Vapor-liquid-liquid phase equilibrium in four-component benzene-heptane-N-methylpyrrolidone-sulfolane system

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• 作者：I. V. Ivanov ; V. A. Lotkhov ; A. Yu. Tikhonov…
• 关键词：liquid ; liquid ; vapor phase equilibrium ; two liquid phases ; mathematical modeling of equilibria liquid ; liquid ; vapor ; extractive distillation ; separating agent ; selectivity ; nonrandom two ; liquid (NRTL) equation
• 刊名：Theoretical Foundations of Chemical Engineering
• 出版年：2015
• 出版时间：March 2015
• 年：2015
• 卷：49
• 期：2
• 页码：125-137
• 全文大小：801 KB
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• 作者单位：I. V. Ivanov (1)
  V. A. Lotkhov (1)
  A. Yu. Tikhonov (1)
  N. N. Kulov (1)
  
  1. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Moscow, Russia
  
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Industrial Chemistry and Chemical Engineering
  Russian Library of Science
  
• 出版者：MAIK Nauka/Interperiodica distributed exclusively by Springer Science+Business Media LLC.
• ISSN：1608-3431

文摘

The liquid-vapor phase equilibrium in four-component benzene-heptane-N-methylpyrrolidone-sulfolane system has been experimentally studied, including in the areas of lamination of the liquid phase. The modeling of liquid-liquid-vapor phase equilibrium in the studied system has been performed using a calculation program compiled based on the nonrandom two-liquid (NRTL) equation. A comparative assessment of the effectiveness of N-methylpyrrolidone, sulfolane, and their mixture as separating agents in the of extractive distillation of benzene-heptane binary mixture has been performed.