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Process Design of Georeactor using multi functional supercritical water

Research Project

Project/Area Number 13305069
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field 資源開発工学
Research InstitutionTOHOKU UNIVERSITY

Principal Investigator

NAKATSUKA Katsuto  TOHOKU UNIVERSITY, Graduate School of Environmental Studies, Professor, 大学院・環境科学研究科, 教授 (60005345)

Co-Investigator(Kenkyū-buntansha) BIGNALL Gregory  TOHOKU UNIVERSITY, Graduate School of Engineering, Research Associate, 大学院・工学研究科, 助手 (70333854)
TSUCHIYA Noriyoshi  TOHOKU UNIVERSITY, Graduate School of Environmental Studies, Assistant Professor, 大学院・環境科学研究科, 助教授 (40207410)
YAMASAKI Nakamichi  TOHOKU UNIVERSITY, Graduate School of Environmental Studies, Professor, 大学院・環境科学研究科, 教授 (50036589)
HIRANO Nobuo  TOHOKU UNIVERSITY, Graduate School of Environmental Studies, Research Associate, 大学院・環境科学研究科, 助手 (80344688)
楊 延国  東北大学, 大学院・工学研究科, 助手 (10323049)
Project Period (FY) 2001 – 2003
Project Status Completed (Fiscal Year 2003)
Budget Amount *help
¥52,390,000 (Direct Cost: ¥40,300,000、Indirect Cost: ¥12,090,000)
Fiscal Year 2003: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2002: ¥16,120,000 (Direct Cost: ¥12,400,000、Indirect Cost: ¥3,720,000)
Fiscal Year 2001: ¥31,720,000 (Direct Cost: ¥24,400,000、Indirect Cost: ¥7,320,000)
Keywordssupercritical water / subcritical water / georeactor / sulfur reaction / hydrothermal reaction / process design / geothermal utilization / hydrogen generation / 地下反応器 / ウォーターデザイン / 硫黄 / 自己酸化還元反応 / 超臨界オートクレーブ / 複成分超臨界流体 / 花崗岩の溶解 / 石英 / 長石 / 高温高密度蒸気 / ワォーターデザイン
Research Abstract

Realistic design and chemical processes of georeactor in geothermal environment were proposed as a advanced direct utilization of geothermal energy. Material processing type, composed of high aspect ratio double and /or multiple tube reactor, could be applied to chemical reaction within the reactor installed in the drill hole, and the other type is steam generator which supplies hot water and steam for chemical reactor constructed on the surface. Adequate chemical processes for the georeactor require mild reaction condition and wide allowance of operating condition because the georeactor is applied in uncontrollable natural resources.
Hydrogen generating system, produced from hydrogen sulfide with high performance photocatalysis, was examined as a case study of the georeactor. Hydrogen generation by solar energy from hydrogen sulfide and recycling of waste sulfur and its compounds using geothermal energy, which is environmental friendly energy supply system in the future. The most impor … More tant factor for designing georeactor is not hard-ware of rector but soft-ware of chemical process. Georeactor shows distinctive properties such as sustainable chemical reactor, environmental harmony friendly system. However, the georeactor has other disadvantages, for example extremely high aspect ratio (long tube reactor), and temperature and pressure conditions can not be controlled actively that depends natural geothermal conditions. So that, precious chemical processes which require high sensitive control of temperature, pressure and chemical reaction behavior was not suitable for georeactor, however specific chemical processes which allow wide range of temperatures and pressures can be expectedas reaction system for georeactor.
In this study, we focused on sulfur -water interaction, particularly on and waste elemental sulfur which can be converted to useful sulfur resources for hydrogen production using high performance optical catalysis. We promote other chemical processes for constructing geotreactor. Less

Report

(4 results)
  • 2003 Annual Research Report   Final Research Report Summary
  • 2002 Annual Research Report
  • 2001 Annual Research Report
  • Research Products

    (19 results)

All Other

All Publications (19 results)

