The Resource Development for CH_4 Hydrates

CH_4水合物资源开发

• 批准号: 07555322
• 负责人: MAE Shinji
• 金额: $ 6.27万
• 依托单位: HOKKAIDO UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 1995
• 资助国家: 日本
• 起止时间: 1995 至 1996
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07555322/
• 关键词: Hydrate; CH_4; ICE; Microwave; 分子動力学; メタンハイドレート; ラマン分光測定; メタン分子占有率; 分子内運動

CO_2 hydrates and CH_4 hydrated were formed from gas (guest) and water (host) mixtures with controlling the formation rate to analyze Rarnan intensities of both guest and host molecules. The intensity ratio of both guest and host molecules between the gas-hydrate phase and the reference phase represented the density ratio of both molecules in teh gas hydrate. It was found that the guest-host molecular density ratio of gas hydrates formed under an non-equilibrium condition was different from that formed under equilibrium condition, and it fluctuated with formation conditions.The formation reaction rates and the dissociation reaction rates were studied at pure-water/pure-methane-gas reaction system, and the equations of both reaction were derived considering temperature and methane gas mole concentration. Also effects of the stirring rate on formation reaction were investigated. The formation reaction rate was in proportion to l/T and the dissociation reaction rate was inverse proportion to l/T.The activation energy of formation and dissociation reactions were determined as -140kJ/mol and 114kJ/mol respectively.

通过控制气体（客体）和水（主体）混合物的生成速率，生成CO2水合物和CH 4水合物，分析客体分子和主体分子的拉南强度。客体分子和主体分子在水合物相与参比相中的强度比代表了客体分子和主体分子在水合物中的密度比。研究了纯水/纯甲烷-气体反应体系中水合物的生成反应速率和分解反应速率，推导了考虑温度和甲烷气体摩尔浓度的反应方程。考察了搅拌速率对生成反应的影响。生成反应速率与l/T成正比，解离反应速率与l/T成反比，生成反应和解离反应的活化能分别为-140kJ/mol和114 kJ/mol。

项目成果

T.Uchida, A.Takagi, T.Hirano, H.Narita, J.Kawabata, T.Hondoh and S.Mae: "Measurements on guest-host molecular density ratio of CO_2 and CH_4 hydtates by Ramanspectroscopy" Proc.of 2nd Int.Conf.on Natural Gas Hydrates. 335-339 (1996)

T.Uchida、A.Takagi、T.Hirano、H.Narita、J.Kawabata、T.Hondoh 和 S.Mae：“通过拉曼光谱测量 CO_2 和 CH_4 水合物的宾主分子密度比”Proc.of 2nd Int

内田努: "人工メタンハイドレートのラマン分光測定" 地質学雑誌. 102(11). 983-988 (1996)

Tsutomu Uchida：“人造甲烷水合物的拉曼光谱测量”地质杂志 102(11) (1996)。

T.uchida, T.Hondoh, S.Mae, P.Duval and V.Ya.Lipenkov: "Effects of temperature and pressur on the transformation rate from air bubbles to air-hydrate crystals in ice sheets" Ann.Glaciology. 20. 143-147 (1995)

T.uchida、T.Hondoh、S.Mae、P.Duval 和 V.Ya.Lipenkov：“温度和压力对冰盖中气泡向空气水合物晶体转化率的影响”Ann.Glaciology。

T.Uchida, T.Hirano, S.Mae and H.Narita: "Raman spectroscopie analysis on artificial mettane hydrate (in Japanese)" J.Geological Soc.Jpn.102. 983-988 (1996)

T.Uchida、T.Hirano、S.Mae 和 H.Narita：“人造甲烷水合物的拉曼光谱分析（日语）”J.Geological Soc.Jpn.102。

T. Uchida: "Effects of temperature and pressure on the transformation rate from air bubbles to air-hydrate crystals in ice sheets." Ann. Glaciology. 20. 143-147 (1995)

T. Uchida：“温度和压力对冰盖中气泡向空气水合物晶体转化速率的影响。”