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Development of a novel low-temperature gasification technology that can produce fuel gases highly efficiently by intensifying the catalytic effects of metals

Research Project

Project/Area Number 18KK0408
Research Category

Fund for the Promotion of Joint International Research (Fostering Joint International Research (A))

Allocation TypeMulti-year Fund
Research Field Reaction engineering/Process system
Research InstitutionTokyo University of Agriculture and Technology

Principal Investigator

Fushimi Chihiro  東京農工大学, 工学(系)研究科(研究院), 教授 (50451886)

Project Period (FY) 2019 – 2020
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥13,130,000 (Direct Cost: ¥10,100,000、Indirect Cost: ¥3,030,000)
Keywords熱分解 / ガス化 / ダウナー反応器 / 流動層 / 気体燃焼製造 / 低温ガス化 / 燃料ガス製造 / 付着炭素 / 水蒸気 / 反応器 / 金属触媒
Outline of Final Research Achievements

Experiments of coal pyrolysis and gasification was conducted in a novel downer (i.e. co-current down flow) pyrolyzer and bubbling fluidized bed gasifier. The effect of non-porous graphite carbon particles preheated at 1173 K was investigated. Results show the non-porous carbon greatly suppress the emission of tar owing to the decomposition of aromatic hydrocarbons into coke. Results indicate the conversion ratio to gases increased as graphite carbon to coal (C/C) weight ratio increases. Results from diffuse reflectance FT-IR show slight increase of carboxylic -OH and C=O bonds on graphite carbon surfaces.
The reactivity of the carbon was: char >>> DC after gasification > DC after pyrolysis > graphite carbon.
H2O has higher reactivity than CO2 during char gasification. This is due to the fact that a larger amount of C-O is remaining on the char during gasification.

Academic Significance and Societal Importance of the Research Achievements

炭素系資源のガス化によるガス燃料(主にH2とCO)の生成効率指標として冷ガス効率があるが、これまで熱力学的に低温で効率が上がることが示唆されていた。しかし、低温でのガス化では、反応初期に生成するタールの処理と、チャーの反応性が低いことが問題となっている。本研究では熱分解時に反応温度まで加熱した粒子を供給し、初期のタールの粒子への付着挙動やその付着炭素のガス化反応特性を初めて明らかにした。
ここで得られた知見は、炭素リサイクルの反応器として近年着目されているバイオマスや炭素系廃棄物(廃プラスチックや廃タイヤなど)の低温ガス化炉にもそのまま適用可能である。

Report

(3 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • Research Products

    (9 results)

All 2020 2019 Other

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

  • [Int'l Joint Research] カーティン大学(オーストラリア)2019

    • Year and Date
      2019-06-15
    • Related Report
      2020 Annual Research Report
  • [Journal Article] Difference in tar reforming activities between biochar catalysts activated in H2O and CO22020

    • Author(s)
      Yurong Liu, Mark Paskevicius, Hongqi Wang, Chihiro Fushimi, Gordon Parkinson, Chun-Zhu Li
    • Journal Title

      Fuel

      Volume: 271 Pages: 117636-117636

    • DOI

      10.1016/j.fuel.2020.117636

    • Related Report
      2020 Annual Research Report 2019 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] 熱媒体粒子存在下における気泡流動層ガス化炉でのチャーと付着炭素の反応性の評価2020

    • Author(s)
      ○長谷川 研志郎、Ismail S.N.B.、内野 貴行、村越 亮、小山 雅代、酒井 裕香、伏見 千尋
    • Organizer
      第22回 化学工学会 学生発表会 東京大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 気泡流動層型ガス化炉における炭素粒子存在下での石炭チャーと付着炭素の反応性の解明2020

    • Author(s)
      長谷川研志郎、Siti Norazian Binti ISMAIL, 内野貴行、村越亮、小山雅代、酒井裕香、伏見千尋
    • Organizer
      第25回 流動化・粒子プロセッシングシンポジウム(化学工学会)
    • Related Report
      2020 Annual Research Report
  • [Presentation] 気泡流動層型ガス化炉における炭素粒子存在下での石炭チャーと付着炭素の反応性の解明2019

    • Author(s)
      長谷川研志郎、Siti Norazian Binti ISMAIL, 内野貴行、村越亮、小山雅代、酒井裕香、伏見千尋
    • Organizer
      第25回 流動化・粒子プロセシングシンポジウム(化学工学会)
    • Related Report
      2019 Research-status Report
  • [Remarks] 東京農工大学 伏見研究室 website

    • URL

      https://web.tuat.ac.jp/~cfushimi/

    • Related Report
      2020 Annual Research Report
  • [Remarks] Fushimi Laboratory website

    • URL

      https://web.tuat.ac.jp/~cfushimi/

    • Related Report
      2020 Annual Research Report
  • [Remarks] 東京農工大学 伏見研究室 website

    • URL

      http://web.tuat.ac.jp/~cfushimi/

    • Related Report
      2019 Research-status Report
  • [Remarks] Fushimi Laboratory website (English)

    • URL

      http://web.tuat.ac.jp/~cfushimi/index_e.html

    • Related Report
      2019 Research-status Report

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Published: 2019-02-06   Modified: 2022-01-27  

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