2252 DIR-MCFC における電解質揮発量の画像計測

概要

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DIR-MCFC have problem that the reforming catalysts are polluted by the volatile species of molten carbonate. However, main species of volatized molten carbonate and its physical properties have not been clarified. In this research, volatile species of molten carbonate is assumed to be Hydroxide such as KOH, LiOH and NaOH etc. because molten salts easily react with water (the supplied water and produced water). As Hydroxide is a gas-phase in the operating temperature region, cannot be measured by using image measurement technique. Because Hydroxide becomes a carbonate (solid-phase) if it reacts with CO_2,Hydroxide can be measured by measuring the carbonate. And the amount of Hydroxide volatilization is calculated by concentration presumption from the intensity information by image measurement. As a result, KOH concentration was measured by reacting with CO_2. It was quantitatively clarified that the temperature of KOH melt is in proportion to KOH concentration.
社団法人日本機械学会の論文
2003-08-05