  • [Publications] N.Tsuchiya, Y.Suto, K.Nakatsuka: "Georeactor : Advanced Geothermal Energy Utilization for Material Processing and Hydrogen Generation"Geothermal Resources Council Transactions. 27. 111-114 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Y.Suto, Y.Takano, K.Kabuta, N.Tsuchiya, K.Nakatsuka: "HYDROTHERMAL REACTION PROCESSES OF SULFUR REDUCTION FOR DESIGNING GEOREACTOR"Proceedings of the Seventh International Symposium on Hydrothermal Reactions. 523-529 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Lin Hongfei, Kazuyuki Tohji, Noriyoshi Tsuchiya, Yukito Oda, Nakamichi Yamasaki: "THE REDOX REACTION BEHAVIOR OF SULFUR IN THE HYDROTHERMAL PROCESS"Proceedings of the Seventh International Symposium on Hydrothermal Reactions. 225-231 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] N.Tsuchiya, Y.Suto, K.Nakatsuka: "Georeactor : Advanced Geothermal Energy Utilization for Material Processing and Hydrogen Generation"Geothermal Resources Council Transactions. 27. 111-114 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Y.Suto, Y.Takano, K.Kabuta, N.Tsuchiya, K.Nakatsuka: "HYDROTHERMAL REACTION PROCESSES OF SULFUR REDUCTION FOR DESIGNING GEOREACTOR"Proceedings of the Seventh International Symposium on Hydrothermal Reactions. 523-529 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Lin Hongfei, Kazuyuki Tohji, Noiyoshi Tsuchiya, Yukito Oda, Nakamichi Yamasaki: "THE REDOX REACTION BEHAVIOR OF SULFUR IN THE HYDROTHERMAL PROCESS"Proceedings of the Seventh International Symposium on Hydrothermal Reactions. 225-231 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] N.Tsuchiya, Y.Suto, K.Nakatsuka: "Georeactor : Advanced Geothermal Energy Utilization for Material Processing and Hydrogen Generation"Geothermal Resources Council Transactions. 27. 111-114 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] 王 毅, 平野伸夫, 土屋範芳, 中塚勝人, 山崎仲道, 石田孝弘: "200℃から350℃の熱水による花崗岩の初期溶解挙動"日本地熱学会誌. 25・2. 129-137 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] LIN HONGFEI, KAZUYUKI TOHJI, NORIYOSHI TSUCHIYA, YUKITO ODA, NAKAMICHI YAMASAKI: "THE REDOX REACTION BEHAVIOR OF SULFUR IN THE HYDROTHERMAL PROCESS"Proceedings of the Seventh International Symposium on Hydrothermal Reactions. 225-231 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Y.SUTO, Y.TAKANO, T.KABUTA, N.TSUCHIYAKNAKATSUKA: "HYDROTHERMAL REACTION PROCESSES OF SULFUR REDUCTION FOR DESIGNING GEOREACTOR"Proceedings of the Seventh International Symposium on Hydrothermal Reactions. 523-529 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Shingo Kano: "Anisotropy of Cooling Joint Systems in Granite"Goethermal Resoutces Council Trransactions. 26. 309-314 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Nobuo Hirano: "Experimental Approach to Hydrothemally Derived Fracturing of Granitic Rock for Enhanced Geothermal Reservoir Systems"Geothermal Resoutces Council Transactions. 26. 285-288 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Shingo Kano: "Parallepiped Cooling Joint and Anisotropy of P-wave Velocity in the Takidani Granitoid, Japan Alps"Journal of Volcanology and Geothermal Research. 114. 465-477 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] N.Tsuchiya, N.Hirano, G.Bignall, K.Nakatsuka: "Supercritical Water-Rock Interaction For Development Of Deep Seated Geothermal Reservoirs"Water-Rock Interaction, 10^<th>. 209-212 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Y.Suto, L.Liu, T.Hashida, N.Tsuchiya, N.Yamasaki: "Experimental Study of Rock/water/C02 Interaction At Temperatures Of 100-300℃"Water-Rock Interaction, 10^<th>. 341-344 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] J.Hara, A.Inoue, N.Tsuchiya: "Mineralogical Alteration Zoning In Active Geothermal Systems of The Hachimantai Volcanic Region, Northeast Japan"Water-Rock Interaction, 10^<th>. 847-850 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] K.Sekine, G.Bignall, N.Tsuchiya, K.Nakatsuka: "Evidence For Fluid Flow In Non-Brittle Takidani Granite Implications For Utilization Os DSGRs"Geothermal Resources Council Transactions, 25^<th>. 243-248 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] G.Bignall, N.Tsuchiya, P.R.L.Browne: "Use Of Illite Crystallinity As A Temperature Indicator In The Orakei Korako Geothermal System, New Zealand"Geothermal Resources Council Transactions, 25^<th>. 339-344 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Y.G.Yang, M.Inone, G.Bignall, N.Tsuchiya, T.Chida, K.Nakatsuka: "Fractal Model And Hydraulic Properties Of Hydrothermal Veins In Granite"International Symposium of Young Scholars on Mechanics and Material Engineering for Science and Experiments. 565-568 (2001)

    • Related Report
      2001 Annual Research Report

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Published: 2001-04-01   Modified: 2021-04-07  

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