Oral presentation

[2H13-16] Severe Accident at Reprocessing Plant

Thu. Mar 18, 2021 4:15 PM - 5:30 PM Room H (Zoom room 8)

Chair: Takehiko Tsukahara (Tokyo Tech)

4:15 PM - 4:30 PM

[2H13] Enhancement of Analysis Method for Important Phenomena of Severe Accident at Reprocessing Plant

(4)Development of Validation Matrix of FATE Code for HALW Boiling and Drying Accident

*Daisuke Fujiwara¹, Hisayuki Kyo¹, Hiroshi Shirai¹, Takashi Kodama², Yoshikazu Tamauchi², Hiroshi Kinuhata², Mikio Kumagai³ (1. TEPSYS, 2. JNFL, 3. UI Sciences)

4:30 PM - 4:45 PM

[2H14] Enhancement of Analysis Method for Important Phenomena of Severe Accident at Reprocessing Plant

(5)Validation of Models for Heat-transfer and Fluid Dynamics built in FATE Code

*Hisayuki Kyo¹, Daisuke Fujiwara¹, Hiroshi Shirai¹, Takashi Kodama², Yoshikazu Tamauchi², Hiroshi Kinuhata² (1. TEPSYS, 2. JNFL)

4:45 PM - 5:00 PM

[2H15] Enhancement of Analysis Method for Important Phenomenon of Severe Accidents at Reprocessing Plant

(6)Computational cost reduction of hydrogen explosion simulation by Artificial Thickening Flame Method

*Nobuyuki Tsuboi¹, Yoshikazu Tamauchi², Takashi Kodama², A. Koichi Hayashi³ (1. Kyushu Institute of Technology, 2. Japan Nuclear Fuel Limited, 3. Aoyama Gakuin University)

5:00 PM - 5:15 PM

[2H16] Enhancement of Analysis Method for Important Phenomenon of Severe accidents at Reprocessing Plant

(7)A structured adaptive mesh refinement methodology under generalized curvilinear coordinates to deal with non-Cartesian system for analysis of severe accidents

*A. Koichi Hayashi¹, Xinmeng Tang², Yoshikazu Tamauchi³, Takashi Kodama³, Nobuyuki Tsuboi⁴ (1. Aoyama Gakuin University, 2. Sophia Univ., 3. JFNL, 4. Kyushu Institute of Technology)

Time reserved for Chair （5:15 PM - 5:30 PM）

Oral presentation

[3H01-04] MA recovery 1

Fri. Mar 19, 2021 9:30 AM - 10:45 AM Room H (Zoom room 8)

Chair: Koichi Uozumi (CRIEPI)

9:30 AM - 9:45 AM

[3H01] Hybrid Process Combining Solvent Extraction and Low Pressure Loss Extraction Chromatography for a Reasonable MA Recovery

(1)Overview of R&D Program

*Yuichi Sano¹, Tsuyoshi Arai², Kiyoharu Nakatani³, Haruaki Matsuura⁴, Shigeru Kunii⁵ (1. JAEA, 2. Shibaura Inst. of Tech., 3. Univ. of Tsukuba, 4. TCU, 5. Chemicrea Inc.)

9:45 AM - 10:00 AM

[3H02] Hybrid Process Combining Solvent Extraction and Low Pressure Loss Extraction Chromatography for a Reasonable MA Recovery

(2)Extraction behavior of FPs and MA(III) at high concentration of TBP

*Tatsuya Emori¹, Keisuke Morita¹, Yasutoshi Ban¹, Hiromori Sato², Fukuka Kida², Tsuyoshi Arai², Yuichi Sano¹ (1. JAEA, 2. Shibaura Inst. of Tech.)

