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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">10.18412/1816-0387-2023-2-73-82</article-id><article-id custom-type="elpub" pub-id-type="custom">catal-885</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>КАТАЛИЗ В НЕФТЕПЕРЕРАБАТЫВАЮЩЕЙ ПРОМЫШЛЕННОСТИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>СATALYSIS IN PETROLEUM REFINING INDUSTRY</subject></subj-group></article-categories><title-group><article-title>Влияние условий тестирования катализаторов второй стадии гидрокрекинга на время достижения их стационарной активности</article-title><trans-title-group xml:lang="en"><trans-title>The effect of testing conditions on the time of establishing a steady-state activity of the catalysts for the second hydrocracking step</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>Голубев</surname><given-names>И. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Golubev</surname><given-names>I. 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>Дик</surname><given-names>П. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Dik</surname><given-names>P. P.</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>Казаков</surname><given-names>M. O.</given-names></name><name name-style="western" xml:lang="en"><surname>Kazakov</surname><given-names>M. O.</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>Климов</surname><given-names>О. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Klimov</surname><given-names>O. 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>Носков</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Noskov</surname><given-names>A. S.</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">Институт катализа им. Г.К. Борескова СО РАН (ИК СО РАН), Новосибирск<country>Россия</country></aff><aff xml:lang="en">Boreskov Institute of Catalysis SB RAS, Novosibirsk<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>30</day><month>03</month><year>2023</year></pub-date><volume>23</volume><issue>2</issue><fpage>73</fpage><lpage>82</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; LLC "KALVIS", 2023</copyright-statement><copyright-year>2023</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/885">https://www.catalysis-kalvis.ru/jour/article/view/885</self-uri><abstract><p>В данной работе были проведены испытания катализаторов второй стадии гидрокрекинга при различных условиях, приводящих к сокращению времени, необходимого для достижения стационарного уровня активности. Испытания проводились на лабораторном стенде в условиях (температура, давление, объемная скорость подачи сырья – ОСПС), приближенных к промышленным и характерным для второй стадии гидрокрекинга. Показано, что введение дополнительной предварительной стадии в начале испытаний при повышенных значениях температуры и ОСПС, а также использование раствора диметилдисульфида в декане в качестве сульфидирующей смеси позволяет значительно сократить время эксперимента. Подобраны условия предварительной стадии, при которых сохраняется селективность катализатора по отношению к дизельной фракции.</p></abstract><trans-abstract xml:lang="en"><p>Catalysts for the second hydrocracking step were tested under different conditions in order to reduce the time of establishing their steadystate activity. The tests were carried out at a laboratory bench under the conditions close to industrial operation and typical of the second hydrocracking step. The introduction of an additional step at the onset of testing with the increased temperature and feed space velocity as well as the use of a dimethyl disulfide solution in decane as a sulfurization mixture were shown to considerably reduce the duration of experiment. Conditions of the preliminary step were selected so as to preserve the catalyst selectivity toward the diesel fraction.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>вторая стадия гидрокрекинга</kwd><kwd>катализаторы гидрокрекинга</kwd><kwd>сульфидирование катализаторов</kwd></kwd-group><kwd-group xml:lang="en"><kwd>second hydrocracking step</kwd><kwd>hydrocracking catalysts</kwd><kwd>sulfurization of catalysts</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">Speight J.G. 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