Development of Pyro-processing Fuel Cycle Technology for Closing Actinide Cycle

Koyama, Tadafumi; Sakamura, Yoshiharu; Iizuka, Masatoshi; Kato, Tetsuya; Murakami, Teppei; Glatz, Jean‐Paul

doi:10.1016/j.proche.2012.10.117

Cited by 55 publications

(25 citation statements)

References 6 publications

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“…Lanthanide spectroscopy in high-temperature molten salt has also received a great deal of attention due to the research on the nuclear fuel cycle, including the recycling of spent nuclear fuels such as pyroprocessing (11,16,17). In pyroprocessing, the electrochemical techniques are most frequently applied for the investigation of chemical behaviors of lanthanides at high temperature.…”

Section: Lanthanide Spectroscopy In High-temperature Molten Salt Mediamentioning

confidence: 99%

Spectroscopic Studies of Lanthanides Ion in High-Temperature Molten Salt

Song

Yeon

2015

Applied Spectroscopy Reviews

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Spectroscopic studies for lanthanide elements in molten salt media performed using absorption, fluorescence, infrared, Raman, electron spin resonance spectroscopy (EPR), and M€ ossbaur spectroscopy were reviewed in an effort to understand the effect of structural change and chemical behavior of lanthanides on the temperature increase and the matrix change. The absorption spectroscopic studies revealed electronic energy levels of the transitions with the general structural information of the lanthanide elements, whereas the laser-induced fluorescence studies revealed more detailed information on lanthanide elements such as the lifetime behavior, structural changes, and hypersensitive transition. Infrared and Raman spectroscopy also provided structural details of molecule containing lanthanides, and the EPR and M€ ossbaur spectroscopy provided supporting information for the spontaneous reduction of trivalent lanthanides, such as Eu(III). The recent development of X-ray spectroscopy such as extended X-ray absorption fine structure (EXAFS) also provided detailed information for lanthanide halide in a molten salt medium. The characteristics of f-d as well as f-f transitions of the lanthanide elements were reviewed and the structural changes depending on the media, lanthanides element, and temperature were discussed in detail.

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Section: Lanthanide Spectroscopy In High-temperature Molten Salt Mediamentioning

confidence: 99%

Spectroscopic Studies of Lanthanides Ion in High-Temperature Molten Salt

Song

Yeon

2015

Applied Spectroscopy Reviews

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“…Since 2009, in Japan, CRIEPI in collaboration with JAEA has carried out engineering-scale pyroprocessing tests (Koyama et al, 2012). Using the results of the study, the feasibility and costs of the pyroprocessing fuel cycle technology at a 40 tHM/year throughput was evaluated using a technology readiness level approach.…”

Section: Scale-upmentioning

confidence: 99%

Key challenges in advanced reprocessing of spent nuclear fuels

Glatz

Souček

Malmbeck

2015

Reprocessing and Recycling of Spent Nuclear Fuel

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“…The reduction products of the OR process are transferred to an integrated process, electrorefining, as feed materials. U, Pu, and other actinides are recovered by the electrorefining process in a LiCl-KCl eutectic salt electrolyte at 500 ∘ C [19][20][21][22][23][24][25][26].…”

Section: Introductionmentioning

confidence: 99%

Quantitative Analysis of Oxygen Gas Exhausted from Anode through In Situ Measurement during Electrolytic Reduction

Choi

Lee

Heo

et al. 2017

Science and Technology of Nuclear Installations

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Quantitative analysis by in situ measurement of oxygen gas evolved from an anode was employed to monitor the progress of electrolytic reduction of simulated oxide fuel in a molten Li 2 O-LiCl salt. The electrolytic reduction of 0.6 kg of simulated oxide fuel was performed in 5 kg of 1.5 wt.% Li 2 O-LiCl molten salt at 650 ∘ C. Porous cylindrical pellets of simulated oxide fuel were used as the cathode by loading a stainless steel wire mesh cathode basket. A platinum plate was employed as the anode. The oxygen gas evolved from the anode was exhausted to the instrumentation for in situ measurement during electrolytic reduction. The instrumentation consisted of a mass flow controller, pump, wet gas meter, and oxygen gas sensor. The oxygen gas was successfully measured using the instrumentation in real time. The measured volume of the oxygen gas was comparable to the theoretically calculated volume generated by the charge applied to the simulated oxide fuel.

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Development of Pyro-processing Fuel Cycle Technology for Closing Actinide Cycle

Cited by 55 publications

References 6 publications

Spectroscopic Studies of Lanthanides Ion in High-Temperature Molten Salt

Spectroscopic Studies of Lanthanides Ion in High-Temperature Molten Salt

Key challenges in advanced reprocessing of spent nuclear fuels

Quantitative Analysis of Oxygen Gas Exhausted from Anode through In Situ Measurement during Electrolytic Reduction

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