The viscosity of the binary vapor mixture methanol–triethylamine at low densities and in the saturated vapor phase of the vapor–liquid equilibrium

2011 ◽  
Vol 303 (2) ◽  
pp. 126-133
Author(s):  
V. Teske ◽  
E. Vogel
Keyword(s):  
Vapor Phase ◽  
Saturated Vapor ◽  
Vapor Mixture ◽  
Liquid Equilibrium ◽  
Vapor Liquid Equilibrium ◽  
Vapor Liquid

scholarly journals Experimental and an electrolyte non-random two-liquid model to predict the vapor–liquid equilibrium of CO2 in aqueous solutions of diethylenetriamine

2020 ◽  
pp. 174751982096417
Author(s):  
Ruilei Zhang ◽  
Yandong Tang ◽  
Weifeng Shan ◽  
Haijun Liu ◽  
Haijun Li ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Saturated Vapor ◽  
Physical Parameters ◽  
Liquid Equilibrium ◽  
Absolute Deviation ◽  
Vapor Liquid Equilibrium ◽  
Liquid Theory ◽  
Equilibrium Data ◽  
Experimental Values ◽  
Vapor Liquid

The absorption and desorption data of CO2 in aqueous solutions with a mass fraction of 10% and 20% of diethylenetriamine are measured at 313.15, 343.15, 373.15, and 393.15 K. The electrolyte non-random two-liquid theory is developed using Aspen V9.0 to correlate and predict the vapor–liquid equilibrium of CO2 in aqueous diethylenetriamine solutions. The model predicted the heat capacity and saturated vapor pressure data of diethylenetriamine, the mixed heat of a diethylenetriamine–H2O binary system, and the vapor–liquid equilibrium data of a diethylenetriamine–H2O–CO2 ternary system. The physical parameters and the interaction parameters of the model system are calculated. The model predicted CO2 solubility showing a 10% average absolute deviation from experimental data. The calculated values of the model are basically consistent with the experimental values.

Studies of Vapor-Liquid Equilibrium of Meta-Xylylenediamine-Aniline System

2014 ◽  
Vol 936 ◽  
pp. 1007-1011
Author(s):  
Xiao Hong Wang
Keyword(s):  
Experimental Data ◽  
Saturated Vapor ◽  
Calculated Data ◽  
Model Parameters ◽  
Vapor Pressures ◽  
Wilson Equation ◽  
Liquid Equilibrium ◽  
Vapor Liquid Equilibrium ◽  
Vle Data ◽  
Vapor Liquid

The saturated vapor pressures of m-xylylenediamine (MXDA) were measured with the static method at the temperatures between 150-180°C, and the Antoine parameters of MXDA were regressed. The Vapor-Liquid Equilibrium (VLE) data of aniline-MXDA system at pressure of 4 kPa were determined. The VLE data were tested by the integral method proposed by Herington and showed to meet thermodynamic consistency. Wilson Equation was used to correlate the experimental data and the model parameters were determined. The calculated data from Wilson Equation agreed well with the experimental data of the above binary system.

Phase vapor–liquid equilibrium for the solutions of diethyl selenide and diethylzinc

2021 ◽  
Vol 4 (2) ◽  
pp. 10-16
Author(s):  
S. I. Gerasymchuk ◽  
◽  
I. P. Poliuzhyn ◽  
H. V. Melnyk ◽  
Yu. P. Pavlovskyi ◽  
...  
Keyword(s):  
Saturated Vapor Pressure ◽  
Saturated Vapor ◽  
Enthalpy Of Mixing ◽  
Separation Coefficient ◽  
Excess Functions ◽  
Mathematical Software ◽  
Liquid Equilibrium ◽  
Vapor Liquid Equilibrium ◽  
Semi Empirical ◽  
Vapor Liquid

Using a semi-empirical Wilson’s model, the vapor-liquid equilibrium in the “diethylzinc - diethyl selenide” system is described: the activity coefficients of the solution components, the separation coefficient, the excess functions of the solution (HE, GE, TSE) are calculated, and isothermal P-X diagrams are obtained. The parameters of the Wilson’s model were calculated on the basis of our data on measuring the temperature dependence for saturated vapor pressure of high-purity samples of diethylzinc, diethyl selenide and their equimolecular solution using iterations from the mathematical software package Mathsad 14. Peculiarities of intermolecular interaction in the “diethylzinc – diethyl selenide” system and the presence of a negative deviation from Raoul's law have been found. The studied system is homogeneous in the whole concentration range. The concentration dependence of the enthalpy of mixing is alternating for the researched temperature range (280-340 K).

ChemInform Abstract: VAPOR-LIQUID EQUILIBRIUM OF (METHANOL + A HEPTANONE) AT 323.15 K

1984 ◽  
Vol 15 (21) ◽  
Author(s):  
R. G. RUBIO ◽  
J. ARACIL ◽  
M. DIAZ PENA ◽  
J. A. R. RENUNCIO
Keyword(s):  
Liquid Equilibrium ◽  
Vapor Liquid Equilibrium ◽  
Vapor Liquid
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