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Masamichi Kodera,Kosuke Watanabe,Maxence Lassiège,Saman Alavi,Ryo Ohmura 한국공업화학회 2020 Journal of Industrial and Engineering Chemistry Vol.81 No.-
Interfacial tension is one of the most important physical properties for high-precision simulations todevelop the methods of preventing plugging of pipelines in the oil and natural gas industry. This paperreports experimental data with the pendant drop method for the interfacial tension of adecane + methane + water system at temperatures between 278.2 K to 298.2 K and pressures up to10 MPa. The data show that in this temperature range the interfacial tension in the decane + methane+ water system decreases almost linearly with increasing temperature. The results also show that byincreasing the pressure of methane, the interfacial tension decreases from 53.98 mN m 1 to50.23 mN m 1 at 283.2 K and 52.23 mN m 1 to 49.74 mN m 1 at 288.2 K. The nature of the methanepressure dependence of the interfacial tension changes for pressures above around 2.00 MPa. Theinterfacial tension decreases with the pressure up to 2.00 MPa, but has no pressure dependence above2.00 MPa. It may be inferred that the decane/water interface is saturated with methane at pressuresaround 2.00 MPa and at higher pressure the interfacial tension is no longer affected by the presence ofmethane.
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