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Development of energy-saving metal recycling technology from spent equipment in fusion DEMO reactors

Research Project

Project/Area Number 21H01071
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 14020:Nuclear fusion-related
Research InstitutionNational Institutes for Quantum Science and Technology

Principal Investigator

Kim Jaehwan  国立研究開発法人量子科学技術研究開発機構, 六ヶ所研究所 ブランケット研究開発部, 上席研究員 (80613611)

Co-Investigator(Kenkyū-buntansha) 中道 勝  国立研究開発法人量子科学技術研究開発機構, 六ヶ所研究所 ブランケット研究開発部, グループリーダー (60343927)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000)
Fiscal Year 2023: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2022: ¥6,760,000 (Direct Cost: ¥5,200,000、Indirect Cost: ¥1,560,000)
Fiscal Year 2021: ¥7,410,000 (Direct Cost: ¥5,700,000、Indirect Cost: ¥1,710,000)
Keywords増殖機能材料 / 核融合炉 / リサイクル / マイクロ波加熱 / チタン酸リチウム / ベリライド / 回収 / 表面化学反応 / 沈殿分離 / 核融合 / リサイクル技術 / 低温湿式精製技術 / Li2TiO3 / Be12Ti / 放射性廃棄物 / 溶解促進プロセス / 溶解挙動 / Li2TiO3微小球 / Be微小球
Outline of Research at the Start

本研究では、量研機構で新たに開発した、化学処理とマイクロ波加熱の複合化処理を用いた新たなリサイクル技術は、経済性と安全性を飛躍的に向上させた金属精製技術であり、当該技術を核融合原型炉からの有用金属リサイクル技術へと発展応用させることにより、資源の有効活用、そして、核融合原型炉の維持費低減を図ることが可能となる。また、同時に放射化物の分離除去を行うことにより、放射性廃棄物低減にも貢献することができる。このように本研究では、安全且つクリーンなエネルギー源としての核融合炉の早期実現に向けた一連のリサイクル技術の創成を目指す。

Outline of Final Research Achievements

The objective of this study is to develop a recycling technology for spent metal materials suitable for the design and material development of fusion DEMO reactors, based on the low-temperature Be refining technology by combining chemical treatment and microwave heating, and applying it to the recycling technology of major functional metals in fusion DEMO reactors. The effects of chemical solution type, microwave heating conditions, and external heating on the solubility of each material were examined, and the dissolution promotion mechanism was clarified. The separation, extraction, and precipitation mechanisms of various metals from the dissolved solutions were also be clarified. In addition, we examined the removal technology of impurities applied to the separation, extraction, and deposition methods, and aim to create a recycling technology that can reduce the amount of radioactive waste.

Academic Significance and Societal Importance of the Research Achievements

本課題では、核融合炉のブランケットに膨大な量が装荷されるチタン酸リチウム(Li2TiO3)とベリライド(Be12Ti)のリサイクル技術の創成を目指し、化学反応とマイクロ波加熱処理により、各々の材料における溶解メカニズムを解明し、高効率で回収可能であることを明らかにしたところが技術的意義である。また、非常に高価な原料に対し、約4年毎の交換時期であっても、多くの量が残ることから、リサイクル技術開発が不可欠であり、且つコストの適切化を図り、貴重な資源循環に期待できるところが社会的意義である。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • Research Products

    (25 results)

All 2024 2023 2022 2021

All Journal Article (10 results) (of which Peer Reviewed: 8 results,  Open Access: 2 results) Presentation (15 results) (of which Int'l Joint Research: 11 results,  Invited: 1 results)

  • [Journal Article] Helium swelling behavior for neutron multipliers after irradiation with He ions at high temperatures2024

    • Author(s)
      Sugimoto Yutaka、Miyamoto Mitsutaka、Kim Jae-Hwan、Hwang Taehyun、Nakamichi Masaru
    • Journal Title

      Nuclear Materials and Energy

      Volume: 38 Pages: 101584-101584

    • DOI

      10.1016/j.nme.2024.101584

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Current progress on fabrication processes of breeding functional materials for JA DEMO fusion applications2024

    • Author(s)
      Kim Jae-Hwan、Hwang Taehyun、Sugimoto Yutaka、Nakamichi Masaru
    • Journal Title

