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Direct decomposition of lignocellulose by mechanocatalysis

Research Project

Project/Area Number 21K18853
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 27:Chemical engineering and related fields
Research InstitutionKyushu University

Principal Investigator

Takagaki Atsushi  九州大学, 工学研究院, 准教授 (30456157)

Project Period (FY) 2021-07-09 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2022: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2021: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Keywordsバイオマス / ギ酸 / 二糖類 / 固体塩基 / メカノケミカル反応 / 固体触媒 / 酸塩基触媒 / メカノキャタリシス
Outline of Research at the Start

木質系バイオマスの小規模集約で可能なプロセスで、種々のバイオマスにも対応できるシステムとして、メカノケミカル反応と固体触媒の組み合わせによる、木質系バイオマスから単糖、ギ酸を一括合成するグリーンプロセスの構築を目指す。メカノケミカル反応は、近年様々な分野で注目されているが、反応機構は未だ解明されていないことが多い。本研究では活性と触媒構造、機械的応力との相関を検討し、従来の熱反応との差異を明らかにする。

Outline of Final Research Achievements

A nearly full glucose conversion with 45% formic acid yield were obtained over calcium oxide catalyst using hydrogen peroxide as an oxidant. The activity was highly dependent on the basicity of solid oxides, and the kinetic analysis revealed the contribution of C-C bond cleavage by the retroaldol reaction catalyzed by the base and the reaction mechanism of carboxylic acid formation by the oxidation reaction. The yield of formic acid from cellobiose (disaccharide) using a solid base was low as isomerization of the disaccharide occurred preferentially and hydrolysis did not proceed well. It was found that two steps are effective for the production of formic acid from polysaccharides: the cleavage of glycosidic linkages by acid followed by the formation of formic acid by base.

Academic Significance and Societal Importance of the Research Achievements

本研究は、木質系バイオマスから有用化合物としてギ酸を生成するための反応および触媒の開発に関するものである。安価な酸化カルシウムを用いて、単糖からギ酸を良好な収率であることが明らかになった。一方で、多糖類から直接ギ酸を得ようとすると、酸化カルシウムのような固体塩基触媒単独では困難であることがわかった。これまで、液体酸や固体酸を用いたセルロースなどの多糖類からの加水分解反応は我々も含めて精力的に研究がなされており、固体酸と固体塩基の組み合わせによって多糖類からギ酸への合成が可能であることを示した。

Report

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

    (7 results)

All 2022 2021

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

  • [Journal Article] Mixing nitrogen-containing compounds for synthesis of porous boron nitride for improved porosity, surface functionality, and solid base catalytic activity2022

    • Author(s)
      Takagaki Atsushi、Nakamura Shohei、Ashimura Shu、Yoshida Masaaki、Song Jun Tae、Watanabe Motonori、Hayashi Shigenobu、Ishihara Tatsumi
    • Journal Title

      Applied Catalysis A: General

      Volume: 638 Pages: 118635-118635

    • DOI

      10.1016/j.apcata.2022.118635

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Introduction of tensile strain into titanium dioxide for increased solid acid catalytic activity2022

    • Author(s)
      Takagaki Atsushi、Ozaki Taiga、Song Jun Tae、Niwa Eiki、Watanabe Motonori、Ishihara Tatsumi
    • Journal Title

      Catalysis Science & Technology

      Volume: 12 Issue: 21 Pages: 6359-6362

    • DOI

      10.1039/d2cy00736c

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Mixing Nitrogen-Containing Compounds for Synthesis of Porous Boron Nitride for Improved Porosity, Surface Functionality, and Solid Base Catalytic Activity2022

    • Author(s)
      Takagaki Atsushi、Nakamura Shohei、Ashimura Shu、Yoshida Masaaki、Song Jun Tae、Watanabe Motonori、Hayashi Shigenobu、Ishihara Tatsumi
    • Journal Title

      Applied Catalysis A : General

      Volume: -

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Oxidative Conversion of Glucose to Formic Acid as a Renewable Hydrogen Source Using an Abundant Solid Base Catalyst2021

    • Author(s)
      Takagaki Atsushi、Obata Wataru、Ishihara Tatsumi
    • Journal Title

      ChemistryOpen

      Volume: 10 Issue: 10 Pages: 954-959

    • DOI

      10.1002/open.202100074

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Production of formic acid from carbohydrates using hydrogen peroxide in the presence of CaO solid base catalyst2022

    • Author(s)
      Atsushi Takagaki, Wataru Obata, Ikuto Yoshiki, Tatsumi Ishihara
    • Organizer
      12th International Conference on Environmental Catalysis (ICEC2022)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 無機材料の新しい触媒機能開拓2022

    • Author(s)
      高垣敦
    • Organizer
      第442回触媒化学研究所コロキウム
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] メカノケミカル反応による触媒合成と触媒反応2022

    • Author(s)
      高垣敦
    • Organizer
      JAIST 物質化学フロンティアシンポジウム 2022
    • Related Report
      2022 Annual Research Report
    • Invited

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Published: 2021-07-13   Modified: 2024-01-30  

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