TY - JOUR ID - 107432 TI - Prediction of DES’ Vapor Pressure Using a New Corresponding State Model JO - Physical Chemistry Research JA - PCR LA - en SN - 2322-5521 AU - Esmaelizadeh, Freidoon AU - Zarei, Fariba AU - Mousavi, Seyedeh Maryam AU - Vakili-Nezhaad, G.Reza AD - Department of Chemical and Petroleum Engineering, School of Chemical and Petroleum Engineering, Enhanced Oil and Gas Recovery Institute, Advanced Research Group for Gas Condensate Recovery, Shiraz University, Shiraz 7134851154, Iran AD - Petroleum and Chemical Engineering Department, College of Engineering, Sultan Qaboos University, Muscat 123, Oman Y1 - 2020 PY - 2020 VL - 8 IS - 3 SP - 471 EP - 496 KW - Deep eutectic solvents KW - vapor pressure KW - Corresponding state models KW - Equation of state KW - model KW - prediction KW - Pure compounds KW - Aqueous solutions DO - 10.22036/pcr.2020.211346.1707 N2 - Application of deep eutectic solvents in industrial chemical processes are improved over time in last decades. In this work, vapor pressures of 13 classes of DESs (DES 1-13) based on 5 salts and 7 hydrogen bond donors with various combinations of molar ratio were used between 343-393 K. The vapor pressure of the pure and aqueous solutions of DESs was calculated by different equations of state, which are based on “φ-φ” and "γ-φ" approachs. Additionally, Voutsas and Wagner models as corresponding-state models were modified to predict the vapor pressure of the pure and aqueous solutions of DESs. The total average absolute relative deviations of the Modified-Voutsas and Modified-Wagner models for the vapor pressure calculation of the pure and aqueous solutions of DESs were 7.03, 9.08 % and 5.47, 7.15 %, respectively. Moreover, the validity of vapor pressure calculation using the two modified models was checked with the aid of a linear equation for the average specific heat capacity of different DESs (23 classes of DESs) between 278.15-353.15 K. Results showed that the total average absolute relative deviations of the specific heat capacity of DESs using the Modified-Voutsas and Modified-Wagner models from the experimental data were 4.128 and 4.056 %, respectively. UR - https://www.physchemres.org/article_107432.html L1 - https://www.physchemres.org/article_107432_9257b30949277e081f11d4fa992175f1.pdf ER -