Chemical equilibrium conversion of the tert - amyl - methyl - ether synthesis in the presence of n - pentane, tetrahydrofuran, or benzene / Vincent Liebert in Industrial & engineering chemistry research, Vol. 49 N° 9 (Mai 2010)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 49 N° 9 (Mai 2010) . - pp. 4412-4419 Titre : Chemical equilibrium conversion of the tert - amyl - methyl - ether synthesis in the presence of n - pentane, tetrahydrofuran, or benzene Type de document : texte imprimé Auteurs : Vincent Liebert, Auteur ; Torben Hector, Auteur ; Jürgen Gmehling, Auteur Année de publication : 2010 Article en page(s) : pp. 4412-4419 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Chemical equilibrium Résumé : The chemical equilibrium conversion of the reversible liquid-phase etherification of isoamylene with methanol to tert-amyl-methyl-ether using Amberlyst 36 as catalyst was investigated in a temperature range from 312.15 to 354.15 K. The experiments were also carried out in the presence of n-pentane, tetrahydrofuran, or benzene to investigate the influence of different inert solvents on the equilibrium conversion. From the results the standard enthalpy and standard Gibbs energy of reaction have been determined. The experimental conversions have been compared with the predicted conversions assuming ideal and nonideal behavior. For the predictions, tabulated standard thermodynamic properties at 298.15 in the ideal gas state (ΔHf0, ΔGf0), vapor pressures Pis, and standard molar heat capacities cp0 in the liquid phase have been used. The required activity coefficients were calculated with the help of the Wilson model or predicted using the group-contribution method modified UNIFAC (Dortmund). ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=22732929 [article] Chemical equilibrium conversion of the tert - amyl - methyl - ether synthesis in the presence of n - pentane, tetrahydrofuran, or benzene [texte imprimé] / Vincent Liebert, Auteur ; Torben Hector, Auteur ; Jürgen Gmehling, Auteur . - 2010 . - pp. 4412-4419. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 9 (Mai 2010) . - pp. 4412-4419 Mots-clés : Chemical equilibrium Résumé : The chemical equilibrium conversion of the reversible liquid-phase etherification of isoamylene with methanol to tert-amyl-methyl-ether using Amberlyst 36 as catalyst was investigated in a temperature range from 312.15 to 354.15 K. The experiments were also carried out in the presence of n-pentane, tetrahydrofuran, or benzene to investigate the influence of different inert solvents on the equilibrium conversion. From the results the standard enthalpy and standard Gibbs energy of reaction have been determined. The experimental conversions have been compared with the predicted conversions assuming ideal and nonideal behavior. For the predictions, tabulated standard thermodynamic properties at 298.15 in the ideal gas state (ΔHf0, ΔGf0), vapor pressures Pis, and standard molar heat capacities cp0 in the liquid phase have been used. The required activity coefficients were calculated with the help of the Wilson model or predicted using the group-contribution method modified UNIFAC (Dortmund). ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=22732929

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