Extractive distillation of 2-methoxy-2-methylpropane plus ethanol using 1-butanol as entrainer: Equilibria and simulation

被引：13

作者：

Arce, A ^{[1
]}

Rodil, E ^{[1
]}

Soto, A ^{[1
]}

机构：

[1] Univ Santiago de Compostela, Dept Chem Engn, E-15706 Santiago, Spain

来源：

CANADIAN JOURNAL OF CHEMICAL ENGINEERING | 1999年 / 77卷 / 06期

关键词：

vapour-liquid equilibria; simulation; MTBE; ethanol; 1-butanol;

D O I：

10.1002/cjce.5450770608

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Isobaric (101.32 kPa) liquic-vapour equilibrium data for the system 1-butanol + ethanol + 2-methoxy-2-methylpropane (MTBE) were determined and fitted with Wilson, NRTL and UNIQUAC equations, and their prediction by various group contribution methods (ASOG and modified and unmodified UNIFAC methods) was examined. The NRTL equation was used to calculate, by simulation, the influence of plate number and entrainer/feed flow ratio on the quantity and composition of the distillate afforded by extractive distillation of azeotropic MTBE + ethanol using 1-butanol as the entrainer. The quantity of distillate and its MTBE content both increased with plate number, and the quantity of distillate also increased with entrainer/feed flow rate ratio.

引用

页码：1135 / 1140

页数：6

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