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Model for non-equimolar counter diffusion in molecular diffusion region by breaking down the phenomena

Research Project

Project/Area Number 16K06831
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Properties in chemical engineering process/Transfer operation/Unit operation
Research InstitutionKagoshima University

Principal Investigator

Kai Takami  鹿児島大学, 理工学域工学系, 教授 (00177312)

Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2018: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2016: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywords拡散 / Grahamの法則 / 非等モル / 分子拡散 / 相互拡散 / 分離操作 / 多孔質体 / 物質移動 / 分子運動 / 多成分系拡散
Outline of Final Research Achievements

It was reported in 1833 that the non-equimolar binary gas diffusion occurred in porous materials under isobaric condition. Although this phenomenon has been known as Graham’s law, the mechanism has not been correctly explained. In this study, a model was constructed by introducing an intrinsic diffusion coefficient for each molecule. In addition, the validity of the model was confirmed by the experiments of binary gas diffusion under isovolumetric condition.

Academic Significance and Societal Importance of the Research Achievements

本研究の成果の学術的意義は過去200年近く説明がなされてなかった圧力が等しい条件での細孔内での非等モル相互拡散のメカニズムを明らかにした点である。多孔質触媒、燃料電池の電極やマイクロチャンネルなどの微小空間での多成分気体分子の拡散現象を正確に表すことは今後ますます重要になってくると思われる。このような現象の評価に設計ツールとして化学工学の考え方を生かす際に本研究の成果は役立つと考えられる。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (17 results)

All 2018 2017 2016

All Journal Article (2 results) (of which Peer Reviewed: 1 results) Presentation (15 results) (of which Int'l Joint Research: 2 results,  Invited: 1 results)

  • [Journal Article] A Model for Non-Equimolar Binary Gas Diffusion through Pores in the Region of Molecular Diffusion2017

    • Author(s)
      甲斐敬美
    • Journal Title

      KAGAKU KOGAKU RONBUNSHU

      Volume: 43 Issue: 4 Pages: 271-280

    • DOI

      10.1252/kakoronbunshu.43.271

    • NAID

      130005815239

    • ISSN
      0386-216X, 1349-9203
    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] 充てん層における定容系での二成分ガスの非等モル拡散現象の解析2017

    • Author(s)
      濱野且智,甲斐敬美,中里勉
    • Journal Title

      第23回流動化・粒子プロセッシングシンポジウム講演論文集

      Volume: 2017 Pages: 151-154

    • Related Report
      2017 Research-status Report
  • [Presentation] 細孔内での二成分ガス非等モル相互拡散のモデルの検証2018

    • Author(s)
      濱野且智,甲斐敬美,中里勉
    • Organizer
      日本流体力学会年会2018
    • Related Report
      2018 Annual Research Report
  • [Presentation] 分子拡散領域における細孔内での気体の非等モル相互拡散のモデル2018

    • Author(s)
      甲斐敬美
    • Organizer
      化学工学会第50回秋季大会
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] 二成分ガスの細孔内での非等モル相互拡散モデルの検証2018

    • Author(s)
      濱野且智,甲斐敬美,中里勉
    • Organizer
      化学工学会第50回秋季大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Validation of a model for non-equimolar counter diffusion of binary gas mixture in a micropores2018

    • Author(s)
      Katsutoshi Hamano, Takami Kai, Tsutomu Nakazato
    • Organizer
      The 31th International Symposium on Chemical Engineering
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] キャピラリ細孔での二成分ガス非等モル相互拡散の解析2018

    • Author(s)
      濱野且智,甲斐敬美,中里勉
    • Organizer
      第24回流動化・粒子プロセッシングシンポジウム
    • Related Report
      2018 Annual Research Report
  • [Presentation] 細孔内における定容系での二成分ガスの非等モル拡散現象の解析2018

    • Author(s)
      濱野且智,甲斐敬美,中里勉
    • Organizer
      化学工学会第83年会
    • Related Report
      2017 Research-status Report
  • [Presentation] 固定層における定容系での二成分ガスの非等モル拡散現象の解析2017

    • Author(s)
      濱野且智,甲斐敬美,中里勉
    • Organizer
      第54回化学関連支部合同九州大会
    • Related Report
      2017 Research-status Report
  • [Presentation] 充てん層における定容系での二成分ガスの非等モル拡散現象の解析2017

    • Author(s)
      濱野且智,甲斐敬美,中里勉
    • Organizer
      第28回九州地区若手ケミカルエンジニア討論会
    • Related Report
      2017 Research-status Report
  • [Presentation] 粒子充てん層における定容系での二成分ガスの非等モル拡散現象の解析2017

    • Author(s)
      濱野且智,甲斐敬美,中里勉
    • Organizer
      化学工学会東京大会
    • Related Report
      2017 Research-status Report
  • [Presentation] Analysis of non-equimolar binary gas diffusion in a packed bed under isovolumetric condition2017

    • Author(s)
      Katsutoshi Hamano, Takami Kai, Tsutomu Nakazato
    • Organizer
      The 30th International Symposium on Chemical Engineering
    • Related Report
      2017 Research-status Report
  • [Presentation] 充てん層における定容系での二成分ガスの非等モル拡散現象の解析2017

    • Author(s)
      濱野且智,甲斐敬美,中里勉
    • Organizer
      第23回流動化・粒子プロセッシングシンポジウム
    • Related Report
      2017 Research-status Report
  • [Presentation] ガス切り換えによる非流動化の原因となる非等モル相互拡散のモデル2016

    • Author(s)
      甲斐敬美
    • Organizer
      第22回流動化・粒子プロセッシングシンポジウム
    • Place of Presentation
      東京大学生産研究所(東京都・目黒区)
    • Year and Date
      2016-12-08
    • Related Report
      2016 Research-status Report
  • [Presentation] 流動化ガス切り替えに起因する非流動化現象に及ぼすガスと粒子物性の影響2016

    • Author(s)
      寺地晃佑,甲斐敬美,中里勉
    • Organizer
      第22回流動化・粒子プロセッシングシンポジウム
    • Place of Presentation
      東京大学生産研究所(東京都・目黒区)
    • Year and Date
      2016-12-08
    • Related Report
      2016 Research-status Report
  • [Presentation] Effects of the properties of gas and particles on defluidization caused by switching of fluidizing gas2016

    • Author(s)
      Kosuke Terachi, Takami Kai, Tsutomu Nakazato
    • Organizer
      The 29th International Symposium on Chemical Engineering
    • Place of Presentation
      シーガイアコンベンションセンター(宮崎県・宮崎市)
    • Year and Date
      2016-12-02
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] 流動触媒層反応器で起きる奇妙な現象と多成分系気体の非等モル拡散モデル2016

    • Author(s)
      甲斐敬美
    • Organizer
      化学工学会第47回秋季大会
    • Place of Presentation
      徳島大学(徳島県・徳島市)
    • Year and Date
      2016-09-06
    • Related Report
      2016 Research-status Report

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Published: 2016-04-21   Modified: 2020-03-30  

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