Influence of support on resistance to carbon-deposition of catalyst for CH4, CO2 with O2 to synthesis gas |
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Authors: | Fu Liyong Xie Weiguo Lü Shaojie and Qiu Fali |
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Institution: | (1) Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, 610041 Chengdu, China |
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Abstract: | In the reaction of catalytic oxidation of CH4, CO2 with O2 to synthesis gas, carbon-deposition is an important factor for deactivation. By adding different oxides to Ni/Al2O3 catalyst, its resistance to carbon-deposition was improved. The experimental results indicate that the order of resistance
to carbon-deposition is as follows: Ni/CaO-Al2O3>Ni/MgO-Al2O3>Ni/ TiO2-Al2O3 > Ni/CeO2-Al2O3>Ni/La2O3-Al2O3>Ni/Y2O3-Al2O3>Ni/Fe2O3-Al2O3>Ni/Al2O3. The catalysts were characterized by CO2-TPD, O2-TPD and XPS methods. Here the relation between the order of resistance to carbon-deposition and performance of catalyst is
discussed. |
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Keywords: | methane carbon dioxide oxygen synthesis gas resistance to carbon-deposition |
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