10:00 AM - 10:15 AM

[3H03] Hybrid Process Combining Solvent Extraction and Low Pressure Loss Extraction Chromatography for a Reasonable MA Recovery

(3)Kinetic analysis of extraction/back extraction at high concentration of TBP by microspectroscopy

*Yuka Kusano¹, Akihisa Miyagawa¹, Shigenori Nagatomo¹, Kiyoharu Nakatani¹, Yuichi Sano² (1. Univ. of Tsukuba, 2. JAEA)

10:15 AM - 10:30 AM

[3H04] Hybrid Process Combining Solvent Extraction and Low Pressure Loss Extraction Chromatography for a Reasonable MA Recovery

(4)Flowsheet construction for MA&Ln recovery by the centrifugal contactor

*Atsushi Sakamoto¹, Yuichi Sano¹, Masayuki Takeuchi¹, Nobuo Okamura¹, Masayuki Watanabe¹ (1. JAEA)

Time reserved for Chair （10:30 AM - 10:45 AM）

Oral presentation

[3H05-08] MA recovery 2

Fri. Mar 19, 2021 10:45 AM - 12:00 PM Room H (Zoom room 8)

Chair: Hirokazu Hayashi (JAEA)

10:45 AM - 11:00 AM

[3H05] Hybrid Process Combining Solvent Extraction and Low Pressure Loss Extraction Chromatography for a Reasonable MA Recovery

(5)Granulation of Porous Silica Particle for Extraction Chromatography Adsorbent by Freeze Drying

*Kenta Hasegawa¹, Yasunori Miyazaki¹, Hiromu Ambai¹, Yuichi Sano¹, Nobuo Okamura¹, Masayuki Watanabe¹ (1. JAEA)

11:00 AM - 11:15 AM

[3H06] Hybrid Process Combining Solvent Extraction and Low Pressure Loss Extraction Chromatography for a Reasonable MA Recovery

(6)Evaluation of adsorption and elution behavior of adsorbent for MA / Ln separation

*Masaaki Yoshida¹, Shuhei Nemoto¹, Midori Nagase¹, Tsuyoshi Arai¹, Tatsuya Emori², Keisuke Morita², Yasutoshi Ban², Sou Watanabe², Yuichi Sano², Shigeru Kunii³ (1. Shibaura Inst. of Tech., 2. JAEA, 3. Chemicrea Inc. )

11:15 AM - 11:30 AM

[3H07] Hybrid Process Combining Solvent Extraction and Low Pressure Loss Extraction Chromatography for a Reasonable MA Recovery

(7)Structural Analyses of Adsorbed Species in the Adsorbents for MA/Ln Separation

Tatsumi Tsuchiya¹, Makoto Okada¹, *Sou Watanabe², Yuichi Sano², Tsuyoshi Arai³, Haruaki Matsuura¹ (1. TCU, 2. JAEA, 3. Shibaura Inst. of Tech.)

11:30 AM - 11:45 AM

[3H08] Hybrid Process Combining Solvent Extraction and Low Pressure Loss Extraction Chromatography for a Reasonable MA Recovery

(8)Evaluation of adsorption and elution rates using adsorbent for MA/Ln separation by microspectroscopy

*Yoshiaki Kuzure¹, Akihisa Miyagawa¹, Shigenori Nagatomo¹, Kiyoharu Nakatani¹, Masaaki Yoshida², Shuhei Nemoto², Tsuyoshi Arai², Hiromu Ambai³, Kenta Hasegawa³, Yuichi Sano³ (1. Univ. of Tsukuba, 2. Shibaura Inst. of Tech., 3. JAEA)

Time reserved for Chair （11:45 AM - 12:00 PM）

Oral presentation

[3H09-10] Hydrogen explosion accident at reprocessing plant

Fri. Mar 19, 2021 2:45 PM - 3:30 PM Room H (Zoom room 8)

Chair: Daisuke Fujiwara (TEPSYS)

2:45 PM - 3:00 PM

[3H09] Experiment on airborne release fraction in hydrogen explosion accident at Reprocessing plant

(10)The results and subjects obtained from the former experiments

*Naoya SATOU¹, Yoshikazu TAMAUCHI¹, Hiroshi KINUHATA¹, Takashi KODAMA¹, Keita SAITO², Takahiro CHIKAZAWA² (1. JFNL, 2. MMC)

3:00 PM - 3:15 PM

[3H10] Experiment on airborne release fraction in hydrogen explosion accident at Reprocessing plant

(11)Hydrogen explosion experiment in small vessel part2

*KEITA SAITO¹, Takahiro CHIKAZAWA¹, Yoshikazu TAMAUCHI², Takashi KODAMA² (1. MMC, 2. JFNL )

