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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="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">catal</journal-id><journal-title-group><journal-title xml:lang="ru">Катализ в промышленности</journal-title><trans-title-group xml:lang="en"><trans-title>Kataliz v promyshlennosti</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1816-0387</issn><issn pub-type="epub">2413-6476</issn><publisher><publisher-name>LLC "KALVIS"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.18412/1816-0387-2018-6-55-60</article-id><article-id custom-type="elpub" pub-id-type="custom">catal-573</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="ru"><subject>ИНЖЕНЕРНЫЕ ПРОБЛЕМЫ. ЭКСПЛУАТАЦИЯ И ПРОИЗВОДСТВО</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>INDUSTRY ENGINEERING PROBLEMS. OPERATION AND PRODUCTION</subject></subj-group></article-categories><title-group><article-title>Дегидрирование метилбутенов в изопрен: сообщение 3. Сравнительный математический анализ дегидрирования метилбутенов в изопрен в аксиальном и радиальном реакторах</article-title><trans-title-group xml:lang="en"><trans-title>Dehydration of Methylbutenes to Isoprene. Part 3: Comparative Mathematical Analysis of Methylbutene Dehydrogenation in Axial and Radial Reactors</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>Гилмурахманов</surname><given-names>Б. Ш.</given-names></name><name name-style="western" xml:lang="en"><surname>Gilmurakhmanov</surname><given-names>B. Sh.</given-names></name></name-alternatives><email xlink:type="simple">ctls@kalvis.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>Уртяков</surname><given-names>П. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Urtyakov</surname><given-names>P. V.</given-names></name></name-alternatives><email xlink:type="simple">ctls@kalvis.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>Назаров</surname><given-names>М. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Nazarov</surname><given-names>M. V.</given-names></name></name-alternatives><email xlink:type="simple">ctls@kalvis.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>Рощина</surname><given-names>О. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Roshchina</surname><given-names>O. S.</given-names></name></name-alternatives><email xlink:type="simple">ctls@kalvis.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>Ламберов</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Lamberov</surname><given-names>A. A.</given-names></name></name-alternatives><email xlink:type="simple">ctls@kalvis.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Казанский (Приволжский) федеральный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Kazan Federal University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2018</year></pub-date><pub-date pub-type="epub"><day>21</day><month>11</month><year>2018</year></pub-date><volume>18</volume><issue>6</issue><fpage>55</fpage><lpage>60</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; LLC "KALVIS", 2018</copyright-statement><copyright-year>2018</copyright-year><copyright-holder xml:lang="ru">LLC "KALVIS"</copyright-holder><copyright-holder xml:lang="en">LLC "KALVIS"</copyright-holder><license xlink:href="https://www.catalysis-kalvis.ru/jour/about/submissions#copyrightNotice" xlink:type="simple"><license-p>https://www.catalysis-kalvis.ru/jour/about/submissions#copyrightNotice</license-p></license></permissions><self-uri xlink:href="https://www.catalysis-kalvis.ru/jour/article/view/573">https://www.catalysis-kalvis.ru/jour/article/view/573</self-uri><abstract><p>С использованием математической модели, описывающей процесс дегидрирования метилбутенов в изопрен, проведен сравнительный анализ энергетической эффективности двух вариантов модернизации: 1) система, состоящая из двух последовательно расположенных аксиальных реакторов с неподвижным слоем катализатора и 2) адиабатический радиальный реактор с неподвижным слоем катализатора. Математический анализ проводился с целью определения зависимости выхода Y и селективности S от количества тепловой энергии Q, подводимой паром для каждого случая. Для двухреакторной системы наилучшие показатели (Y = 53,1 % и S = 82,9 %) достигаются при Q = 9,0 МДж/кг и времени контактирования t = 0,8 с. Однако в радиальном реакторе лучшие эксплуатационные характеристики (Y = 42,0 % и S = 86,1 %) наблюдаются при Q = 7,8 МДж/кг и t = 0,8 с. Из этого следует, что для проведения реакции дегидрирования метилбутенов в радиальном реакторе требуется подвести на 13,0 % меньше тепловой энергии, чем при использовании аксиальных реакторов.</p></abstract><trans-abstract xml:lang="en"><p>A mathematical model of the process of dehydrogenation of methylbutenes to isoprene was used for comparative analysis of energetic efficiency of two versions of modernization: (1) a system of consecutively connected two axial reactors with a fixed catalyst beds, and (2) adiabatic radial reactor with fixed catalyst bed. The purpose was to determine the dependence of yield (Y) and selectivity (S) to the target product on the heat energy Q supplied with vapor. In the two-reactor system, the best parameters (Y = 53.1 % and S = 82.9 %) were achieved at Q = 9.0 MJ/kg and contact time t = 0.8 s. At the same time, in the radial reactor the best performance (Y = 42.0 % and S = 86.1 %) was observed at Q = 7.8 MJ/kg and t = 0.8 s. Hence, the radial reactor consumes less heat energy (by 13.0 %) than the radial reactor for methylbutene dehydrogenation.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>дегидрирование метилбутенов</kwd><kwd>изопрен</kwd><kwd>математическая модель</kwd><kwd>аксиальный реактор</kwd><kwd>радиальный реактор</kwd></kwd-group><kwd-group xml:lang="en"><kwd>dehydrogenation of methylbutenes</kwd><kwd>isoprene</kwd><kwd>mathematical model</kwd><kwd>axial reactor</kwd><kwd>radial reactor</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">Крылов О.В. Гетерогенный катализ: Учебное пособие для вузов. М.: Академкнига, 2004.</mixed-citation><mixed-citation xml:lang="en">Крылов О.В. Гетерогенный катализ: Учебное пособие для вузов. 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