      Journal of Nuclear Materials

      Volume: 591 Pages: 154905-154905

    • DOI

      10.1016/j.jnucmat.2024.154905

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Deuterium retention properties of vanadium beryllide (Be12V) for advanced neutron multiplier applications2024

    • Author(s)
      Kim Jae-Hwan、Hwang Taehyun、Sugimoto Yutaka、Nakamichi Masaru、Miyamoto Mitsutaka
    • Journal Title

      Fusion Engineering and Design

      Volume: 201 Pages: 114278-114278

    • DOI

      10.1016/j.fusengdes.2024.114278

    • Related Report
      2023 Annual Research Report
  • [Journal Article] Compatibility of tritium breeders and neutron multipliers as a mixed-pebble packing concept for JA DEMO fusion reactor2023

    • Author(s)
      Kim Jae-Hwan、Hwang Taehyun、Sugimoto Yutaka、Akatsu Yoshiaki、Nakano Suguru、Nakamichi Masaru
    • Journal Title

      Fusion Engineering and Design

      Volume: 194 Pages: 113843-113843

    • DOI

      10.1016/j.fusengdes.2023.113843

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effect of the internal pressure of helium bubbles on the morphology and mobility of beryllium2023

    • Author(s)
      Sugimoto Yutaka、Hara Kazutomo、Haruta Mitsutaka、Kurata Hiroki、Kim Jae-Hwan、Hwang Taehyun、Nakamichi Masaru、Miyamoto Mitsutaka
    • Journal Title

      Fusion Engineering and Design

      Volume: 191 Pages: 113720-113720

    • DOI

      10.1016/j.fusengdes.2023.113720

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Measurement of thermal expansion anisotropy in Be12Ti and Be12V2023

    • Author(s)
      Mukai Keisuke、Kim Jae-Hwan、Nakamichi Masaru
    • Journal Title

      Nuclear Materials and Energy

      Volume: 36 Pages: 101473-101473

    • DOI

      10.1016/j.nme.2023.101473

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Overview of R&D activities on Neutron Multipliers in QST2023

    • Author(s)
      Jae-Hwan KIM, Taehyun Hwang, Yutaka Sugimoto, Suguru Nakano, Yoshiaki Akatsu, Masaru Nakamichi
    • Journal Title

      Proceeding of The 15th International Workshop on Beryllium Technology

      Volume: -

    • Related Report
      2022 Annual Research Report
  • [Journal Article] Dissolution and recovery of beryllium from beryl using a novel wet process with microwave heating2022

    • Author(s)
      Suguru Nakano, Jae-Hwan Kim, Taehyun Hwang, Ryuta Kasada, Masaru Nakamichi
    • Journal Title

      Nuclear Materials and Energy

      Volume: 30 Pages: 110113-110113

    • DOI

      10.1016/j.nme.2022.101113

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Reaction kinetics of lithium extraction and a recycling process for lithium meta-titanate pebbles2022

    • Author(s)
      Jae-Hwan Kim, Yoshiaki Akatsu, Taehyun Hwang, Yutaka Sugimoto, Suguru Nakano and Masaru Nakamichi
    • Journal Title

      Journal of Nuclear Science and Technology

      Volume: 60 Issue: 4 Pages: 394-400

    • DOI

      10.1080/00223131.2022.2113163

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A joining process between beryllium and reduced activation ferritic-martensitic steel by plasma sintering2021

    • Author(s)
      Jae-Hwan Kim, Taehyun Hwang, Masaru Nakamichi
    • Journal Title

      Materials

      Volume: 14 Issue: 21 Pages: 6348-6348

    • DOI

      10.3390/ma14216348

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] An innovative recycling process of breeding functional materials for fusion reactor2024

    • Author(s)
      Jae-Hwan Kim, Taehyun Hwang, Suguru Nakano, Yoshiaki Akatsu, Masaru Nakamichi
    • Organizer
      8th International Conference on Materials Engineering and Nano Sciences
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Current R&D Activities on the advanced breeding functional materials for fusion applications2023

    • Author(s)
      Jae-Hwan Kim, Taehyun Hwang, Suguru Nakano, Yoshiaki Akatsu, Masaru Nakamichi
    • Organizer
      International Conference on Processing &Manufacturing of Advanced Materials Processing, Fabrication, Properties, Applications,
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Recycling process of breeding functional materials for fusion applications2023

