chemicallytechFine Chemical TechnologiesТонкие химические технологии2410-65932686-7575MIREA – Russian Technological University (RTU MIREA).10.32362/2410-6593-2022-17-2-87-106chemicallytech-1819Research ArticleTHEORETICAL BASIS OF CHEMICAL TECHNOLOGYТЕОРЕТИЧЕСКИЕ ОСНОВЫ ХИМИЧЕСКОЙ ТЕХНОЛОГИИFeatures of distillation separation of multicomponent mixturesОсобенности ректификационного разделения многокомпонентных смесейhttps://orcid.org/0000-0002-9763-4717ФролковаА. К.FrolkovaA. K.

Фролкова Алла Константиновна, д.т.н., профессор, заведующий кафедрой химии и технологии основного органического синтеза

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

119571, Москва, пр-т Вернадского, д. 86

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

frolkova@gmail.comhttps://orcid.org/0000-0001-5675-5777ФролковаА. В.FrolkovaA. V.

Фролкова Анастасия Валериевна, к.т.н., доцент, кафедра химии и технологии основного органического синтеза

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

119571, Москва, пр-т Вернадского, д. 86

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

frolkova_nastya@mail.ruhttps://orcid.org/0000-0002-5664-4409РаеваВ. М.RaevaV. M.

Раева Валентина Михайловна, к.т.н., доцент кафедры химии и технологии основного органического синтеза

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

119571, Москва, пр-т Вернадского, д. 86

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

raevalentina1@gmail.comhttps://orcid.org/0000-0002-5729-3356ЖучковВ. И.ZhuchkovV. I.

Жучков Валерий Иванович, к.т.н., старший научный сотрудник, доцент кафедры химии и технологии основного органического синтеза

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

119571, Москва, пр-т Вернадского, д. 86

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

v-zhuchkov@yandex.ruМИРЭА – Российский технологический университет (Институт тонких химических технологий им. М.В. Ломоносова)РоссияMIREA – Russian Technological University (M.V. Lomonosov Institute of Fine Chemical Technologies)Russian Federation20223105202217287106Copyright © Frolkova A.K., Frolkova A.V., Raeva V.M., Zhuchkov V.I., 20222022Фролкова А.К., Фролкова А.В., Раева В.М., Жучков В.И.Frolkova A.K., Frolkova A.V., Raeva V.M., Zhuchkov V.I.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://www.finechem-mirea.ru/jour/article/view/1819Objectives

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

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

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

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.

Цели

Цели. Совершенствование процесса разработки энергоэффективных схем ректификационного разделения многокомпонентных водных и органических смесей на основе комплексного исследования структуры фазовой диаграммы, в том числе в присутствии селективных дополнительных веществ.

Методы

Методы. Термодинамико-топологический анализ фазовых диаграмм; моделирование фазовых равновесий в программном комплексе AspenTech с использованием уравнений локальных составов Non-Random Two Liquid, Вильсона; вычислительный эксперимент по определению параметров работы колонн схем разделения модельных и реальных смесей разной природы.

Результаты

Результаты. Выявлены условия фракционирования исходной многокомпонентной смеси за счет использования промежуточного заданного разделения, предварительного расслаивания, экстрактивной ректификации с индивидуальными и бинарными разделяющими агентами. Определены параметры работы колонн и энергозатраты схем разделения, обеспечивающие достижение требуемого качества продуктов при минимальных энергозатратах.

Выводы

Выводы. С использованием разработанных ранее авторами оригинальных методик и на основе обобщения полученных результатов предложены новые подходы к синтезу энергоэффективных схем разделения многокомпонентных смесей. Сформулированы положения, которые составляют методологическую основу разработки принципиальных схем разделения многокомпонентных смесей и дополняют типовой план синтеза схем новыми процедурами.

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The authors declare that there are no conflicts of interest present.