A Chemical Heat Pump With An Endothermic And Reversible Chemical System Incorporated
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説明
<jats:title>Abstract</jats:title><jats:p>A conceptual design of chemical heat pump system with reactive ceramics incorporated has been proposed and exemplified by several chemical reactions on activated metal oxides. It functions at temperatures of waste heat. The system involves the following endothermic reactions; (1) activation of metal oxide ceramics to activated ceramics using an oxygen-free inert gas, (2) H<jats:sub>2</jats:sub>O decomposition by the activated ceramics to form H<jats:sub>2</jats:sub> gas at 300°C, (3) formation of CH<jats:sub>4</jats:sub> from H<jats:sub>2</jats:sub> and CO<jats:sub>2</jats:sub> at 200–300°C, (4) CO<jats:sub>2</jats:sub> decomposition to gaseous CO on activated oxide ceramics at 600–700°C. The working materials are typically magnetite, metal-bearing ferrites, transition metal-modified magnetite and other metal oxides. These basic reactions have been demonstrated to occur at temperatures of waste heat. The chemical heat pump will be effectively operated by incorporating their oxide membrane into the system. These findings have facilitated us to exploit a new field of research work. The above integrated chemical system may help the mitigation of CO<jats:sub>2</jats:sub> in the global scale.</jats:p>
収録刊行物
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- MRS Proceedings
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MRS Proceedings 344 1994-01-01
Springer Science and Business Media LLC