Time reserved for Chair （3:15 PM - 3:30 PM）

Oral presentation

[3H11-15] Reprocessing technology

Fri. Mar 19, 2021 3:30 PM - 5:00 PM Room H (Zoom room 8)

Chair: Yuichi Sano (JAEA)

3:30 PM - 3:45 PM

[3H11] Development of co-decontamination section on co-processing process

Study on extraction behavior of Tc coexistent with Zr to improve decontamination performance

*Shimpei Ohno¹, Yoshiaki Ichige¹, atsuhiro Shibata¹, Takehiko Sato¹, Masayuki Takeuchi¹ (1. JAEA)

3:45 PM - 4:00 PM

[3H12] Extraction of Ce(Ⅳ) in HNO₃ with imidazolium-type ionic liquids and fluorous solvent

*Masaru Yokouchi¹, Ryoma Sunakawa¹, Takaya Yamaguchi¹, Toshiyuki Inazu¹, Noriko Asanuma¹ (1. Tokai University)

4:00 PM - 4:15 PM

[3H13] R&D on Nitride Fuel Cycle for MA Transmutation to Enhance Safety and Economy

(20)Preparation of Np-Pd alloy and the reaction of Np-Pd alloy with CdCl₂

*Hirokazu Hayashi¹, Hiroki Shibata¹, Haruyoshi Otobe¹ (1. JAEA)

4:15 PM - 4:30 PM

[3H14] Development of spent salt treatment technology using zeolite

(7)Zeolite column experiments using simulating spent salt containing various kinds of FP elements

*Koichi Uozumi¹, Kazuto Takayama², Kenta Inagaki¹ (1. CRIEPI, 2. UTokyo)

4:30 PM - 4:45 PM

[3H15] Pyro-reprocessing of Molten Salt Reactor Fuel

*Taizo Shibuya¹, Ritsuo Yoshioka², Uhlir Jan³, Masaaki Furukawa¹ (1. Thorium Tech Solution Inc., 2. International Thorium Molten-Salt Forum, 3. Centrum Výzkumu Řež)

Time reserved for Chair （4:45 PM - 5:00 PM）

Sessions

V. Nuclear Fuel Cycle and Nuclear Materials » 504-3 Fuel Reprocessing

[2H13-16] Severe Accident at Reprocessing Plant

(4)Development of Validation Matrix of FATE Code for HALW Boiling and Drying Accident

(5)Validation of Models for Heat-transfer and Fluid Dynamics built in FATE Code

(6)Computational cost reduction of hydrogen explosion simulation by Artificial Thickening Flame Method

(7)A structured adaptive mesh refinement methodology under generalized curvilinear coordinates to deal with non-Cartesian system for analysis of severe accidents

[3H01-04] MA recovery 1

(1)Overview of R&D Program

(2)Extraction behavior of FPs and MA(III) at high concentration of TBP

(3)Kinetic analysis of extraction/back extraction at high concentration of TBP by microspectroscopy

(4)Flowsheet construction for MA&Ln recovery by the centrifugal contactor

[3H05-08] MA recovery 2

(5)Granulation of Porous Silica Particle for Extraction Chromatography Adsorbent by Freeze Drying

(6)Evaluation of adsorption and elution behavior of adsorbent for MA / Ln separation

(7)Structural Analyses of Adsorbed Species in the Adsorbents for MA/Ln Separation

(8)Evaluation of adsorption and elution rates using adsorbent for MA/Ln separation by microspectroscopy

[3H09-10] Hydrogen explosion accident at reprocessing plant

(10)The results and subjects obtained from the former experiments

(11)Hydrogen explosion experiment in small vessel part2

[3H11-15] Reprocessing technology

Study on extraction behavior of Tc coexistent with Zr to improve decontamination performance

(20)Preparation of Np-Pd alloy and the reaction of Np-Pd alloy with CdCl2

(7)Zeolite column experiments using simulating spent salt containing various kinds of FP elements

Authentication

(20)Preparation of Np-Pd alloy and the reaction of Np-Pd alloy with CdCl₂