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Development of atmospheric carbon dioxide fixation process using biomethane direct reforming

Research Project

Project/Area Number 20K05218
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 27030:Catalyst and resource chemical process-related
Research InstitutionKitami Institute of Technology

Principal Investigator

Okazaki Noriyasu  北見工業大学, 工学部, 准教授 (10213927)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2022: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2021: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2020: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywordsメタン直接改質 / バイオメタン / 二酸化炭素共存 / 水素製造 / ナノカーボン製造 / 二酸化炭素固定化 / 酸化鉄 / 酸化ニッケル / ナノカーボン / ナノカーボン直径 / ニッケル / アルミナ / ターコイズ水素 / 二酸化炭素削減 / クリーン水素
Outline of Research at the Start

現在,大気中の二酸化炭素低減には大規模発生源を対象とする濃縮・貯留,還元資源化等が主流であるが,大気中の希薄なCO2を固定化する技術開発は進んでいない.一方,バイオマスを燃焼した場合はカーボンニュートラルが成り立つ.それゆえバイオメタンを利用したメタン直接改質は,CO2を排出せずに水素製造が可能であるため,大気中の希薄なCO2を固定化する事が出来る先進的な技術と言える.本研究では,バイオメタン中の不純物に耐性のあるメタン直接改質触媒・反応器,水素の分離法,反応後にメタン分解炭素中に分散した触媒の処理・利用法等を新たに開発し,研究期間内に実証プラント用の基礎技術を確立する.

Outline of Final Research Achievements

The direct methane reforming reaction did not show any activity in the presence of carbon dioxide. However, the presence of carbon dioxide in biomethane at a certain ratio is disadvantageous for the direct methane reforming reaction. As a result of devising the activation of the catalyst, it became possible for the iron-based catalyst to exhibit activity up to a carbon dioxide concentration of 10%. This means that it is possible to use gas from which carbon dioxide has been separated by membrane separation or the like.
On the other hand, the nickel-based catalyst was active up to 40% carbon dioxide concentration, which means that biomethane can be used directly. In addition, it was found that carbon dioxide can be fixed by methanating carbon dioxide with hydrogen using the same catalyst and then performing a continuous direct methane reforming reaction.

Academic Significance and Societal Importance of the Research Achievements

現在,大気中の二酸化炭素(CO2)低減には大規模発生源を対象とする濃縮・貯留,還元資源化等が主流であるが,大気中の希薄なCO2の固定化は難しい.一方,バイオマスを燃焼した場合はカーボンニュートラルが成り立つ.それゆえバイオメタンを利用したメタン直接改質(DMR)は,CO2を排出せずに水素製造できるため,大気中の希薄なCO2を固定化する事が出来る先進的な技術と言える.本成果は,触媒の活性化を工夫することにより,CO2共存下でもDMR活性を示すこと,更にはバイオメタンを直接DMRに使用できる事を見出した.そして高濃度のCO2は一度メタン化した後,連続してDMRにて固定化できることを実証した.

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (13 results)

All 2022 2021

All Presentation (13 results) (of which Int'l Joint Research: 7 results)

  • [Presentation] Direct Methane Reforming -Study of preparation method of Fe2O3/Al2O3 catalyst2022

    • Author(s)
      Koichiro Iwama, Noriyasu Okazaki
    • Organizer
      The 9th Tokyo Conference on Advanced Catalytic Science and Technology
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Methane direct reforming reaction using biomethane2022

    • Author(s)
      Sho Fukushima, Noriyasu Okazaki
    • Organizer
      The 9th Tokyo Conference on Advanced Catalytic Science and Technology
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Direct methane reforming -Effect of coexisting H2O and CO2-2022

    • Author(s)
      Rei Sato, Koichiro Iwama, and Noriyasu Okazaki
    • Organizer
      The 9th Tokyo Conference on Advanced Catalytic Science and Technology
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Direct Methane reforming reaction using biomethane2022

    • Author(s)
      Sho Fukushima, Koichiro Iwama, Noriyasu Okazaki
    • Organizer
      12th International Conference on Environmental Catalysis
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Direct methane reforming -Effect of coexisting H2O and CO2-2022

    • Author(s)
      Rei Satoh, Koichiro Iwama, Noriyasu Okazaki
    • Organizer
      12th International Conference on Environmental Catalysis
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Direct Methane Reforming -Preparation of Fe2O3/Al2O3 catalysts-2022

    • Author(s)
      Koichiro Iwama, Noriyasu Okazaki
    • Organizer
      12th International Conference on Environmental Catalysis
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Direct methane reforming reaction -Alumina addition effect in iron oxide catalyst-2022

    • Author(s)
      Yohei Sakurai, Noriyasu Okazaki
    • Organizer
      12th International Conference on Environmental Catalysis
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] メタン直接改質反応ー酸化鉄触媒におけるアルミナ添加効果ー2022

    • Author(s)
      櫻井陽平、岩間廣一朗、岡﨑文保
    • Organizer
      石油学会長野大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] メタン直接改質反応 - バイオメタンの利用-2022

    • Author(s)
      福島渚生、岩間廣一朗、岡﨑文保
    • Organizer
      石油学会長野大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] メタン直接改質反応 -共存ガスの影響-2022

    • Author(s)
      佐藤 黎、岩間廣一朗、岡﨑文保
    • Organizer
      石油学会長野大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] メタン直接改質反応 ー酸化鉄触媒における助触媒効果ー2021

    • Author(s)
      平山竜之介、玉井成香、岡﨑文保
    • Organizer
      化学系学協会北海道2021年冬季研究発表会
    • Related Report
      2020 Research-status Report
  • [Presentation] メタン直接改質反応 ー酸化鉄触媒調製法の検討ー2021

    • Author(s)
      岩間廣一朗、玉井成香、岡﨑文保
    • Organizer
      化学系学協会北海道2021年冬季研究発表会
    • Related Report
      2020 Research-status Report
  • [Presentation] メタン直接改質反応 ー酸化鉄系触媒の最適化ー2021

    • Author(s)
      目黒 巧、玉井成香、岡﨑文保
    • Organizer
      化学系学協会北海道2021年冬季研究発表会
    • Related Report
      2020 Research-status Report

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Published: 2020-04-28   Modified: 2024-01-30  

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