Molecular recognition of hydrate by controlled micro structure and development of application process

2012 Fiscal Year Final Research Report

• Project/Area Number: 23656483
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Properties in chemical engineering process/Transfer operation/Unit operation
• Research Institution: Tohoku University
• Principal Investigator: SMITH Richard Lee, Jr. 東北大学, 大学院・環境科学研究科, 教授 (60261583)
• Co-Investigator(Kenkyū-buntansha): OTA Masaki 東北大学, 大学院・工学研究科, 助教 (50455804)
• Project Period (FY): 2011 – 2012
• Keywords: ハイドレート / 分離プロセス / ミクロ構造 / 形成速度

Research Abstract

Characteristic structural changes that occur in hydrates and semi-clathrate hydrates are important for understanding hydrate properties for gas separation application. In this work, gas adsorption equilibria for H_2 and for CO_2 with the organic liquids clathrate hydrate particles and with the quaternary ammonium salts semi-clathrate hydrate particles. The higher temperature, the H_2/CO_2 selectivity was higher. In 2.6 mol TBAB semi-clathrate hydrate, this value is higher than 100, the hydrates was confirmed adaptability to the gas separation process.

Research Products

• [Journal Article] Review of CO_2-CH_4 clathrate hydrate replacement reaction laboratory studies - Properties and kinetics (2013)
  • Author(s): H. Komatsu, M. Ota, R. L. Smith, Jr., H.Inomata
  • Journal Title: J. Taiwan Inst. Chem. Eng Volume: (in press)
  • URL: http://dx.doi.org/10.1016/j.jtice.2013.03.010
  • Peer Reviewed
• [Journal Article] C. J. Peters, Decomposition kinetics and recycle of binary hydrogen-tetrahydrofuran clathrate hydrate (2011)
  • Author(s): H. Yoshioka, M. Ota, Y. Sato, M. Watanabe, H. Inomata, R. L. Smith, Jr
  • Journal Title: AIChE Volume: 57 (1) Pages: 265-272
  • DOI: DOI:10.1002/aic.12241
  • Peer Reviewed
• [Presentation] Measurement of the adsorption equilibria of hydrogen and of carbon dioxide in clathrate and semi-clathrate hydrates (2013)
  • Author(s): H. Komatsu, A. Hayasaka, M. Ota, M. Watanabe, R. L. Smith, Jr
  • Organizer: 6th International Symposium on Molecular Thermodynamics and Molecular Simulation
  • Place of Presentation: Higashi-Hiroshima, Japan
  • Year and Date: 2013-09-28
• [Presentation] TBABセミクラスレートハイドレートの相平衡に与えるガス種の影響 (2013)
  • Author(s): 早坂淳,小松博幸,大田昌樹,渡邉賢,佐藤善之,R.L.Smith,Jr
  • Organizer: 化学工学会第78年会
  • Place of Presentation: 大阪大学豊中キャンパス
  • Year and Date: 2013-03-19
• [Presentation] TBABセミクラスレートハイドレートの相平衡に関する研究 (2013)
  • Author(s): 早坂淳,大田昌樹,渡邉賢,R.L.Smith,Jr
  • Organizer: 第12回宮城化学工学懇話会先端研究発表会
  • Place of Presentation: 東北大学青葉山キャンパス
  • Year and Date: 2013-03-07
• [Presentation] 混合セミクラスレートハイドレート形成機構に与えるイオン液体アニオン種の影響 (2012)
  • Author(s): 小松博幸,大田昌樹,渡邉賢,佐藤善之,猪股宏,R.L. Smith,Jr
  • Organizer: 第53回高圧討論会
  • Place of Presentation: 大阪大学豊中キャンパス
  • Year and Date: 2012-11-07
• [Presentation] Effect of Gas Inclusion Behavior on the Phase Equilibrium of (H_2 or CO_2) . Tetra-n-butyl ammonium Bromide Semiclathrate Hydrates (2012)
  • Author(s): A. Hayasaka, H. Komatsu, M. Ota, R. L. Smith, Jr
  • Organizer: International Symposium on Chemical Environmental Biomedical Technology
  • Place of Presentation: Tainan, Taiwan
  • Year and Date: 2012-09-05
• [Presentation] Two Stage Adsorption Model for Formation Kinetics of Hydrogen Binary Clathrate Hydrates (2011)
  • Author(s): H. Komatsu
  • Organizer: The 7th International Symposium on Chemical Environmental Biomedical Technology
  • Place of Presentation: Taipei, Taiwan
  • Year and Date: 2011-09-06
• [Presentation] (2011)
  • Author(s): H. Komatsu, M. Ota, M. Watanabe, Y. Sato, R. L. Smith, Jr
  • Organizer: The 7 th International Conference on Gas Hydrates
  • Place of Presentation: Edinburgh, Scotland, United Kingdom
  • Year and Date: 2011-07-20