Exergy Recuperation of Exhaust Heat by Electrochemical Partial Oxidation

采用柱面准2D非等温模型进行数值分析，量化了MGT-EPOX组合系统实现的电池性能和吸热量，发电效率提高了8.5个点，为SOFC设定了目标。在建立了满足电极和电解液多种物理传输性能要求的表征和制备工艺后，采用比率频率溅射法将具有低温部分氧化选择性和抗结焦性能的薄层铂/氧化铝催化剂复合到阳极和电解液的界面上。以干甲烷为燃料制备的固体氧化物燃料电池的最大功率密度为207.5 mW/cm~2，在600℃时，环氧乙烷反应的CO选择性为84.3%。

The numerical analysis using cylindrical quasi-2D non-isothermal model quantified the cell performance and heat uptake realized by the MGT-EPOx combined system in which the power generation efficiency increase by 8.5 points, and the result set a target for the SOFC. After the characterization and fabrication process which satisfy multi-physical transport properties required for the electrodes and electrolyte at a high level were established, thin-layered Pt/Al2O3 catalyst which have both the selectivity of partial oxidation at low temperatures and anti-coking was incorporated between the interface of anode and electrolyte by Ratio Frequency Sputtering method. The maximum power density of the fabricated SOFC was 207.5 mW/cm2 using dry methane as fuel and CO selectivity derived by EPOx reaction was 84.3% at 600deg-C.