Highly Selective Co Methanation over Amorphous Ni–Ru–B/Zro2 Catalyst
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Chinese Chemical Letters 20 (2009) 889–892 www.elsevier.com/locate/cclet
Highly selective CO methanation over amorphous Ni–Ru–B/ZrO2 catalyst
Qi Hai Liu, Xin Fa Dong *, Wei Ming Lin
School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China Received 15 December 2008
Abstract Amorphous Ni–Ru–B/ZrO2 catalyst was prepared by the means of chemical reduction, and selective CO methanation as a strategy for CO removal in fuel processing applications was investigated over the amorphous Ni–Ru–B/ZrO2 catalyst. The result showed that, at the temperature of 210–230 8C, the catalyst was shown to be capable of reducing CO in a hydrogen-rich reformate to less than 10 ppm, while keeping the CO2 conversion below 1.55% and the hydrogen consumption below 6.50%. # 2009 Xin Fa Dong. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.
Keywords: Selective methanation; CO; Amorphous; Ni–Ru–B/ZrO2 catalyst
Removal of CO from reformed fuels by means of selective methanation for fuel cells has been recently proved to be an effective strategy [1,2], for it does not require any oxygen (air) addition, since the necessary reactants (CO and H2) are already present. The challenge of this means is that the CO2 co-methanation will consume a great amount of hydrogen because of the presence of relative high concentration of CO2 (18–23 vol%). As a result, it was required for the catalyst to have excellent activity and high selectivity for the CO methanation to avoid the co-methanation of CO2. Among all the catalyst investigated previously, crystalline Ni-base and Ru-base catalysts were paid the most attention, such as Ni/ZrO2 [1], Ru/TiO2 [3], Rh-modified Ni–La2O3–Ru/Al2O3 [4] and Ru/Al2O3 [2,5] catalysts. For amorphous catalyst, although it has been proved to be excellent for many hydrogenating reactions [6,7], it has not been considered seriously to be utilized
Chinese Chemical Letters 20 (2009) 889–892 www.elsevier.com/locate/cclet
Highly selective CO methanation over amorphous Ni–Ru–B/ZrO2 catalyst
Qi Hai Liu, Xin Fa Dong *, Wei Ming Lin
School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China Received 15 December 2008
Abstract Amorphous Ni–Ru–B/ZrO2 catalyst was prepared by the means of chemical reduction, and selective CO methanation as a strategy for CO removal in fuel processing applications was investigated over the amorphous Ni–Ru–B/ZrO2 catalyst. The result showed that, at the temperature of 210–230 8C, the catalyst was shown to be capable of reducing CO in a hydrogen-rich reformate to less than 10 ppm, while keeping the CO2 conversion below 1.55% and the hydrogen consumption below 6.50%. # 2009 Xin Fa Dong. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.
Keywords: Selective methanation; CO; Amorphous; Ni–Ru–B/ZrO2 catalyst
Removal of CO from reformed fuels by means of selective methanation for fuel cells has been recently proved to be an effective strategy [1,2], for it does not require any oxygen (air) addition, since the necessary reactants (CO and H2) are already present. The challenge of this means is that the CO2 co-methanation will consume a great amount of hydrogen because of the presence of relative high concentration of CO2 (18–23 vol%). As a result, it was required for the catalyst to have excellent activity and high selectivity for the CO methanation to avoid the co-methanation of CO2. Among all the catalyst investigated previously, crystalline Ni-base and Ru-base catalysts were paid the most attention, such as Ni/ZrO2 [1], Ru/TiO2 [3], Rh-modified Ni–La2O3–Ru/Al2O3 [4] and Ru/Al2O3 [2,5] catalysts. For amorphous catalyst, although it has been proved to be excellent for many hydrogenating reactions [6,7], it has not been considered seriously to be utilized
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