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Excess enthalpies and (vapour  +  liquid) equilibrium for (oxygenated additive  + n-alkane)

✍ Scribed by Ding-Yu Peng; Zhaohui Wang; George C. Benson; Benjamin C.-Y. Lu

Publisher: Elsevier Science
Year: 2001
Tongue: English
Weight: 239 KB
Volume: 33
Category: Article
ISSN: 0021-9614
DOI: 10.1006/jcht.2000.0720

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✦ Synopsis

Micro-calorimetric measurements of excess molar enthalpies H E m are reported for {ethyl tert-butyl ether (ETBE, ethyl 1,1-dimethylethyl ether) + n-hexane, n-heptane, or n-octane}. These H E m values, together with those reported previously for tert-amyl methyl ether (TAME, 1,1-dimethylpropyl methyl ether) + n-alkane, all measured at T = 298.15 K, were used to predict (vapour + liquid) equilibria v.l.e. for (ETBE, or TAME + n-alkane) and (ETBE, or TAME + n-alkanes) at isobaric/isothermal conditions. The predictions were made using the excess Gibbs free energy model of Liebermann and Fried. The predicted v.l.e. values are in good agreement with the literature values, and are comparable to reported correlation results obtained from four activity coefficient models (Wohl, Wilson, NRTL, and UNIQUAC).

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Excess enthalpies and (vapour &#xa0;+&#xa0; liquid) equilibrium for (oxygenated additive &#xa0;+&#xa0;n-alkane)

✦ Synopsis

Excess enthalpies and (vapour + liquid) equilibrium for (oxygenated additive + n-alkane)