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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 35, Number 8
BKCSDE 35(8)
August 20, 2014

Title	Copper/Nickel/Manganese Doped Cerium Oxides Based Catalysts for Hydrogenation of CO₂
Author	Susilawati Toemen, Wan Azelee Wan Abu Bakar*, Rusmidah Ali
Keywords	Carbon dioxide, Catalyst, Hydrogenation, Coal burning power plant, Flue gas
Abstract	The recycling technology by the catalytic conversion is one of the most promising techniques for the CO2 treatment of coal burning power plant flue gases. The conversion of CO2 to valuable product of CH4 can be used as a fuel to run the turbine for electricity generation. Through this technique, the amount of coal needed for the combustion in a gas turbine can be reduced as well as CO2 emissions. Therefore, a series of catalysts based on cerium oxide doped with copper, nickel and manganese were prepared by impregnation method. From the characterization analysis, it showed that the prepared catalysts calcined at 400 oC were amorphous in structure with small particle size in the range below 100 nm. Meanwhile, the catalyst particles were aggregated and agglomerated with higher surface area of 286.70 m2g−1. By increasing the calcination temperature of catalysts to 1000 oC, the particle sizes were getting bigger (> 100 nm) and having moderate crystallinity with lower surface area (67.90 m2g−1). From the catalytic testing among all the prepared catalysts, Mn/Ce-75/Al2O3 calcined at 400 oC was assigned as the most potential catalyst which gave 49.05% and 56.79% CO2 conversion at reaction temperature of 100 oC and 200 oC, respectively.
Page	2349 - 2356
Full Text	PDF

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