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http://dx.doi.org/10.9713/kcer.2018.56.2.169

Process Suggestion and HAZOP Analysis for CQ4 and Q2O in Nuclear Fusion Exhaust Gas  

Jung, Woo-Chan (Daesung Cryogenic Research Institute, Daesung Industrial Gases Co., Ltd.)
Jung, Pil-Kap (Daesung Cryogenic Research Institute, Daesung Industrial Gases Co., Ltd.)
Kim, Joung-Won (Daesung Cryogenic Research Institute, Daesung Industrial Gases Co., Ltd.)
Moon, Hung-Man (Daesung Cryogenic Research Institute, Daesung Industrial Gases Co., Ltd.)
Chang, Min-Ho (National Fusion Research Institute)
Yun, Sei-Hun (National Fusion Research Institute)
Woo, In-Sung (Department of Safety Engineering, Incheon National University)
Publication Information
Korean Chemical Engineering Research / v.56, no.2, 2018 , pp. 169-175 More about this Journal
Abstract
This study deals with a process for the recovery of hydrogen isotopes from methane ($CQ_4$) and water ($Q_2O$) containing tritium in the nuclear fusion exhaust gas (Q is Hydrogen, Deuterium, Tritium). Steam Methane Reforming and Water Gas Shift reactions are used to convert $CQ_4$ and $Q_2O$ to $Q_2$ and the produced $Q_2$ is recovered by the subsequent Pd membrane. In this study, one circulation loop consisting of catalytic reactor, Pd membrane, and circulation pump was applied to recover H components from $CH_4$ and $H_2O$, one of $CQ_4$ and $Q_2O$. The conversion of $CH_4$ and $H_2O$ was measured by varying the catalytic reaction temperature and the circulating flow rate. $CH_4$ conversion was 99% or more at the catalytic reaction temperature of $650^{\circ}C$ and the circulating flow rate of 2.0 L/min. $H_2O$ conversion was 96% or more at the catalytic reaction temperature of $375^{\circ}C$ and the circulating flow rate of 1.8 L/min. In addition, the amount of $CQ_4$ generated by Korean Demonstration Fusion Power Plant (K-DEMO) in the future was predicted. Then, the treatment process for the $CQ_4$ was proposed and HAZOP (hazard and operability) analysis was conducted to identify the risk factors and operation problems of the process.
Keywords
Fusion; Hydrogen Isotopes; Steam Methane Reforming; Water Gas Shift; Pd membrane; K-DEMO; HAZOP;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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