The Recovery of Carbon-14 from the Graphite Moderator of a Dismantled Gas-Cooled Reactor through Plasma Chemical Reactions in CO Glow Discharge
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概要
- 論文の詳細を見る
The application of the carbon isotope separation method using plasma chemical reactions in carbon monoxide plasma for the recovery of 14C from the graphite moderator of a dismantled Japanese gas-cooled reactor, Tokai Power Station, was evaluated numerically. The 14C separation factor of 4.6 in one unit stage was estimated through the numerical simulation of a kinetic model in CO plasma. The calculated results show that the 14C concentration in the cascade tail flow can be reduced to the environmental standard recommended by the International Commission on Radiological Protection (3 Bq/cm3) and to the natural abundance level (1.3×10−4 Bq/cm3) in 3 and 16 stages in the stripping section, respectively, and the amount of 14C-enriched CO flow can be reduced to 1/103 and 1/106 of the feed CO amount in 9 and 19 stages in the enriching section, respectively. In the case of 3-stage processing in the stripping section and 9-stage processing in the enriching section, it is estimated that the total energy consumption by the plasma generator would be about 15 kW and the maximum inner diameter of the plasma reactor in the cascade would have to be about 60 cm.
- 社団法人 日本原子力学会の論文
- 2006-04-25
著者
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鈴木 正昭
東京工業大学原子炉工学研究所
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MORI Shinsuke
Department of Chemical Engineering, Tokyo Institute of Technology
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SUZUKI Masaaki
Department of Chemical Engineering, Tokyo Institute of Technology
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鈴木 正昭
東京工業大学大学院理工学研究科化学工学専攻
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SAKURAI Mikiya
Department of Chemical Engineering, Tokyo Institute of Technology
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Shinsuke Mori
Department Of Chemical Engineering Tokyo Institute Of Technology
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Sakurai Mikiya
Department Of Chemical Engineering Tokyo Institute Of Technology
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Suzuki Masaaki
Department Of Atherosclerosis Metabolism And Clinical Nutrition National Cardiovascular Center
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Mori Shinsuke
Department Of Chemical Engineering Graduate School Of Science And Engineering Tokyo Institute Of Tec
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