Fundamental study on feasibility of sub-seabed geological storage of CO2 by using gas hydrate

2009 Fiscal Year Final Research Report

• Project/Area Number: 19360389
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Naval and maritime engineering
• Research Institution: The University of Tokyo
• Principal Investigator: SATO Toru The University of Tokyo, 大学院・新領域創成科学研究科, 教授 (30282677)
• Project Period (FY): 2007 – 2009
• Keywords: CO_2地中貯留 / ガスハイドレート / 温暖化対策 / 海底堆積層 / 気液二相流

Research Abstract

A CO_2 hydrate ball was set up in a high-pressure cell and the hydrate dissociation rate constant was obtained. Next, hydrate formation rate was measured at the CO_2-H_2O interface by using a Micro-DSC. Then, by using the obtained parameters, a two-phase flow simulation with CO_2 hydrate formation was conducted for the sand layer, which simulates the sub-seabed sediments. As a result, the CO_2 storage in the form of gas hydrate is recognized feasible with the storage potential of 18.5-188 billion t-CO_2 and its cost of about 10600 yen/t-CO_2.

Research Products

• [Presentation] ガスハイドレート分解速度係数に関する研究 (2010)
  • Author(s): 佐藤徹, 施武陽, 中山貴文, 福元文子, 山崎章弘, 清野文雄
  • Organizer: 第1回メタンハイドレート総合シンポジウム
  • Place of Presentation: 産業総合研究所臨海副都心センター会議場 (東京都)
  • Year and Date: 2010-02-26
• [Presentation] Microscale Modelling of Water and Gas-Water Flows in Subsea Sand Sediment (2009)
  • Author(s): Toru Sato, Toshio Sugita, Jiro Nagao, Yusuke Jin, Fumio Kiyono
  • Organizer: 2009 American Geophysics Union (AGU) Fall Meeting
  • Place of Presentation: USA, San Francisco
  • Year and Date: 2009-12-17
• [Presentation] Numerical modelling for estimating permeability of gas-water and solid-water phases in sand sediment (2009)
  • Author(s): Sugita, T, Sato, T, Hirabayashi, S, Nagao, J, Jin, Y, Kiyono, F
  • Organizer: 4th East Asian Workshop for Marine Environments
  • Place of Presentation: 韓国、釜山
  • Year and Date: 2009-11-06
• [Presentation] Microscale Numerical Simulation for Estimating Permeability of Gas-Water and Solid-Water Phases in Sand Sediment. 9th Int (2009)
  • Author(s): Toshio Sugita, Toru Sato, Jiro Nagao, Yusuke Jin, Fumio Kiyono
  • Organizer: Offshore and Polar Eng. Conf
  • Place of Presentation: 大阪国際コンベンションセンター (大阪府)
  • Year and Date: 2009-06-26
• [Presentation] Numerical and Experimental Study on Dissociation Process of CO_2 Hydrate under Water Flow (2008)
  • Author(s): Ayako Fukumoto, Toru Sato, Sean Wuyang, Akihiro Yamasaki, Fumio Kiyono
  • Organizer: 6th Int.Conf.on Gas Hydrates
  • Place of Presentation: カナダ・バンクーバー
  • Year and Date: 2008-07-09
• [Presentation] 微小スケールシミュレーションによるメタンハイドレート堆積層の浸透率解析 (2008)
  • Author(s): 杉田年男, 佐藤徹, 長尾二郎
  • Organizer: 第20回海洋工学シンポジウム
  • Place of Presentation: 東京
  • Year and Date: 2008-03-18