    • Author(s)
      Jae-Hwan Kim, Taehyun Hwang, Suguru Nakano, Yoshiaki Akatsu, Masaru Nakamichi
    • Organizer
      International Conference Mechanical, Industrial and Production Engineering 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Deuterium retention properties of advanced neutron multipliers2023

    • Author(s)
      Jae-Hwan Kim, Taehyun Hwang, Yutaka Sugimoto, Mitsutaka Miyamoto, Masaru Nakamichi
    • Organizer
      15th International Symposium on Fusion Nuclear Technology
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Present Status of Advanced Breeding Functional Materials (QST activities)2023

    • Author(s)
      Jae-Hwan Kim, Taehyun Hwang, Yutaka Sugimoto, Suguru Nakano, Yoshiaki Akatsu, Shota Yokohama, Masaru Nakamichi
    • Organizer
      The 16th International Workshop on Beryllium Technology
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Current Status of R&Ds on Advanced Breeding Functional Materials for JA DEMO activities2023

    • Author(s)
      Jae-Hwan Kim, Taehyun Hwang, Yutaka Sugimoto, Suguru Nakano, Yoshiaki Akatsu, Shota Yokohama, Masaru Nakamichi, and all collaborators
    • Organizer
      21st International Conference on Fusion Reactor Materials (ICFRM-21)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] An innovative recycling process of breeding functional materials for fusion application2022

    • Author(s)
      Jae-Hwan Kim, Taehyun Hwang, Suguru Nakano, Yoshiaki Akatsu, Masaru Nakamichi
    • Organizer
      32th Symposium of Fusion Technogloy
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Compatibility of tritium breeders and neutron multipliers as a mixture-packing concept of pebble bed blanket for JA DEMO fusion reactor2022

    • Author(s)
      Jae-Hwan Kim, Taehyun Hwang, Suguru Nakano, Yoshiaki Akatsu, Masaru Nakamichi
    • Organizer
      32th Symposium of Fusion Technogloy
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Evaluation of dissolution reaction behavior of hard-to-dissolve beryllium ore by microwave heating2022

    • Author(s)
      Suguru Nakano, Jae-Hwan Kim, TaeHyun Hwang, Yutaka Sugimoto, Ryuta Kasada, Masaru Nakamichi
    • Organizer
      32th Symposium of Fusion Technogloy
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 核融合原型炉における使用済機器からの省エネ金属リサイクル技術の創成2022

    • Author(s)
      金 宰煥,赤津 孔明,黄 泰現,中野 優,杉本 有隆,中道 勝
    • Organizer
      2022年原子力学会秋の大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] マイクロ波加熱と化学処理を用いた革新的精製技術による核融合炉用増殖機能材料のリサイクル技術2022

    • Author(s)
      金 宰煥,黄 泰現,中野 優,杉本 有隆,赤津 孔明,中道 勝
    • Organizer
      第14回核融合エネルギー連合講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Overview of R&D activities on Neutron Multipliers in QST2022

    • Author(s)
      Jae-Hwan KIM, Taehyun Hwang, Yutaka Sugimoto, Suguru Nakano, Yoshiaki Akatsu, Masaru Nakamichi
    • Organizer
      The 15th International Workshop on Beryllium Technology
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Current R&Ds on recycling technologies of breeding functional materials for fusion reactors2022

    • Author(s)
      Jae-Hwan KIM, Yoshiaki Akatsu, Taehyun Hwang, Yutaka Sugimoto, Suguru Nakano, Masaru Nakamichi
    • Organizer
      International Congress on Advanced Materials Sciences and Engineering
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 増殖機能材料リサイクル技術への適用検討2021

    • Author(s)
      赤津 孔明、金宰煥、中野 優, 黄 泰現、中道 勝
    • Organizer
      日本原子力学会2021年秋の大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] ベリリウムと構造材の異材接合特性及びリサイクル技術の検討2021

    • Author(s)
      金宰煥、黄 泰現、赤津 孔明、中野 優、中道 勝
    • Organizer
      日本原子力学会2022年春の大会
    • Related Report
      2021 Annual Research Report

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Published: 2021-04-28   Modified: 2025-01-30  

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