| Project/Area Number |
18J12695
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| Research Category |
Grant-in-Aid for JSPS Fellows
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| Allocation Type | Single-year Grants |
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| Section | 国内 |
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| Research Field |
Earth system and resources engineering
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| Research Institution | Tohoku University |
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Principal Investigator |
WANG JIAJIE 東北大学, 環境科学研究科, 特別研究員(DC2)
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| Project Period (FY) |
2018-04-25 – 2020-03-31
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| Project Status |
Completed (Fiscal Year 2019)
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| Budget Amount *help |
¥1,900,000 (Direct Cost: ¥1,900,000)
Fiscal Year 2019: ¥900,000 (Direct Cost: ¥900,000)
Fiscal Year 2018: ¥1,000,000 (Direct Cost: ¥1,000,000)
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| Keywords | Olivine / Serpentinization / CO2 mineralization / Hydrogen production / serpentinization / carbonation / CO2 storage / Hydrocarbon |
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| Outline of Annual Research Achievements |
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)”.
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| Research Progress Status |
令和元年度が最終年度であるため、記入しない。
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| Strategy for Future Research Activity |
令和元年度が最終年度であるため、記入しない。
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