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Development and elucidation for ammonia combustion catalysts based on mullite-type materials

Research Project

Project/Area Number 18K14326
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 36020:Energy-related chemistry
Research InstitutionNational Institute of Advanced Industrial Science and Technology (2019-2021)
Kumamoto University (2018)

Principal Investigator

Hinokuma Satoshi  国立研究開発法人産業技術総合研究所, 材料・化学領域, 主任研究員 (70714012)

Project Period (FY) 2018-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2019: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2018: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywordsアンモニア / 燃焼触媒 / ムライト / 窒素酸化物 / 耐熱性 / 酸化銅 / 酸化アルミニウム / 白金
Outline of Final Research Achievements

The catalytic NH3 combustion properties and local structures of copper oxides (CuOx) supported on mullite-type materials were studied. Among the CuOx supported on various metal oxide materials, CuOx/mullite-type materials exhibited high catalytic NH3 combustion activity, highest N2 (lowest N2O and NO) selectivity and high thermal stability. Because the combustion activity is closely associated with the reducibility and dispersion of CuOx, highly dispersed CuOx nanoparticles on supports are considered to play a key role in the low temperature light-off of NH3. For NO and N2O selectivities, the oxidation state of CuOx and the dissociative species of adsorbed NH3 are suggested to be important catalytic combustion properties, respectively. On the basis of these discussions, the reaction mechanism of catalytic NH3 combustion over CuOx/mullite-type materials is described.

Academic Significance and Societal Importance of the Research Achievements

『NH3の低温燃焼』と『N2O/NOxの生成抑制』に有効なムライト型結晶構造体を基軸とする新規燃焼触媒を開発した。NH3は石油代替燃料として注目されているが、本研究のような触媒燃焼プロセスに適用する研究は他にない。関連する研究として、火炎燃焼によるガスタービンへの応用が国内で進められている。直面している課題は、燃焼性を改善するために化石燃料を使用していること、NH3燃焼によってFuel, ThermalおよびPrompt NOxを生成していることである。ガスタービンの燃焼効率を最大限に高めるためには、NH3を熱力学的に安定なN2とH2Oまで燃焼させることに寄与する研究成果になる。

Report

(5 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (13 results)

All 2021 2020 2019 2018

All Journal Article (4 results) (of which Peer Reviewed: 3 results,  Open Access: 1 results) Presentation (7 results) (of which Int'l Joint Research: 3 results,  Invited: 2 results) Book (1 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] Ammonia Combustion Catalysts2021

    • Author(s)
      Hinokuma Satoshi、Sato Kazuhiko
    • Journal Title

      Chemistry Letters

      Volume: 50 Issue: 4 Pages: 752-759

    • DOI

      10.1246/cl.200843

    • NAID

      130008025772

    • Related Report
      2020 Research-status Report
  • [Journal Article] Ammonia Combustion Properties of Copper Oxides-based Honeycomb and Granular Catalysts2020

    • Author(s)
      HINOKUMA Satoshi、IWASA Takeshi、ARAKI Kento、KAWABATA Yusuke、MATSUKI Shun、SATO Tetsuya、KON Yoshihiro、TAKETSUGU Tetsuya、SATO Kazuhiko、MACHIDA Masato
    • Journal Title

      Journal of the Japan Petroleum Institute

      Volume: 63 Issue: 5 Pages: 274-281

    • DOI

      10.1627/jpi.63.274

    • NAID

      130007895041

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Ammonia-rich combustion and ammonia combustive decomposition properties of various supported catalysts2019

    • Author(s)
      S. Hinokuma, K. Araki, T. Iwasa, S. Kiritoshi, Y. Kawabata, T. Taketsugu, and M. Machida
    • Journal Title

      Catalysis Communications

      Volume: 123 Pages: 64-68

    • DOI

      10.1016/j.catcom.2019.02.005

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Supported binary CuOx catalysts with high activity and thermal stability for the combustion of NH3 as a carbon-free energy source2018

    • Author(s)
      S. Kiritoshi, T. Iwasa, K. Araki, Y. Kawabata, T. Taketsugu, S. Hinokuma, and M. Machida
    • Journal Title

      RSC Advances

      Volume: 8 Issue: 72 Pages: 41491-41498

    • DOI

      10.1039/c8ra07969b

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 固体触媒を用いるアンモニアの選択的酸化反応2019

    • Author(s)
      佐藤 一彦、日隈 聡士
    • Organizer
      独立行政法人日本学術振興会 創造機能化学第116委員会 「第1・第2・第3合同分科会」(6月期)
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] ゼロエミッションを志向したアンモニア燃焼触媒の開発2019

    • Author(s)
      日隈 聡士
    • Organizer
      第2回日本表面真空学会若手部会研究会
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] 耐熱性アンモニア燃焼触媒の合成と反応特性解明2019

    • Author(s)
      日隈 聡士、今 喜裕、浅川 真澄、佐藤 一彦
    • Organizer
      第49回石油・石油化学討論会
    • Related Report
      2019 Research-status Report
  • [Presentation] 担持触媒のアンモニアリッチ条件の燃焼反応特性2019

    • Author(s)
      日隈 聡士、今 喜裕、佐藤 一彦
    • Organizer
      第57回燃焼シンポジウム
    • Related Report
      2019 Research-status Report
  • [Presentation] Catalytic NH3 Combustion Properties of CuOx/3Al2O3・2SiO22018

    • Author(s)
      Satoshi Hinokuma, Saaya Kiritoshi, Yusuke Kawabata, Kento Araki, Masato Machida
    • Organizer
      The 8th Tokyo Conference on Advanced Catalytic Science and Technology (TOCAT8)
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Catalytic NH3 Combustion over CuOx/3Al2O3・2SiO22018

    • Author(s)
      Saaya Kiritoshi, Kento Araki, Satoshi Hinokuma, Masato Machida
    • Organizer
      2018 ENGINEERING WORKSHOP in Kumamoto
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] NH3 Combustive Decomposition over Various Supported Catalysts2018

    • Author(s)
      Kento Araki, Saaya Kiritoshi, Satoshi Hinokuma, Masato Machida
    • Organizer
      2018 ENGINEERING WORKSHOP in Kumamoto
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Book] 日本セラミックス協会誌2020年4月号2020

    • Author(s)
      アンモニアによるエネルギー分野への新たな展開
    • Total Pages
      120
    • Publisher
      日本セラミックス協会
    • Related Report
      2019 Research-status Report
  • [Patent(Industrial Property Rights)] アンモニアの燃焼方法及び水素製造方法2018

    • Inventor(s)
      日隈 聡士, 荒木 健人, 町田 正人
    • Industrial Property Rights Holder
      日隈 聡士, 荒木 健人, 町田 正人
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2018-127145
    • Filing Date
      2018
    • Related Report
      2018 Research-status Report

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Published: 2018-04-23   Modified: 2023-01-30  

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