Presentations -

二酸化炭素分離に適したクラスレートハイドレートの探索と物性測定

Ohmura Ryo

化学工学会第46回秋季大会, 

2014.09

, 

Oral presentation (invited, special), 公益社団法人 化学工学会

Crystallographic structure and thermodynamic stability of clathrate hydrates formed with halogen-containing guests

Ryo Ohmura

2012 "Natural Gas Hydrate Systems" Gordon Research Conference (Ventura, CA) , 

2012.03

, 

Oral presentation (invited, special)

Crystal growth of clathrate hydrates in hydrophobic-guest fluid + liquid-water systems

Ohmura Ryo

ACS 241st National Meeting (Anaheim, CA, USA) , 

2011.03

, 

Oral presentation (invited, special), American Chemical Society

Understanding thermodynamics of clathrate hydrates toward energy/environment technology innovations

Ohmura Ryo

21st IUPAC International Conference on Chemical Thermodynamics Conference (ICCT-2010) (Tsukuba) , 

2010.08

, 

Oral presentation (invited, special), IUPAC

Combustion Characteristics of Methane Hydrate in a Laminar Boundary Layer

Yuki Nakmura, Ryoji Katsuki, Takeshi Yokomori, Ryo Ohmura, Toshihisa Ueda, Masahiro Takahashi, Toru Iwasaki and Kazuo Uchida

6th International Conference on Gas Hydrates (ICGH 2008) (Vancouver) , 

2008.07

, 

Poster presentation

Dissociation of Methane Hydrate Crystals in a Porous Medium: A Pore Scale Visual/Observational Study

Daisuke Katsuki, Ryo Ohmura, Takao Ebinuma and Hideo Narita

6th International Conference on Gas Hydrates (ICGH 2008) (Vancouver) , 

2008.07

, 

Poster presentation

Fire Extinction Utilizing Carbon Dioxide Hydrate

Takashi Hatakeyama, Eisuke Aida, Takeshi Yokomori, Ryo Ohmura and Toshihisa Ueda

6th International Conference on Gas Hydrates (ICGH 2008) (Vancouver) , 

2008.07

, 

Poster presentation

Gibbs Ensemble Monte Carlo Simulations for Methane/Liquid-Water and Methane/Hydrate Phase Equilibrium

Keisuke Minatoya, Ryo Ohmura, Amadeu K. Sum and Kenji Yasuoka

6th International Conference on Gas Hydrates (ICGH 2008) (Vancouver) , 

2008.07

, 

Poster presentation

Hydrate Slurry Formation from Cyclopentane-in-Water Emulsions

Masahiro Nakajima, Ryo Ohmura, Jun-ichi Ochiai, Makoto Ozaki, Tomohiro Ogawa and Yasuhiko H. Mori

6th International Conference on Gas Hydrates (ICGH 2008) (Vancouver) , 

2008.07

, 

Oral presentation (general)

Phase equilibrium for clathrate hydrates formed with methane, ethane, propane or carbon dioxide at temperatures below the freezing point of water

Keita Yasuda and Ryo Ohmura

6th International Conference on Gas Hydrates (ICGH 2008) (Vancouver) , 

2008.07

, 

Poster presentation

Stability of Methane, Fluoromethane and Chloromethane Clathrate Hydrates Investigated by the First Principle Calculations

Akira Hori, Satoshi Takeya, Ryo Ohmura and Tsutomu Uchida

6th International Conference on Gas Hydrates (ICGH 2008) (Vancouver) , 

2008.07

, 

Poster presentation

Statistical-Thermodynamics Modeling of Clathrate Hydrate Forming Systems Suitable as Working Media of a Hydrate-Based Refrigeration System

Fumihito Takeuchi, Ryo Ohmura and Kenji Yasuoka

6th International Conference on Gas Hydrates (ICGH 2008) (Vancouver) , 

2008.07

, 

Poster presentation

Raman Spectroscopic Measurements of Fluoromethane Clathrate Hydrates

Tsutomu Uchida, Ryo Ohmura and Akira Hori

6th International Conference on Gas Hydrates (ICGH 2008) (Vancouver) , 

2008.07

, 

Poster presentation

Thermodynamic Simulations of Isobaric Hydrate Forming Operations for Natural Gas Storage

Naotaka Imura, Hiroyuki Ogawa, Tatsuya Miyoshi, Ryo Ohmura and Yasuhiko H. Mori

6th International Conference on Gas Hydrates (ICGH 2008) (Vancouver) , 

2008.07

, 

Poster presentation

Fundamental Characteristics of a Methanol Reforming by a Partial Oxidation Reaction

Yasufumi Tokunaga, I.N.G Wardana, Ryo Ohmura, Masahiko Mizomoto, Toshihisa Ueda, Yukio Naruse, Shigeru Inami and Eiji Kato

Eighth International Symposium on Transport Phenomena (韓国) , 

2007.08

, 

Oral presentation (general)

Solubility of Methane in Water at High-Pressure/Low-Temperature Conditions by Gibbs Ensemble Monte Carlo Simulation

Keisuke Minatoya, Tatsuya Miyoshi, Ryo Ohmura and Kenji Yasuoka

Eighth Asian Thermophysical Property Conference (福岡) , 

2007.08

, 

Poster presentation

Predicting thermodynamic stability of clathrate hydrates based on molecular-dynamics simulations and its confirmation by phase-equilibrium measurements

Tatsuya Miyoshi, Ryo Ohmura and Kenji Yasuoka

11th International Conference on the Physics and Chemistry of Ice (Bremerhaven, Germany) , 

2006.07

, 

Poster presentation

Formation and Growth of Structure-H Hydrate Crystals on a Water Drop in Contact with Methane Gas and Large-Molecule Guest-Substance Liquid

Ryo Ohmura, Sadatoshi Matsuda, Sinya Ito, Takao Ebinuma and Hideo Narita

5th International Conference on Gas Hydrates (Trondheim, Norway) , 

2005.06

, 

Oral presentation (general)

Phase equilibrium measurements and crystallographic analyses on structure-H type gas hydrate formed from CH4-CO2-neohexane-water system

Tsutomu Uchida, Ryo Ohmura, Ikuko Y. Ikeda, Yasushi Kamata, Jiro Nagao and Satoshi Takeya

5th International Conference on Gas Hydrates (Trondheim, Norway) , 

2005.06

, 

Poster presentation

Structure analysis of clathrate hydrate crystals systhesized from water + methane and large-molecule substances

Satoshi Takeya, Ryo Ohmura, Akira Hori and Tsutomu Uchida

5th International Conference on Gas Hydrates (Trondheim, Norway) , 

2005.06

, 

Poster presentation