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Pd has a large isotope effect in the amount or rate of hydrogen absorption. Hydrogen isotope separation is carried out using a bed packed with palladium particles. In the present study, systems compos...ed of one, two, three or four columns are investigated in order to attain high separation performance. Especially, deuterium of low concentration is efficiently separated by the 4-column simulated moving-bed system. When the gas mixtures are passed through sixteen columns the maximum deuterium atomic molar fraction is 0.728 for the H$_2$ (0.990)-D$_2$ (0.00996) mixture feed. Therefore it was found that the industrial separation of deuterium from natural hydrogen is possible by the present system.続きを見る
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