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.
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