摘要
本文以扰动理论为基础建立了一个新的电解质溶液的状态方程.该方程考虑了分子—分子、分子—离子及离子—离子的二元交互作用,并被用来关联弱电解质体系NH_3-CO_2-H_2O的汽液平衡.该方程只有三个二元交互作用参数,其中两个是可调参数,比其他模型的参数少得多,而关联结果则与其他模型相仿,关联误差在实验误差的范围之内.取得了令人满意的结果.
A new equation of state for electrolyte solutions is presented based on perturbation theory. Molecule-molecule, ion-molecule and ion-ion interactions are incorporated into the equation of state. The equation covers the entire fluid density range from zero to liquid-like densities. Therefore, it can be used for both phases in vapor-liquid equilibrium calculations.For mixtures without elec-trolytes the equation resembles the equation developed by Hu et al. (1984). The equation was used to correlate the vapor-liquid equilibrium for ammonia-carbon dioxide-water system with fewer parameters than other existing models. Satisfactory results were obtained, and they were equivalent to, or better than those from other models.
出处
《化工学报》
EI
CAS
CSCD
北大核心
1990年第2期162-170,共9页
CIESC Journal
基金
博士点基金
石油部基金
