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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">10.32362/2410-6593-2017-12-5-34-46</article-id><article-id custom-type="elpub" pub-id-type="custom">chemicallytech-114</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>ACETONE-CHLOROFORM-n-BUTANOL MIXTURE SEPARATION BY THE EXTRACTIVE DISTILLATION IN SCHEMES OF TWO-OUTLET COLUMNS</article-title><trans-title-group xml:lang="ru"><trans-title>РАЗДЕЛЕНИЕ СМЕСИ АЦЕТОН-ХЛОРОФОРМ-н-БУТАНОЛ С ПРИМЕНЕНИЕМ ЭКСТРАКТИВНОЙ РЕКТИФИКАЦИИ В СХЕМАХ ИЗ ДВУХОТБОРНЫХ КОЛОНН</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>Анохина</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Anokhina</surname><given-names>E. А.</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат технических наук, доцент кафедры химии и технологии основного органического синтеза</p><p>119571, Россия, Москва, пр-т Вернадского, д. 86</p></bio><bio xml:lang="en"><p>Ph.D. (Engineering), Associate Professor, Chair of Chemistry and Technology of General Organic Synthesis</p><p>86, Vernadskogo Pr., Moscow, 119571, Russia</p></bio><email xlink:type="simple">anokhina.ea@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>Грачева</surname><given-names>И. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Gracheva</surname><given-names>I. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>студент кафедры химии и технологии основного органического синтеза</p><p>119571, Россия, Москва, пр-т Вернадского, д. 86</p></bio><bio xml:lang="en"><p>Student, Chair of Chemistry and Technology of General Organic Synthesis</p><p>86, Vernadskogo Pr., 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>Акишин</surname><given-names>А. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Akishin</surname><given-names>A. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>аспирант кафедры химии и технологии основного органического синтеза</p><p>119571, Россия, Москва, пр-т Вернадского, д. 86</p></bio><bio xml:lang="en"><p>Postgraduate Student, Chair of Chemistry and Technology of General Organic Synthesis</p><p>86, Vernadskogo Pr., 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>Тимошенко</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Timoshenko</surname><given-names>А. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор технических наук, профессор кафедры химии и технологии основного органического синтеза</p><p>119571, Россия, Москва, пр-т Вернадского, д. 86</p></bio><bio xml:lang="en"><p>Dr.Sc. (Engineering), Professor, Chair of Chemistry and Technology of General Organic Synthesi</p><p>86, Vernadskogo Pr., Moscow, 119571, Russia</p></bio><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Московский технологический университет (Институт тонких химических технологий имени М.В. Ломоносова)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Moscow Technological University (M.V. Lomonosov Institute of Fine Chemical Technologies)</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>10</month><year>2017</year></pub-date><volume>12</volume><issue>5</issue><fpage>34</fpage><lpage>46</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Anokhina E.А., Gracheva I.M., Akishin A.Y., Timoshenko А.V., 2017</copyright-statement><copyright-year>2017</copyright-year><copyright-holder xml:lang="ru">Анохина Е.А., Грачева И.М., Акишин А.Ю., Тимошенко А.В.</copyright-holder><copyright-holder xml:lang="en">Anokhina E.А., Gracheva I.M., Akishin A.Y., Timoshenko А.V.</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/114">https://www.finechem-mirea.ru/jour/article/view/114</self-uri><abstract><p>Extractive distillation of acetone-chloroform-n-butanol mixture with dimethylformamide in two-outlet column schemes is considered. Optimal parameters according to the total energy consumption criterion in the column boilers of the three extractive distillation schemes for this mixture separation are determined. Calculations were carried out in a design-verification version at 1000 kg/hr of the initial mixture with the concentrations of acetone, chloroform and n-butanol 71.3, 14.7 and 14.0% wt., respectively. Dimethylformamide concentration in the entrainer flow was set to 99.99 wt%. The main component concentration