Determination of the equilibrium characteristics of vapor-liquid and liquid-liquid systems as applied to the products of the oxidative ammonolysis of toluene and of ?- and ?-picolines

1976 ◽  
Vol 10 (10) ◽  
pp. 1360-1362
Author(s):  
V. S. Ezhov ◽  
S. N. Golovko ◽  
�. M. Guseinov
Keyword(s):  
Oxidative Ammonolysis ◽  
Liquid Systems ◽  
Vapor Liquid

Systematic errors in equilibrium composition of ternary liquid-liquid systems and their effect on the calculated number of theoretical stages of countercurrent extraction

1988 ◽  
Vol 53 (6) ◽  
pp. 1172-1180
Author(s):  
Ján Dojčanský ◽  
Soňa Bafrncová ◽  
Július Surový
Keyword(s):  
Equilibrium Composition ◽  
Systematic Errors ◽  
Liquid Equilibrium ◽  
Countercurrent Extraction ◽  
Liquid Systems ◽  
Equilibrium Concentrations ◽  
Line Slope ◽  
Tie Line ◽  
Calculated Number

The influence of magnitude of systematic errors in the determination of ternary liquid-liquid equilibrium concentrations on the accuracy of the calculated number of theoretical stages of countercurrent extraction is evaluated on using five hypothetical systems differing in the extent of mutual solubility of components, tie-line slope, and type of binodal curve.

Determination of vapor—liquid equilibrium diagrams of multicomponent systems

2016 ◽  
Vol 70 (12) ◽  
Author(s):  
Leonid Serafimov ◽  
Anastasia Frolkova
Keyword(s):  
Phase Diagram ◽  
Multicomponent Systems ◽  
Liquid Equilibrium ◽  
Vapor Liquid Equilibrium ◽  
Equilibrium Modeling ◽  
Component Systems ◽  
Full Structure ◽  
Concentration Simplex ◽  
Vapor Liquid

AbstractA method for the determination of vapor–liquid phase diagram structure of five-component systems based on the analysis of types and Poincare indexes of singular points of the geometric scan and full structure of the concentration simplex is proposed. Validity of the proposed method was demonstrated by vapor–liquid equilibrium modeling in five-component mixtures: ethanol + water + toluene + butanol + chlorbenzene and acetone + chloroform + ethanol + cyclohexane + water.

Determination of methanol/CO2 and acetonitrile/CO2 vapor-liquid phase equilibria using a variable-volume view cell

1996 ◽  
Vol 123 (1-2) ◽  
pp. 215-230 ◽  
Author(s):  
Tricia S. Reighard ◽  
Stephen T. Lee ◽  
Susan V. Olesik
Keyword(s):  
Liquid Phase ◽  
Phase Equilibria ◽  
Variable Volume ◽  
Vapor Liquid

scholarly journals Determination of Vapor-Liquid Equilibrium from Total Pressure Measurement

1971 ◽  
Vol 14 (4) ◽  
pp. 252-256 ◽  
Author(s):  
Kunio Nagahama ◽  
Seijiro Suda ◽  
Toshikatsu Hakuta ◽  
Mitsuho Hirata
Keyword(s):  
Pressure Measurement ◽  
Total Pressure ◽  
Liquid Equilibrium ◽  
Vapor Liquid Equilibrium ◽  
Vapor Liquid

Determination of Vapor-Liquid Ratio of Motor Gasoline. Sunbury Apparatus

1956 ◽  
Vol 28 (1) ◽  
pp. 99-103 ◽  
Author(s):  
R. L. Gilpin ◽  
F. W. H. Matthews
Keyword(s):  
Liquid Ratio ◽  
Motor Gasoline ◽  
Vapor Liquid

scholarly journals Constant-volume vapor-liquid equilibrium for thermal energy storage: investigation of a new storage condition for solar thermal systems

2021 ◽  
Vol 238 ◽  
pp. 03004
Author(s):  
Abdullah Bamoshmoosh ◽  
Gianluca Valenti
Keyword(s):  
Energy Storage ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Exergy Analysis ◽  
Heat Storage ◽  
Storage Condition ◽  
Liquid Equilibrium ◽  
Liquid Systems ◽  
Transfer Properties ◽  
Vapor Liquid

The sector of thermal energy storage shows a number of alternatives that could have a relevant impact on the future of energy saving as well as renewable energy technologies. Among these, latent heat thermal energy storage technologies show promising results. Technologies that exploit solid-liquid phase change have already been widely proposed, but those technologies show common drawbacks limiting their application, such as high cost, low energy storage density and particularly low heat transfer properties. This work proposes to exploit the liquid-vapor phase transition in closed and constant volumes because it shows higher heat transfer properties. Consequently, the objective is to assess its energy storage performances in target temperature ranges. With respect to previous activity by the authors, this work proposes an exergy analysis of these systems, gives a methodology their deployment, and proposes a comparison between a new storage condition for solar thermal domestic hot water systems exploiting vapor-liquid equilibrium and conventional technologies. The exergy analysis is performed in reduced terms in order to have a generalized approach. Three hypothetical fluids with increasing degree of molecular complexity are considered in order to have a complete overview of the thermodynamic behavior of potential heat storage fluids. The analysis shows that the increased pressure of liquid systems has a major impact on exergy, resulting in vapor-liquid systems having less than 50% of the exergy variation of pressurized liquid systems. This is proven to have no impact on thermal energy storage. For the case study, the proposed methodology indicates that water itself is a strong candidate as a heat storage fluid in the new condition. Comparison shows that the new condition has a higher energy storage capacity at same volume. The useful temperature range is increased by 108% by setting a 10.5% volume vapor fraction at ambient temperature. The resulting improvement gives a 94% higher energy storage, with a maximum operating pressure of the system of less than 5 bar.

scholarly journals A new microebulliometer for the measurement of the vapor–liquid equilibrium of ionic liquid systems

2013 ◽  
Vol 354 ◽  
pp. 156-165 ◽  
Author(s):  
Pedro J. Carvalho ◽  
Imran Khan ◽  
António Morais ◽  
José F.O. Granjo ◽  
Nuno M.C. Oliveira ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Liquid Equilibrium ◽  
Vapor Liquid Equilibrium ◽  
Liquid Systems ◽  
Vapor Liquid
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