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采用带有蓝宝石视窗和磁力搅拌的可变体积高压斧得出了水+甲烷系统的气液相边界曲线和临界曲线.实验温度为433.0-633.0K,实验压力为30.00-300.00MPa.实验确定了甲烷在富水区的亨利系数,结果显示,在433.0-603.0K的温度范围内,此亨利系数随着温度的升高而下降.本文还研究了甲烷+水系统的气液分配比以及偏摩尔溶解焓和偏摩尔溶解熵数据.结果发现,甲烷和水的内聚能密度差别很大.
The gas-liquid boundary curves and critical curves of the water + methane system were obtained by using a variable-volume high-pressure ax with a sapphire window and a magnetic stirrer. The experimental temperature was 433.0-633.0 K and the experimental pressure was 30.00-300.00 MPa. The Henry’s coefficient of methane in the water-rich region shows that the Henry’s coefficient decreases with increasing temperature in the temperature range of 433.0-603.0 K. In addition, the gas-liquid partition ratio of methane + water system and partial molar Enthalpy of solution and partial molar entropy of data.The results show that the cohesive energy density of methane and water varies greatly.