Clathrate hydrates in the system H2O–Ar at pressures and temperatures up to 30 kbar and 140 °C
Clathrate hydrates in the system H2O–Ar at pressures and temperatures up to 30 kbar and 140 °C
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H2O-Ar 系统中的笼形水合物在压力和温度高达 30 kbar 和 140 °C 的条件下发生水合
DOI：
10.1063/1.480342
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发表时间：
1999
影响因子：
4.4
通讯作者：
J. Schouten
中科院分区：
文献类型：
--
作者：
H. Lotz;J. Schouten
用准等时扫描方法对二元混合物h2o - ar进行了研究，揭示了包合物水合物在高压和高温区域的稳定性范围。结果表明，分解曲线延伸到纯氩的熔化曲线之上，直至纯冰的熔化曲线。在低压下，氩气分解温度随压力先升高后降低，呈现局部最高和最低温度。在较高的压力下，分解曲线的斜率仍然为正，但又经历了三次断裂。已经确定了两个新的四点；在105°C， 20 kbar （Q4）和136°C， 29 kbar （Q5）。在较低区域（低于10 kbar），分解曲线出现两次断裂；在31.5°C, 6.2 kbar （Q2）和37.5°C, 9.6 kbar (Q3)，表明该区域形成了三种不同的包合物结构。在较低压力下，分离两种包合物结构的三相线的位置可以…
Studies of the binary mixture H2O–Ar—by means of a quasi-isochoric scanning method—have revealed the range of stability of clathrate hydrates in the high-pressure and high-temperature region. The results obtained show an extension of the decomposition curve above the melting curve of pure argon and up to the melting curve of pure ice VII. At low pressures the argon decomposition temperature first increases and then decreases with pressure, showing a local maximum and minimum temperature. At higher pressures the slope of the decomposition curve remains positive but undergoes three more breaks. Two new quadruple points have been determined; at 105 °C, 20 kbar (Q4) and at 136 °C, 29 kbar (Q5). In the lower region (below 10 kbar) the decomposition curve shows two breaks; at 31.5 °C, 6.2 kbar (Q2) and at 37.5 °C, 9.6 kbar (Q3), indicating that three different clathrate structures are formed in this region. The positions of the three-phase lines separating the two clathrate structures at lower pressure could be...
DOI：
10.1029/jb091ib05p04673
发表时间：
1986-04-10
期刊：
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH AND PLANETS
影响因子：
--
作者：
MAO, HK;XU, J;BELL, PM
通讯作者：
BELL, PM