| Methane Conversion to C2 Hydrocarbons in Solid State Oxide Electrolyte Membrane Reactor |
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| 作者姓名： | 李俊 赵玲 朱中南 奚旦立 |
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| 作者单位： | [1]Institute of Environment Science and Engineering, Donghua University, Shanghai 200051 [2]UNILAB Research Center of Chemical Reaction Engineering, East China University of Science and Technology, Shanghai 200023 |
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| 基金项目： | This work was supported supported by the Center Petrochemical Company of China （X599027）. |
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| 摘 要： | Provskite-type catalysts, Ln0.6Sr0.4FexCo1-x O3 （Ln = Nd, Pr, Gd, Sm, La, 0〈x〈1） and Ln0.8Na0.2CoO3（Ln=La, Gd, Sm） were synthesized, their catalytic properties in the oxidative coupling of methane （OCM） were examined in a fixed-bed reactor. The former group presented higher activity in the OCM, but the main product was carbon dioxide. While the later group showed lower activity but much higher selectivity to C2 hydrocarbons compared with the former. Electrochemical measurements were conducted in a solid oxide membrane reactor with La0.8Na0.2 CoO3 as catalyst. The results showed that methane was oxidized to carbon dioxide and ethane by two parallel reactions. Ethane was oxidized to ethene and carbon dioxide. A fraction of ethene was oxidized deeply to carbon dioxide. The total selectivity to C2 hydrocarbons exceeded 70%. Based on the experimental results, a kinetic model was suggested to describe the reaction results.
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| 关 键 词： | 固定床反应器 催化剂 电化学氧化 甲烷 膜分离 |
| 收稿时间： | 2004-09-20 |
Methane Conversion to C2 Hydrocarbons in Solid State Oxide Electrolyte Membrane Reactor |
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| LI Jun,ZHAO Ling,ZHU Zhong-nan,XI Dan-li.Methane Conversion to C2 Hydrocarbons in Solid State Oxide Electrolyte Membrane Reactor[J].Journal of Donghua University,2005,22(5):59-63. |
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| Authors: | LI Jun ZHAO Ling ZHU Zhong-nan XI Dan-li |
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| Abstract: | Provskite-type catalysts, Ln0.6 Sr0.4 FexCo1-xO3 (Ln = Nd, Pr, Gd, Sm, La, 0
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| Keywords: | provskite-type catalyst methane oxidative coupling fixed-bed reactor solid oxide membrane reactor electrochemical oxygen |
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