• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Fundamental study of impurities influence on hydrate nuclaeation

Research Project

Project/Area Number 18560775
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Naval and maritime engineering
Research InstitutionNational Maritime Research Institute

Principal Investigator

YAMANE Kenji  National Maritime Research Institute, National Maritime Researth Institute Indepandent Administraive Institution Deputy, Director (10358393)

Co-Investigator(Kenkyū-buntansha) ABE Yutaka  University of Tsukuba, Graduate School of Systems and Information Engineering, Professor (10241720)
Project Period (FY) 2006 – 2007
Project Status Completed (Fiscal Year 2007)
Budget Amount *help
¥4,010,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥510,000)
Fiscal Year 2007: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2006: ¥1,800,000 (Direct Cost: ¥1,800,000)
KeywordsCO2hydrate / Nucleation / Induction time / Cluster / Memory effect / Ocean storage / Crystal growth / ハイドレート / 地球温暖化 / CO2海底隔離 / 高圧チャンバ実験 / インダクションタイム / メタンコンバータ / ガスクロ / CO2分離技術
Research Abstract

It is important to elucidate the knowledge of hydrate nucleation for not only hydrate basic field but also engineering and industrial field. However the knowledge of hydrate nucleation is lacked due to the difficulty of formation of hydrate even under the suitable pressure and temperature conditions on the phase diagram experimentally.
The objective of the present study is to elucidate the conditions which influence on hydrate nucleation. In this study, we used the liquid CO_2 related to the ocean as a guest and measured the induction time under the various conditions of the surrounding water as a host (temperature, dissolved CO_2 concentration, and initial H_2O cluster)
We measured the time from putting liquid CO_2 droplet into the pressure chamber (30MPa, 3〜5℃) to forming the hydrate film. Relationship between dissolved CO_2 concentration, water temperature in the chamber and induction time was evaluated respectively and following results were obtained.
・The relation between CO_2 concen … More tration and induction time wasn't confirmed.
・There is the tendency that the lower temperature and the larger volume of putted liquid CO_2 droplet cause the shorter the induction time.
We putted liquid CO_2 droplet and measured the induction time after the temperature and pressure history of a host water side have been changed, (Initial H_2O cluster have been changed) We obtained following results.
・In the case of using the water that had previously left under the atmospheric pressure and low temperature, hydrate formation was hardly observed.
・In the case of using the water that had previously frozen as ice and melted at atmospheric pressure, hydrate formation was not observed.
・In the case of using the water that had previously frozen as ice and melted at hydrate formation pressure, hydrate formation was identified. In addition the ratio of melted water weight was changed. The lager quantity of melted water causes the shorter the induction time.
From above knowledge, we elucidated that CO_2 concentration hardly influence on hydrate nucleation in the range of CO_2 concentration of this study and the condition of H_2O cluster of the host water side may influence on hydrate nucleation greatly. Less

Report

(3 results)
  • 2007 Annual Research Report   Final Research Report Summary
  • 2006 Annual Research Report
  • Research Products

    (18 results)

All 2008 2007 2006

All Journal Article (3 results) (of which Peer Reviewed: 1 results) Presentation (15 results)

  • [Journal Article] The Optical Measurement of CO_2 Clathrate Hydrate Membrane Thickness2007

    • Author(s)
      Yutaka ABE, Yuichi ABE, Izuo AYA and Kenji YAMANE
    • Journal Title

      Journal of Thermal Science and Technology 2

      Pages: 13-18

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Annual Research Report 2007 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] The Optical Measurement of CO_2 Clathrate Hydrate MembraneThickness2007

    • Author(s)
      Yutaka ABE, Yuichi ABE, Izuo AYA and Kenji YAMANE
    • Journal Title

      Journal of Thermal Science and Technology Vol.2

      Pages: 13-18

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] The Optical Measurement of CO2 Clathrate Hydrate Membrane Thickness2007

    • Author(s)
      阿部豊
    • Journal Title

      Journal of Thermal Science and Technology Vol.2 No.1

      Pages: 13-18

    • NAID

      130000099324

    • Related Report
      2006 Annual Research Report
  • [Presentation] 光干渉法によるCO_2ハイドレート膜の厚さ計測2008

