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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">chemicallytech</journal-id><journal-title-group><journal-title xml:lang="en">Fine Chemical Technologies</journal-title><trans-title-group xml:lang="ru"><trans-title>Тонкие химические технологии</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2410-6593</issn><issn pub-type="epub">2686-7575</issn><publisher><publisher-name>MIREA – Russian Technological University (RTU MIREA).</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.32362/2410-6593-2017-12-3-44-51</article-id><article-id custom-type="elpub" pub-id-type="custom">chemicallytech-92</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>THEORETICAL BASIS OF CHEMICAL TECHNOLOGY</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ТЕОРЕТИЧЕСКИЕ ОСНОВЫ ХИМИЧЕСКОЙ ТЕХНОЛОГИИ</subject></subj-group></article-categories><title-group><article-title>SEPARATION OF MIXTURES By COMBINING RECTIFICATION AND FRACTIONAL CRySTALLIZATION PROCESSES</article-title><trans-title-group xml:lang="ru"><trans-title>РАЗДЕЛЕНИЕ СМЕСЕЙ ПУТЕМ СОЧЕТАНИЯ ПРОЦЕССОВ РЕКТИФИКАЦИИ И ФРАКЦИОННОЙ КРИСТАЛЛИЗАЦИИ</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Носов</surname><given-names>Г. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Nosov</surname><given-names>G. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор технических наук, профессор кафедры процессов и аппаратов химической технологии им. Н.И. Гельперина</p><p>119571, Россия, Москва, пр-т Вернадского, д. 86</p></bio><bio xml:lang="en"><p>Moscow, 119571 Russia</p></bio><email xlink:type="simple">nosovga@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Михайлов</surname><given-names>М. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Mikhailov</surname><given-names>M. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>аспирант кафедры процессов и аппаратов химической технологии им. Н.И. Гельперина</p><p>119571, Россия, Москва, пр-т Вернадского, д. 86</p></bio><bio xml:lang="en"><p>Moscow, 119571 Russia</p></bio><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Абсаттаров</surname><given-names>А. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Absattarov</surname><given-names>A. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>старший научный сотрудник</p><p>105005, Россия, Москва, ул. Радио, д. 14., стр. 1</p></bio><bio xml:lang="en"><p>Moscow 105005, Russia</p></bio><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Московский технологический университет (Институт тонких химических технологий)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Moscow Technological University (Institute of Fine Chemical Technologies)</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ООО «ВНИИОС-наука»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>LLC «VNIIOS-nauka»</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2017</year></pub-date><pub-date pub-type="epub"><day>28</day><month>06</month><year>2017</year></pub-date><volume>12</volume><issue>3</issue><fpage>44</fpage><lpage>51</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Nosov G.A., Mikhailov M.V., Absattarov A.I., 2017</copyright-statement><copyright-year>2017</copyright-year><copyright-holder xml:lang="ru">Носов Г.А., Михайлов М.В., Абсаттаров А.И.</copyright-holder><copyright-holder xml:lang="en">Nosov G.A., Mikhailov M.V., Absattarov A.I.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://www.finechem-mirea.ru/jour/article/view/92">https://www.finechem-mirea.ru/jour/article/view/92</self-uri><abstract><p>Various options of separation of binary mixtures by combining the processes of fractional crystallization and rectification are considered. The base mixture, depending on its composition, can be initially directed to the rectification stage or to one of the stages of separated components crystallization using the proposed variants. The flow diagrams of integrated heat exchanging systems and schemes involving open and closed type heat pumps under consideration for the determination of ways of reducing energy consumption of the coupled processes were suggested. These solutions enable improving the processes energy efficiency. In addition, the analysis of the effect of the composition and temperature of the initial mixture, the temperature of fractionation at the crystallization stage, the composition of distillates and bottom products on the separation parameters was carried out. It was found that when the initial mixture is fed to the stage of crystallization of one of the components, the energy costs for carrying out the process under consideration are usually lower than when the initial mixture is fed to the rectification stage. It is shown that using a combination of fractional crystallization and rectification processes can significantly expand the possible separation range and improve the technical and economic characteristics of the separation process.</p></abstract><trans-abstract xml:lang="ru"><p>Рассмотрены различные варианты разделения бинарных смесей путем сочетания процессов фракционной кристаллизации и ректификации. При использовании предлагаемых вариантов исходная смесь в зависимости от ее состава может быть первоначально направлена на стадию ректификации или же на одну из стадий кристаллизации разделяемых компонентов. Для того, чтобы снизить затраты энергии на проведение рассматриваемых сопряженных процессов, предложены схемы с организацией рекуперативного теплообмена между потоками, а также схемы с использованием тепловых насосов закрытого и открытого типа. Данные приемы позволяют увеличить энерго-эффективность таких процессов. Кроме того, проведен анализ влияния состава и температуры исходной смеси, температуры фракционирования на стадии кристаллизации, составов дистиллятов и кубовых остатков на параметры разделения. Установлено, что при подаче исходной смеси на стадию кристаллизации одного из компонентов энергетические затраты на проведение рассматриваемого процесса обычно ниже, чем при подаче исходной смеси на стадию ректификации. Показано, что использование сочетания процессов фракционной кристаллизации и ректификации позволяет существенно расширить диапазоны возможного разделения и увеличить технико-экономические показатели процесса разделения.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>кристаллизация</kwd><kwd>ректификация</kwd><kwd>тепловые насосы</kwd><kwd>рекуперация тепла</kwd><kwd>сопряженные процессы</kwd><kwd>энергетические затраты</kwd></kwd-group><kwd-group xml:lang="en"><kwd>crystallization</kwd><kwd>rectification</kwd><kwd>heat pumps</kwd><kwd>heat recovery</kwd><kwd>coupled processes</kwd><kwd>energy costs</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Clasen H. Optimale Kombination von Kristallisation und Rektifikation zur Trennung nicht - isomerierbarer Isomerenqemischen // Chemie Ing. Techn. 1967. B. 39. Heft 22. 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