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2019 年度 実績報告書

鉱物触媒水熱反応を用いた二酸化炭素の地中資源化システム

研究課題

研究課題/領域番号 18J12695
研究機関東北大学

研究代表者

WANG JIAJIE  東北大学, 環境科学研究科, 特別研究員(DC2)

研究期間 (年度) 2018-04-25 – 2020-03-31
キーワードOlivine / Serpentinization / CO2 mineralization / Hydrogen production
研究実績の概要

In this research year, reaction pathways and Fe behaviors during water-olivine-CO2 reactions under different reaction conditions were further summarized and published in the conferences of "17th ICCDU (Germany, 2019)" and 日本地球惑星科学連合大会(2019).
The influences of the most common coexisting minerals (i.e., pyroxenes and spinel) with olivine in peridotite in natural system were clarified. The presence of orthopyroxene or Mg-Al spinel can accelerate olivine alteration in CO2-rich hydrothermal environments and change Fe(II) behaviors without significant influence on the total H2 yield in terms of long-time reaction. However, the mineralization of CO2 could not be enhanced. The role of orthopyroxene and Mg-Al spinel also changed with the reaction time. These findings suggest that using peridotite that contains pyroxenes or spinels for H2 production is also possible; in general, peridotite contains <20 wt% orthopyroxene or >10 wt% Mg-Al spinel is more suitable for H2 production than monomineralic olivine. For another, several ways for elevating H2 production (e.g., including Al sources) were also suggested.
This part of research is a step forward in large-scale application of the new negative-carbon H2 production system. The results have been summarized into 2 papers published in the journal of “International Journal of Hydrogen energy (IF: 4.229)”.

現在までの達成度 (段落)

令和元年度が最終年度であるため、記入しない。

今後の研究の推進方策

令和元年度が最終年度であるため、記入しない。

  • 研究成果

    (7件)

すべて 2020 2019 その他

すべて 雑誌論文 (3件) (うち査読あり 3件) 学会発表 (3件) (うち国際学会 2件) 備考 (1件)

  • [雑誌論文] Characteristics of hydrogen production with carbon storage by CO2-rich hydrothermal alteration of olivine in the presence of Mg-Al spinel2020

    • 著者名/発表者名
      Wang Jiajie、Watanabe Noriaki、Okamoto Atsushi、Nakamura Kengo、Komai Takeshi
    • 雑誌名

      International Journal of Hydrogen Energy

      巻: 45 ページ: 13163-13175

    • DOI

      10.1016/j.ijhydene.2020.03.032

    • 査読あり
  • [雑誌論文] Acceleration of hydrogen production during water-olivine-CO2 reactions via high-temperature-facilitated Fe(II) release2019

    • 著者名/発表者名
      Wang Jiajie、Watanabe Noriaki、Okamoto Atsushi、Nakamura Kengo、Komai Takeshi
    • 雑誌名

      International Journal of Hydrogen Energy

      巻: 44 ページ: 11514~11524

    • DOI

      10.1016/j.ijhydene.2019.03.119

    • 査読あり
  • [雑誌論文] Pyroxene control of H2 production and carbon storage during water-peridotite-CO2 hydrothermal reactions2019

    • 著者名/発表者名
      Wang Jiajie、Watanabe Noriaki、Okamoto Atsushi、Nakamura Kengo、Komai Takeshi
    • 雑誌名

      International Journal of Hydrogen Energy

      巻: 44 ページ: 26835~26847

    • DOI

      10.1016/j.ijhydene.2019.08.161

    • 査読あり
  • [学会発表] Influence of pyroxene on peridotite alteration process and kinetics under CO2-rich hydrothermal conditions2019

    • 著者名/発表者名
      Wang Jiajie、Watanabe Noriaki、Okamoto Atsushi、Nakamura Kengo、Komai Takeshi
    • 学会等名
      16th International Workshop on Water Dynamics
    • 国際学会
  • [学会発表] Pyroxene control of peridotite alteration pathways and kinetics under CO2-rich hydrothermal conditions2019

    • 著者名/発表者名
      Wang Jiajie、Watanabe Noriaki、Okamoto Atsushi、Nakamura Kengo、Komai Takeshi
    • 学会等名
      日本地球惑星科学連合 2019年大会
  • [学会発表] NaHCO3-promoted H2 Production during Water-Olivine Reactions under High-temperature conditions2019

    • 著者名/発表者名
      Wang Jiajie、Watanabe Noriaki、Okamoto Atsushi、Nakamura Kengo、Komai Takeshi
    • 学会等名
      17th International Conference on Carbon Dioxide Utilization
    • 国際学会
  • [備考] Jiajie Wang (researchmap)

    • URL

      https://researchmap.jp/jiajie_wang1

URL: 

公開日: 2021-01-27  

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