摘要
本文在测定 ＨＦＣ１５２ａ／ＨＣＦＣ１４１ｂ和 ＨＦＣ１３４ａ／ＨＣＦＣ１４１ｂ 二元气体水合物相平衡数据的基础上［３］，建立二元混合气体水合物计算模型和方法。利用 Ｗｉｌｓｏｎ活度系数理论和Ｌａｎｇｍｕｉｒ等温吸附理论建立了水合物相各组成的逸度计算模型，并依据水合物中客体分子的逸度平衡条件进行了混合水合物的相平衡计算。计算结果正确地表征混合气体水合物相平衡特性，并与实验数据较精确吻合。
In this paper, a new calculation model for guest species activity in mixed hydrates has been developed based on Wilson's equation and Langmuir adsorption isotherm theory. Based on the method, the phase equilibrium property of HFC152a/HCFC141b and HFC134a/HCFC14lb refrigerant hydrates are calculated with existing experimental data and simple hydrate properties. The calculation results are fitted very well with the experiment data. It is shown that the calculation model can well depict the phase equilibrium characteristics for both azeotropic and non-azeotropic gas hydrates.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
2000年第3期269-272,共4页
Journal of Engineering Thermophysics
基金
国家自然科学基金!59836230
