CIESC Journal

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基于元素组成的含多个反应混合物的反应共沸点的充分必要条件

林金清a,b; 李浩然a; 韩世钧a   

  1. a Chemistry Department, Zhejiang University, Hangzhou 310027, China
    b College of Chemical Engineering, Huaqiao University, Quanzhou 362011, China
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2000-12-18 发布日期:2000-12-18

Necessary and Sufficient Conditions for Reactive Azeotropes in Multi-reaction Mixtures in
Terms of Elemental Composition

LIN Jinqinga,b; LI Haorana; HAN Shijuna   

  1. a Chemistry Department, Zhejiang University, Hangzhou 310027, China
    b College of Chemical Engineering, Huaqiao University, Quanzhou 362011, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2000-12-18 Published:2000-12-18

摘要: Necessary and sufficient conditions for azeotropy in reactive mixtures are derived in terms
of elemental composition, which shows that in the space of elemental compositions, they
take the same functional form as the conditions for azeotropy in non-reactive mixtures. The
production of methyl tert-butyl ether (MTBE) is taken as an example. It is found that there
are a “pseudo” intermediate-boiling ternary reactive azeotrope at p = 101.325 kPa and two
“real” ternary reactive azeotropas at p = 101.325 Pa. The introduced elemental
compositions also reduce the dimensionality of the phase diagrams and provide a natural set
of variables for visualization of phase behavior.

关键词: reactive azeotropy;necassary and sufficient condition;multi-reactive mixture;phase and chemical equilibrium

Abstract: Necessary and sufficient conditions for azeotropy in reactive mixtures are derived in terms
of elemental composition, which shows that in the space of elemental compositions, they
take the same functional form as the conditions for azeotropy in non-reactive mixtures. The
production of methyl tert-butyl ether (MTBE) is taken as an example. It is found that there
are a “pseudo” intermediate-boiling ternary reactive azeotrope at p = 101.325 kPa and two
“real” ternary reactive azeotropas at p = 101.325 Pa. The introduced elemental
compositions also reduce the dimensionality of the phase diagrams and provide a natural set
of variables for visualization of phase behavior.

Key words: reactive azeotropy, necassary and sufficient condition, multi-reactive mixture, phase and chemical equilibrium