Wan Abu Bakar, Wan Azelee and Othman, Mohd. Yusuf and Ali, Rusmidah and Ching, Kuan Yong and Toemen, Susilawati (2009) The investigation of active sites on nickel oxide based catalysts towards the in-situ reactions of methanation and desulfurization. Modern Applied Science, 3 (2). pp. 35-43.
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Supported nickel oxide based catalysts of Fe/ Co/ Ni (10: 30: 60)-Al2O3 and Pr/ Co/ Ni (5: 35: 60)-Al2O3 that were prepared by wetness impregnation method showed potential catalysts for the in-situ reactions of H2S desulfurization and CO2 methanation from ambient temperature up to 300 oC. X-ray Photoelectron Spectroscopy revealed Ni2O3 and Fe3O4 as the surface active components on the Fe/ Co/ Ni (10: 30: 60)-Al2O3 catalyst, while Ni2O3 and Co3O4 on the Pr/ Co/ Ni (5: 35: 60)-Al2O3 catalyst. Energy Dispersive X-ray analysis indicated the presence of 2.7 % and 0.9 % of sulfur on the spent Fe/ Co/ Ni (10: 30: 60)-Al2O3 and Pr/ Co/ Ni (5: 35: 60)-Al2O3 catalysts, respectively. N2 adsorption-desorption analysis showed reduction of 5.5 % on the surface area of the spent Fe/ Co/ Ni (10: 30: 60)-Al2O3 catalyst. However, the surface area of the spent Pr/ Co/ Ni (5: 35: 60)-Al2O3 catalyst increased by 8.6 %.
|Uncontrolled Keywords:||active site, methanation, desulfurization, nickel oxide, catalyst|
|Subjects:||Q Science > QD Chemistry|
|Deposited By:||Siti Khairiyah Nordin|
|Deposited On:||12 Aug 2011 02:08|
|Last Modified:||12 Aug 2011 02:08|
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