (3). pp. 19-26. ISSN 0972-0626

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Abstract

Manganese oxide doped noble metal supported on alumina was prepared for methanation reaction by doping the manganese oxide based catalyst with noble metals namely ruthenium and palladium via impregnation method. All the catalysts were calcined at 400°C and 1000°C for 5 hours separately. In-house-built micro reactor with Fourier Transform Infra Red (FTIR) detector and Gas Chromatography (GC) were used to study the percentage of carbon dioxide (CO 2) conversion and also the percentage of methane (CH 4) formation. It was found that the catalyst with Ru:Mn(25:75)-Al 2O 3 calcined at 1000°C showed 60.21% formation of CH 4 at 200°C. FESEM illustrated that catalyst surface is covered with small and dispersed particles with undefined shape. The X-Ray Diffraction (XRD) analysis revealed that the catalyst is crystalline. Moreover, Nitrogen Gas Adsorption (NA) analysis showed that both fresh and spent catalysts are of mesoporous material with type III isotherm and type H 3 hysteresis loop. Furthermore, fresh catalyst has 84.887 Å pore diameter which is bigger than used catalyst which is 79.053Å.

Item Type:Article
Uncontrolled Keywords:catalyst, catalytic, manganese oxide, methanation, palladium, ruthenium
Subjects:Q Science
Divisions:Science
ID Code:28666
Deposited By: Liza Porijo
Deposited On:12 Nov 2012 08:03
Last Modified:12 Nov 2012 08:03

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