Selective Recovery of Radioactive Carbon Dioxide Released from Nuclear Off-gas by Adsorption
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概要
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Off gases produced in the reprocessing of spent nuclear fuel contain various radioactive gases and emission of these gases to the environment must be suppressed as low as possible. 14C with a long half-life, which is mainly released as the form of carbon dioxide, is one of such gaseous radioactive materials. One of the measures to capture radioactive gases from the off-gas is the utilization of adsorption technique. In this work, the adsorption behavior of carbon dioxide on various adsorbents was studied. It was found that a MS4A (Molecular Sieve 4A) adsorbent is more suitable for selective recovery of carbon dioxide. Thus, more detailed adsorption characteristics of carbon dioxide were studied for a MS4A adsorbent. Moreover, the authors investigated the influence of coexistent water vapor, which is also contained in the off-gas, on the adsorption behavior of carbon dioxide.
著者
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Munakata Kenzo
Department Of Advanced Energy Engineering Science Interdisciplinary Graduate School Of Engineering S
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Koga Akinori
Department Of Advanced Energy Engineering Science Interdisciplinary Graduate School Of Engineering K
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KOGA Akinori
Department of Advanced Energy Engineering Science, Interdisciplinary Graduate School of Engineering Science, Kyushu University
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