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Effects of CeO2 and CaO composite promoters on the properties of eggshell Ni/MgO-Al2O3 catalysts for partial oxidation of methane to syngas |
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| Authors: | Yejun Qiu Jixiang Chen and Jiyan Zhang |
| Institution: | (1) Department of Catalytic Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China;(2) Department Material Science & Engineering, Harbin Institute Technology, Shenzhen Graduate School, Shenzhen, 518055, China |
| Abstract: | The effects of CeO2 and CaO composite promoters on the properties of eggshell Ni/MgO-Al2O3 catalysts of 1.5 mm diameter for the partial oxidation of methane to syngas were investigated. The addition of 1wt.% promoters could enhance the catalytic performance of the Ni/MgO-Al2O3 catalyst, while further increasing the promoter content to 4wt.% results in the decrease of reactivity. The catalytic property is related to the oxidizability of surface nickel species. |
| Keywords: | Nickel-based catalyst eggshell catalyst partial oxidation of methane syngas |
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