in the product stream was 99.9 wt% for chloroform and 99.5 wt%. for acetone and n-butanol. The parameters to be optimized were: the number of plates in the columns, the temperature and flow rate of dimethylformamide, reflux ratios, distillate flow rates and the position of the feed plates in the columns. The optimum location of the entrainer feed plate was found additionally in the extractive distillation column. Separation product concentrations served as the constraints of the optimization. The optimization was carried out in Aspen Plus with the use of a combination of Sensitivity Analysis and sequential quadratic programming (SQP). It is established that scheme P5 has the lowest energy consumption. In the first column of this scheme, n-butanol is separated, and then the azeotrope-forming components (acetone and chloroform) are separated by the extractive distillation subsystem. Energy consumptions for two other schemes (P1 and P2), in which dimethylformamide is used in the first column of the sequence, are significantly higher than for scheme P5 - by 69.1% and by 49.3%, respectively. The data obtained will be used: to synthesize and optimize the extractive distillation schemes including the subsystems with coupled thermal and material flows to separate the acetone-chloroform-n-butanol mixture; to estimate the energy efficiency of those schemes and to obtain the criterion for estimating the energy efficiency of systems with coupled thermal and material flows in the extractive distillation of multicomponent mixtures.</p></abstract><trans-abstract xml:lang="ru"><p>Рассмотрена экстрактивная ректификация смеси ацетон-хлороформ-н-бутанол с диметилформамидом в схемах из двухотборных колонн. Определены оптимальные по критерию суммарных энергетических затрат в кипятильниках колонн параметры трех схем экстрактивной ректификации данной смеси. Расчеты проводились в проектно-поверочном варианте на 1000 кг/ч исходной смеси с концентрацией ацетона, хлороформа и н-бутанола 71.3, 14.7 и 14.0% масс., соответственно. Концентрацию диметилформамида в потоке экстрактивного агента задавали равной 99.99% масс. Концентрация основного компонента в продуктовых потоках составляла 99.9% масс. для хлороформа и 99.5% масс. для ацетона и н-бутанола. Оптимизируемыми параметрами являлись: число тарелок в колоннах, температура и расход диметилформамида, флегмовые числа, потоки дистиллята и положение тарелок питания в колоннах. Для колонны экстрактивной ректификации дополнительно находили оптимальный уровень ввода экстрактивного агента. Ограничения на оптимизацию - качество продуктов разделения. Оптимизация проводилась в Aspen Plus с применением сочетания методов Sensitivity Analysis и последовательного квадратичного программирования (SQP). Установлено, что наименее энергоемким вариантом разделения является схема П5, в первой колонне которой осуществляется отделение н-бутанола, а азеотропообразующие компоненты (ацетон и хлороформ) затем разделяются в комплексе экстрактивной ректификации. Для двух других схем (П1 и П2), в которых диметилформамид применяется в первой по ходу разделения колонне, энергозатраты существенно выше, чем для схемы П5 - на 69.1% и на 49.3%, соответственно. Полученные данные в дальнейшем будут использованы для синтеза и оптимизации схем экстрактивной ректификации данной смеси, включающих комплексы со связанными тепловыми и материальными потоками, а также для оценки энергетической эффективности применения последних для разделения смеси ацетон-хлороформ-н-бутанол и получения критерия оценки энергетической эффективности использования комплексов со связанными тепловыми и материальными потоками в технологиях экстрактивной ректификации многокомпонентных смесей.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>ректификация</kwd><kwd>тройные смеси</kwd><kwd>флегмовое число</kwd><kwd>минимальный паровой поток</kwd><kwd>внутреннее энергосбережение при ректификации</kwd></kwd-group><kwd-group xml:lang="en"><kwd>energy saving</kwd><kwd>extractive distillation</kwd><kwd>schemes of two-outlet columns</kwd><kwd>optimization</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">Тимошенко А.В., Анохина Е.А., Тимофеев В.С. 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