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Precise control plasma-catalyst interaction

Research Project

Project/Area Number 18K18754
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 14:Plasma science and related fields
Research InstitutionKyushu University

Principal Investigator

Koga Kazunori  九州大学, システム情報科学研究院, 教授 (90315127)

Project Period (FY) 2018-06-29 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Fiscal Year 2019: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2018: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Keywordsプラズマ / 触媒 / CO2メタン化 / サバチエ反応 / 水素貯蔵 / 任意波形
Outline of Final Research Achievements

The methanation of CO2 attracts attention as the ways of CO2 reduction. The Sabatier reaction has been employed to generate CH4 from CO2 and H2. In this reseach, we aim to realize high throughput in low temperature condition using non-thermal H2/CH4 plasma with catalyst. We obtained the following results. (1) We studied rate-limiting steps of CO2 methanation in the plasma-catalytic process. From the catalyst temperature dependence of CH4 yield, there are two rate-limiting region; gas-phase reaction at the low temperature region and surface reaction at the high temperature. (2) We found gas flow rate, H2 concentration and duty ratio in pulse discharge are important parameters. The start temperature of surface reaction can be decreased by enhancing gas-phase reaction. The plasma is promising to reduce the period to start the catalytic reaction.

Academic Significance and Societal Importance of the Research Achievements

日本のCO2排出量を2050年までに80%削減する目標が設定される中、カーボンリサイクリングによるエネルギー貯蔵が注目を集めている。その中でCO2の水素化は水素貯蔵プロセスとして特に重要視されている。従来の触媒を利用したサバティエ反応によるCO2メタン化では、①触媒表面におけるカーボン析出により触媒活性が失われること、②触媒法は200℃以上のプロセス温度が必要であるがサバティエ反応は発熱反応であるためプロセス温度が容易に上昇し期待しない副反応の促進や触媒失活を招くことが課題である。本研究により、プラズマと触媒の併用プロセスが従来の触媒法を補完する技術して期待できることを示した。

Report

(3 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • Research Products

    (14 results)

All 2020 2019 2018 Other

All Journal Article (1 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 1 results) Presentation (11 results) (of which Int'l Joint Research: 6 results,  Invited: 1 results) Remarks (2 results)

  • [Journal Article] Dependence of CO2 Conversion to CH4 on the CO2 Flow Rate in a Helicon Discharge Plasma2018

    • Author(s)
      Susumu Toko, Ryu Katayama, Kaunori Koga, Edbertho Leal-Quiros, Masaharu Shiratani
    • Journal Title

      Science of Advanced Materials

      Volume: 10 Issue: 5 Pages: 655-659

    • DOI

      10.1166/sam.2018.3141

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Methane production for energy storage using low temperature plasma (Invited)2020

    • Author(s)
      M. Shiratani, M. Ideguchi, A. Yamamoto, D. Yamashita, K. Kamataki, N. Itagaki, K. Koga
    • Organizer
      7th Korea-Japan Joint Symposium on Advanced Solar Cells 2020, 4th International Symposium on Energy Research and Application
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] パルス変調プラズマ触媒法による二酸化炭素のメタン化2019

    • Author(s)
      出口雅志, 山本瑛久, 山下大輔, 板垣奈穂, 鎌滝晋礼, 古閑一憲, 白谷正治
    • Organizer
      プラズマ・核融合学会九州・沖縄・山口支部 第23回支部大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 低温低圧プラズマと触媒を用いた二酸化炭素のメタン化率とCO発光強度の相関2019

    • Author(s)
      山本瑛久, 出口雅史, 山下大輔, 鎌滝晋礼, 板垣奈穂, 古閑一憲, 白谷正治
    • Organizer
      第36回プラズマ・核融合学会年会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Optical emission spectroscopy of plasma-catalytic CO2 methanation2019

    • Author(s)
      A. Yamamoto, M. Ideguchi, S. Toko, K. Koga, M. Shiratani
    • Organizer
      72nd Gaseous Electronics Conference
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Rate Limiting Factors of Low Pressure Plasma-catalytic CO2 Methanation Process2019

    • Author(s)
      K. Koga, A. Yamamoto, K. Kamataki, N. Itagaki, M. Shiratani
    • Organizer
      AVS 66th International Symposium & Exhibition
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] プラズマ-触媒併用型二酸化炭素メタン変換における律速段階2018

    • Author(s)
      都甲将, 谷田知史, 山本瑛久, 古閑一憲, 白谷正治
    • Organizer
      第65回応用物理学会春季学術講演会
    • Related Report
      2018 Research-status Report
  • [Presentation] Effect of gas flow rate on plasma-catalytic methanation reaction2018

    • Author(s)
      A. Yamamoto, S. Tanida, S. Toko, K. Koga, M. Shiratani
    • Organizer
      29th Symposium on Plasma Physics and Technology (SPPT)
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] 銅電極を用いた低圧放電によるCO2のメタン変換2018

    • Author(s)
      谷田知史,山本瑛久,古閑一憲,白谷正治
    • Organizer
      放電/プラズマ・パルスパワー合同研究会
    • Related Report
      2018 Research-status Report
  • [Presentation] CO2のCH4化のための低圧高周波プラズマの分光計測2018

    • Author(s)
      谷田知史,山本瑛久, 古閑一憲, 白谷正治
    • Organizer
      第35回プラズマ・核融合学会年会
    • Related Report
      2018 Research-status Report
  • [Presentation] Approaches to increase throuput of Plasma- Catalytic CO2 methanation2018

    • Author(s)
      S. Tanida, A. Yamamoto, K. Koga, and M. Shiratani
    • Organizer
      28th Annual Meeting of MRS-Japan 2018
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] CO2 hydrogenation by plasma catalytic method: pressure dependence2018

    • Author(s)
      A. Yamamoto, S. Tanida, K. Koga, and M. Shiratani
    • Organizer
      28th Annual Meeting of MRS-Japan 2018
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Remarks] プラズマ工学研究室

    • URL

      http://plasma.ed.kyushu-u.ac.jp/

    • Related Report
      2019 Annual Research Report
  • [Remarks] プラズマ工学研究室

    • URL

      http://plasma.ed.kyushu-u.ac.jp/index.html

    • Related Report
      2018 Research-status Report

URL: 

Published: 2018-07-25   Modified: 2021-02-19  

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