Vapor-Liquid Equilibrium in Extractive Distillation of the Acetone/Methanol System Using Water as Entrainer and Pressure Reduction

被引：9

作者：

Botia, Diana C. ^{[1
]}

Riveros, Diana C. ^{[1
]}

Ortiz, Pablo ^{[1
]}

Gil, Ivan D. ^{[2
]}

Sanchez, Oscar F. ^{[1
]}

机构：

[1] Univ Los Andes, Dept Ingn Quim, Grp Diseno Prod & Proc, Bogota, Colombia

[2] Univ Nacl Colombia, Dept Ingn Quim & Ambiental, Grp Ingn Sistemas Proc, Bogota, Colombia

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 2010年 / 49卷 / 13期

关键词：

ACETONE-METHANOL; EXPERIMENTAL-VERIFICATION; TERNARY-SYSTEM; SALT; PREDICTION; SIMULATION; MIXTURE; KPA;

D O I：

10.1021/ie901702h

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Displacement of the azeotropic composition of acetone/methanol system by using water as entrainer has been studied for different solvent:feed molar ratios (S/F = 1.0, 2.5, and 3.0) combined with pressure reduction, at 75.0 kPa. The vapor-liquid equilibrium data were compared to ASPEN Plus simulations using Wilson, NRTL, and UNIQUAC models. To determine the composition of the liquid and vapor phases, headspace-gas chromatography was used. For a solvent:feed molar ratio of 1.0 was obtained a complete azeotrope The obtained relative volatilities between 1.6 and 3.2 were for the assayed S/F ratios. Experimental data were well-represented by simulation with the UNIQUAC model, obtaining a vapor molar composition and temperature mean error of 0.009-0.027 and 0.80-1.70 K, respectively.

引用

页码：6176 / 6183

页数：8

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