Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/26081
Type: Artigo de periódico
Title: Salt effect in the solubility of hydrogen in n-alcohols at pressures up to 10 MPa and temperatures up to 498.15 K
Author: d Angelo, J. V.H.
Francesconi, A.Z.
Abstract: Gas-liquid solubility of hydrogen in methanol and ethanol systems with electrolytes was studied in the temperature range from 305.15 K to 498.15 K and pressures from 4 to 10 MPa. The experimental method used was the Total Pressure Method, which eliminates sampling and analysis of the phases, determining their composition at equilibrium using the following experimental data: moles of solute and solvent in the system; pressure, temperature and volume of the system at equilibrium; together with thermodynamic equations for fluid-phase equilibria. The salts used were lithium chloride and potassium acetate. The solubility of hydrogen increases with increasing temperature and pressure and the presence of salts causes a decrease in the solubility of hydrogen, when compared with the results of systems without salts, characterizing a salting-out effect, which is greater in conditions of lower temperature and pressure, specially for potassium acetate.
Subject: Solubility
hydrogen
alcohols
electrolytes
high pressures
Editor: Brazilian Society of Chemical Engineering
Rights: aberto
Identifier DOI: 10.1590/S0104-66322000000400014
Address: http://dx.doi.org/10.1590/S0104-66322000000400014
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322000000400014
Date Issue: 1-Dec-2000
Appears in Collections:Unicamp - Artigos e Outros Documentos

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