Abstract
The values of sea water vapor pressure (SWVP) and boiling point elevation (BPE) are required in the simulation, design, and optimization of processes in which sea water is used, such as in the mining industry and in a desalination plant. The SWVP is modeled using the model of Cisternas and Lam (CL). The literature on SWVP is reviewed, and several models and SWVP data are selected to assess the CL model using other models that are available in the literature. Two cases are analyzed in the application of CL model: first, the sea water is modeled as a mixture of salt with fixed ionic strength fraction and the capability of CL model to predict the SWVP is analyzed; next, as the second-best option, the sea water is modeled as a pseudo 1:1 electrolyte, which requires a single empirical constant to be set. The CL model is assessed using several models. Two sets of experimental data are used to study the capability of the SWVP models regarding their interpolation, extrapolation, and correlation of the data. The CL model usually gives the best results in terms of the interpolation, extrapolation and correlation of the SWVP. In addition, the application of the CL model to estimate the BPE is shown. An accuracy of 0.03 K was observed in the prediction of the BPE.
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