收稿日期: 2009-03-10
修回日期: 2009-03-25
网络出版日期: 2009-04-10
基金资助
中国科学院重要方向项目(编号: KZCX2-YW-330);国家自然科学基础人才培养基金冰川冻土学特殊学科点(编号:J0630966) 联合资助.
Experimental Study on the Isobaric Decomposition of Methane Hydrate
Received date: 2009-03-10
Revised date: 2009-03-25
Online published: 2009-04-10
王英梅 吴青柏 张鹏 展静 蒋观利 . 冰点以下甲烷水合物等压分解实验研究[J]. 天然气地球科学, 2009 , 20(2) : 244 -248 . DOI: 10.11764/j.issn.1672-1926.2009.02.244
Experiments on methane hydrate isobaric decomposition were carried out with different temperatures under 2.25MPa, 2.08MPa and 1.88MPa. The effect of temperature driving force on the decomposition process and self\|preservation of the methane hydrate was discussed. During the isobaric decomposition of methane hydrate, the effect of temperature driving force on the decomposition rate can be classified into two parts. If the temperature driving force ΔT>|T0|, there's a positive correlation between decomposition rate and the ΔT.If the temperature driving force ΔT|T0|,decomposition rate has a weak correlation with the ΔT.And also, self\|preservation effect of methane hydrate is obvious. Further analysis shows that the curve of decomposition rate\|temperature is similar to “V” shape regularity obtained by Stern et al. under the normal atmospheric pressure.
［1］ 陈宝宏,韩璐,李良君,等.天然气水合物相关技术最新研究进展［J］.河南石油, 2004, 18(3): 63 -65.
［2］ 刘士鑫.气田生产中天然气水合物防治的实验研究及预测［D］.成都:西南石油学院硕士学位论文, 2005.
［3］ 胡玉峰.天然气水合物及相关新技术研究进展［J］.天然气工业, 2001, 21(5): 84 -86.
［4］ 孙长宇.甲烷水合物恒温恒压分解过程研究［J］.地球化学， 2003，32（2）：112 -116.
［5］ Kamath V A，Holder G D ，Angert P F.Three phase interfacial heat transfer during the dissociation of pmpane hydrates ［J］. Chem.Eng.Sci.，1984,39(10):1435 -1442.
［6］ Kim H C,Bishnoi P R,Heidemann R A, et al.Kinetics of methane hydrate decomposition ［J］．Chem.Eng.Sci., 1987,42 (7):1645 -1653.
［7］ Kazunari Ohgaki．Decomposition of CO2、CH4 and CO2 -CH4 Mixed Gas Hydrates［J］.J. Chem. Eng. Japan, 1997, 30(2):310 -314.
［8］ Stern L A, Circone S, Kirby S H, et al. Anomalous preservation of pure methane hydrate at 1 atm［J］. Journal of Physical Chemistry B, 2001, 105:1756 -1762.
［9］ Gudmundsson J S, Parlaktuna M, Levik O I,et al. Laboratory for Continuous Production of Natural Gas Hydrates［C］. Annals of the New York Academy of Sciences, 2000: 851 -912.
［10］ 展静.冰颗粒粒径对冰点以下甲烷水合物自保护效应的影响 [J ].天然气地球科学，2008,19（4）:577 -580.
［11］ Peters D J. A Study of Hydrate Dissociation in Pipelines by the Method of Two -Sided Depressurization: Experiment and Model ［D］. Master of Science Thesis, Colorado School of Mines,1999.
［12］ Durham W B, Heard H C,Kirby S H. Experimental deformation of polycrystalline H2O ice at high pressure and low temperature:preliminary results [J ]. J. Geophys. Res.,1983, 88:377 -392.
［13］ Durham W B, Kirby S H, Stern L A. Flow of ices in the ammonia -water system [J ].Journal of Geophysical Research, 1993,98 (B10): 17667 - 17682.
［14］ Stern L A, Kirby S H, Durham W B. Laboratory synthesis of pure methane hydrate suitable for measurement of physical properties and decomposition behavior [C ]//Max M D. Natural Gas Hydrate：Oceanic and Permafrost Environments.Dordrecht:Kluwer, 2000:232 -348.
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