ＣＯ２分離を目的とする固体電解質燃料電池複合サイクルの研究

波江 貞弘, 汐崎 浩毅, 野村 雅宣, 川越 陽一, 熊倉 孝尚

doi:10.1299/kikaib.59.2702

ＣＯ２分離を目的とする固体電解質燃料電池複合サイクルの研究

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書誌事項

タイトル別名

Combined Cycle of Solid Oxide Fuel Cell and Turbines with the Aim of Separating CO2 Gas.
CO2 ブンリオモクテキトスルコタイデンカイシツネンリョウデン

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抄録

For protection of the global environment, suppression of CO₂ gas emission from power systems is required. In the present paper, separation of CO₂ gas from fossil fuel with a combined SOFC and turbine system is proposed to satisfy this requirement. The results from a model calculation of the system indicate that the total thermal efficiency of the system is higher than 60% (LHV) and increases with increase in fuel utilization and also with decreases in excess air factor, steam carbon ratio, air recirculation ratio and system pressure. Furthermore, CO₂ concentration in the exhaust gas from the present system is 1/10 or less of that from existing heat engines. In addition, CO₂ concentration supply to a CO₂ separator in the system is 10 times as high. This means that the present CO₂ separator can be minimized in volume to about 1/10 of the volume of separators applied to existing systems.