基于质子导体固体氧化物燃料电池制备乙烯的电化学模型研究

doi:10.12052/gdutxb.210188

Abstract

Abstract: An electrochemical model of proton-conducting solid oxide fuel cells(H-SOFCs) is built for investigating the electrochemical performance, Faraday efficiency and energy efficiency of co-generation of electric energy and ethylene in H-SOFCs. The simulation results show that ethylene production based on H-SOFCs needs external energy. Increasing the temperature is beneficial for improving the conversion rate of ethane and reducing the polarization loss of fuel cells. For the simulated H-SOFCs, the ohmic and activation over potentials are dominant, and the concentration over potential is almost negligible. The non-negligible electronic conductivity in the proton-conducting electrolyte layer leads to the internal short circuit of the fuel cells and the formation of leakage current. The leakage current density increases with the output voltage, resulting in the decrease of Faraday efficiency and energy efficiency.

Key words: ethylene, proton-conducting solid oxide fuel cells, electrochemical model

CLC Number:

TM911.4

Ou Yong-zhen, Qiu Rui-ming, Lei Li-bin. Electrochemical Modeling Study of Ethylene Production Based on Proton-conducting Solid Oxide Fuel Cells[J].Journal of Guangdong University of Technology, 2023, 40(02): 82-87.

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Electrochemical Modeling Study of Ethylene Production Based on Proton-conducting Solid Oxide Fuel Cells

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