    • Author(s)
      松元 佑樹
    • Organizer
      第45回日本伝熱シンポジウム
    • Place of Presentation
      つくば国際会議場
    • Year and Date
      2008-05-21
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Measurement of CO_2 hybrate film thickness with interferometry2008

    • Author(s)
      Yuki MATSUMOTO
    • Organizer
      National Heat Transfer Symposium
    • Place of Presentation
      Tsukuba International Congresss Center
    • Year and Date
      2008-05-21
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] 光干渉法によるCO_2ハイドレート膜の厚さ計測2008

    • Author(s)
      松元 佑樹
    • Organizer
      第45回日本伝熱シンポジウム(予定)
    • Place of Presentation
      つくば国際会議場
    • Year and Date
      2008-05-21
    • Related Report
      2007 Annual Research Report
  • [Presentation] レーザー光干渉法を用いたCO2ハイドレート膜厚の時系列計測2008

    • Author(s)
      松元 佑樹
    • Organizer
      日本機械学会関東学生会第47回学生員卒業研究発表講演会
    • Place of Presentation
      東京海洋大学
    • Year and Date
      2008-03-14
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Time series measurement of C02 hydrate film thickness using laser interferometry2008

    • Author(s)
      Yuki MATSUMOTO
    • Organizer
      The Japan Society of Mechanical Engineers kanto Branch
    • Place of Presentation
      Univ. of Tokyou Kaiyou
    • Year and Date
      2008-03-14
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] レーザー光干渉法を用いたCO_2ハイドレート膜厚の時系列計測2008

    • Author(s)
      松元 佑樹
    • Organizer
      日本機械学会関東学生会第47回学生員卒業研究発表講演会
    • Place of Presentation
      東京海洋大学
    • Year and Date
      2008-03-14
    • Related Report
      2007 Annual Research Report
  • [Presentation] CO_2ハイドレートの生成特性に関する研究2008

    • Author(s)
      松元 佑樹
    • Organizer
      本機械学会2008年次大会
    • Place of Presentation
      横浜国立大学
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] CO_2ハイドレートの生成特性に関する研究2008

    • Author(s)
      松元 佑樹
    • Organizer
      本機械学会2008年次大会(予定)
    • Place of Presentation
      横浜国立大学
    • Related Report
      2007 Annual Research Report
  • [Presentation] 乖離温度近傍におけるCO2ハイドレートの挙動に関する研究2006

    • Author(s)
      安部 祐一
    • Organizer
      日本機会学会熱工学コンファレンス2006
    • Place of Presentation
      慶応大学
    • Year and Date
      2006-11-24
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] The study on the behavior of CO2 hydrate near the dissociation temperature2006

    • Author(s)
      Yuichi ABE
    • Organizer
      Thermal Engineering Conference
    • Place of Presentation
      Univ. of Keiou
    • Year and Date
      2006-11-24
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] 乖離近傍条件におけるCO2ハイドレートの挙動に関する研究2006

    • Author(s)
      安部 祐一
    • Organizer
      日本機会学会2006年度年次大会
    • Place of Presentation
      熊本大学
    • Year and Date
      2006-09-19
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] The study on the behavior of CO2 hydrate film near the melting temperature2006

    • Author(s)
      Yuichi ABE
    • Organizer
      The Japan Society of Mechanical Engineers
    • Place of Presentation
      Univ. of Kumamoto
    • Year and Date
      2006-09-19
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] レーザー光干渉法を用いたCO2ハイドレート膜厚の光学計測2006

    • Author(s)
      安部 祐一
    • Organizer
      日本機械学会第12期関東支部総会講演会
    • Place of Presentation
      東洋大学川越キャンパス
    • Year and Date
      2006-03-11
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Study on the measurement of CO2hydrate film thickness by optical method2006

    • Author(s)
      Yunchi ABE
    • Organizer
      The Japan Society of Mechanical Engineers kanto Branch
    • Place of Presentation
      Univ. of Toyou
    • Year and Date
      2006-03-11
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Study on the characteristics of C0_2 hydrate formation2006

    • Author(s)
      Yuki MATSUMOTO
    • Organizer
      The Japan Society of Mechanical Engineers
    • Place of Presentation
      Univ. of Yokohama
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary

URL: 

Published: 2006-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi