Numerical simulation on the effect of <i>n</i>(Cu)/<i>n</i>(Ni) ratio in solid oxide fuel cell Cu/Ni-LSCM anode on carbon deposition

化学工业与工程

Chemcial Industry and Engineering

2022, Vol. 39

Issue (3) :89-97 DOI: 10.13353/j.issn.1004.9533.20210395

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Numerical simulation on the effect of n(Cu)/n(Ni) ratio in solid oxide fuel cell Cu/Ni-LSCM anode on carbon deposition

WANG Bin^1,2, YU Jie^1,2, KANG Dingwen^1,2, LIU Hui^1,2, QIAO Cui^1,2, LYU Guoqiang^1,2, MA Wenhui^1,2

1. National Key Laboratory for Clean Application of Complex Nonferrous Metal Resources, Kunming University of Science, Kunming 650093, China;
2. Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China

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Abstract When the solid oxide fuel cell (SOFC) uses hydrocarbons as fuel, the porous anode is prone to serious carbon deposition, resulting in the decrease of anode catalytic activity, the decrease of cell power density and the sharp attenuation of cell life. Lanthanum chromate-based perovskite materials have good stability, electrocatalytic activity and carbon deposition resistance under high temperature oxidation and reduction atmosphere. A kinetic model of dry reforming of methane and carbon dioxide in LSCM and Cu/Ni-LSCM was established, which coupled momentum transfer, mass transfer, chemical reaction kinetics, domain differential equation and gas mass transfer model in porous media. The carbon deposition resistance, catalytic activity and porosity of Cu/Ni-LSCM anode materials were studied using the model. It is concluded that the introduction of Cu can significantly reduce the carbon deposition rate and increase the fuel conversion rate on a certain basis. The thermal decomposition of methane is the main cause of carbon deposition. At the same time, the simulation results show that the anode fuel inlet is the most serious carbon deposition area.

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	WANG Bin
	YU Jie
	KANG Dingwen
	LIU Hui
	QIAO Cui
	LYU Guoqiang
	MA Wenhui

Keywords： solid oxide fuel cell (SOFC) anode material Cu/Ni-LSCM carbon deposition numerical simulation

Received 2021-07-21;

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WANG Bin, YU Jie, KANG Dingwen, LIU Hui, QIAO Cui, LYU Guoqiang, MA Wenhui.Numerical simulation on the effect of n(Cu)/n(Ni) ratio in solid oxide fuel cell Cu/Ni-LSCM anode on carbon deposition[J] Chemcial Industry and Engineering, 2022,V39(3): 89-97

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