Liquid-liquid equilibrium data for ternary systems of water + acetic acid+ acetate esters at 293.2 K and 303.2 K and ≈ 95 kPa

2018 ◽  
Vol 463 ◽  
pp. 34-47 ◽  
Author(s):  
Laerti Reis Roque ◽  
Rafaela Rocha Pinto ◽  
Leonardo Hadlich de Oliveira ◽  
Sarita Cândida Rabelo
Keyword(s):  
Acetic Acid ◽  
Ternary Systems ◽  
Liquid Equilibrium ◽  
Acetate Esters ◽  
Equilibrium Data ◽  
Acetic Acid Acetate

scholarly journals Vapor-liquid Equilibrium in the Ternary Systems Acetic Acid + Water + (Xylose or Glucose)

2021 ◽  
Author(s):  
Nadia Galeotti ◽  
Jakob Burger ◽  
Hans Hasse
Keyword(s):  
Thin Film ◽  
Molecular Weight ◽  
Acetic Acid ◽  
Ternary Systems ◽  
Low Molecular Weight ◽  
Liquid Equilibrium ◽  
Vapor Liquid Equilibrium ◽  
Equilibrium Data ◽  
Acetic Acid Water ◽  
Vapor Liquid

Hydrolysates of lignocellulosic biomass are aqueous solutions containing, among others, sugars andacetic acid. They are concentrated by evaporation. Only little is known on the influence of the sugars onthe volatility of the low-molecular-weight components in those mixtures. Therefore, in the present workthe isobaric vapor-liquid equilibrium of the systems (acetic acid (AA) þ water (W) þ xylose (X)) and(acetic acid (AA) þ water (W) þ glucose (G)) was studied at 20.0 kPa in a thin film evaporator. The resultsshow that the volatility of acetic acid is increased by the sugars and that xylose and glucose have asimilar influence. The vapor-liquid equilibrium data were correlated using the NRTL model for describingthe liquid phase non-ideality and taking the dimerization of acetic acid in the vapor phase into account.

Liquid-liquid equilibrium data and thermophysical properties for ternary systems composed of water, acetic acid and different solvents

2019 ◽  
Vol 482 ◽  
pp. 48-63 ◽  
Author(s):  
Leonardo Hadlich de Oliveira ◽  
Grazielle Patrícia Morgado ◽  
Rafael Boni ◽  
Laerti Reis Roque ◽  
Rafaela Rocha Pinto ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Thermophysical Properties ◽  
Ternary Systems ◽  
Liquid Equilibrium ◽  
Equilibrium Data

Vapour-liquid equilibrium in the ternary system cyclohexane-acetic acid-propionic acid

1989 ◽  
Vol 54 (11) ◽  
pp. 2840-2847 ◽  
Author(s):  
Ivona Malijevská ◽  
Alena Maštalková ◽  
Marie Sýsová
Keyword(s):  
Acetic Acid ◽  
Ternary System ◽  
Propionic Acid ◽  
Activity Coefficients ◽  
Error Propagation ◽  
Analytical Techniques ◽  
Liquid Equilibrium ◽  
Consistency Test ◽  
Propagation Law ◽  
Equilibrium Data

Isobaric equilibrium data (P = 101.3 kPa) for the system cyclohexane-acetic acid-propionic acid have been measured by two different analytical techniques. Activity coefficients calculated by simultaneous solving of equations for the chemical and phase equilibria were subjected to a consistency test based on inaccuracies determined from the error propagation law, and were correlated by Wilson’s equation. The activity coefficients measured were compared with those calculated from binary vapour-liquid equilibrium data and with values predicted by the UNIFAC method.

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