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Features of distillation separation of multicomponent mixtures

https://doi.org/10.32362/2410-6593-2022-17-2-87-106

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Abstract

Objectives. To improve the process of developing energy-efficient flowsheets for the distillation separation of multicomponent aqueous and organic mixtures based on a comprehensive study of the phase diagram structures, including those in the presence of additional selective substances.

Methods. Thermodynamic-topological analysis of phase diagrams; modeling of phase equilibria in the AspenTech software package using the equations of local compositions: Non-Random Two Liquid and Wilson; computational experiment to determine the column parameters for separation flowsheets of model and real mixtures of various nature.

Results. The fractionation conditions of the origin multicomponent mixture due to the use of sharp distillation, pre-splitting process, extractive distillation with individual and binary separating agents were revealed. The columns operation parameters and the energy consumption of the separation flowsheets ensuring the achievement of the required product quality with minimal energy consumption were determined.

Conclusions. Using the original methods developed by the authors earlier and based on the generalization of the results obtained, new approaches to the synthesis of energy-efficient multicomponent mixtures separation flowsheets were proposed. The provisions that form the methodological basis for the development of flowsheets for the separation of multicomponent mixtures and supplement the standard flowsheet synthesis plan with new procedures were formulated.

About the Authors

A. K. Frolkova
MIREA – Russian Technological University (M.V. Lomonosov Institute of Fine Chemical Technologies)
Russian Federation

Alla K. Frolkova, Dr. Sci. (Eng.), Professor, Head of the Department of Chemistry and Technology of Basic Organic Synthesis

Scopus Author ID 35617659200; Researcher ID G-7001-2018

86, Vernadskogo pr., Moscow, 119571


Competing Interests:

The authors declare no conflicts of interest



A. V. Frolkova
MIREA – Russian Technological University (M.V. Lomonosov Institute of Fine Chemical Technologies)
Russian Federation

Anastasiya V. Frolkova, Cand. Sci. (Eng.), Associate Professor, Department of Chemistry and Technology of Basic Organic Synthesis

Scopus Author ID 12782832700; Researcher ID N-4517-2014

86, Vernadskogo pr., Moscow, 119571


Competing Interests:

The authors declare no conflicts of interest



V. M. Raeva
MIREA – Russian Technological University (M.V. Lomonosov Institute of Fine Chemical Technologies)
Russian Federation

Valentina M. Raeva, Cand. Sci. (Eng.), Associate Professor, Department of Chemistry and Technology of Basic Organic Synthesis

Scopus Author ID 6602836975; Researcher ID C-8812-2014

86, Vernadskogo pr., Moscow, 119571


Competing Interests:

The authors declare no conflicts of interest



V. I. Zhuchkov
MIREA – Russian Technological University (M.V. Lomonosov Institute of Fine Chemical Technologies)
Russian Federation

Valery I. Zhuchkov, Cand. Sci. (Eng.), Associate Professor, Department of Chemistry and Technology of Basic Organic Synthesis

Scopus Author ID 57198290642; Researcher ID AAA-3117-2020

86, Vernadskogo pr., Moscow, 119571


Competing Interests:

The authors declare no conflicts of interest



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1. Main stages of the organic compound production technology development
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Type Исследовательские инструменты
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Indexing metadata
  • The conditions of fractionation of the origin multicomponent mixture due to the use of sharp distillation, pre-splitting process, and extractive distillation were revealed.
  • New approaches to the synthesis of energy-efficient multicomponent mixtures separation flowsheets were proposed.
  • Technological flowsheets of separation of acetone–chloroform–ethanol (isopropanol)–water, ethanol–cyclohexane–chloroform–water, ethyl acetate–methyl ethyl ketone–cyclohexane–isopropanol, methanol–tert-butanol–methyl-tret-butyl ether–water mixtures were developed, the columns static parameters were determined.

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Frolkova A.K., Frolkova A.V., Raeva V.M., Zhuchkov V.I. Features of distillation separation of multicomponent mixtures. Fine Chemical Technologies. 2022;17(2):87-106. https://doi.org/10.32362/2410-6593-2022-17-2-87-106

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