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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">10.18412/1816-0387-2018-4-57-63</article-id><article-id custom-type="elpub" pub-id-type="custom">catal-543</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 ХИМИЧЕСКОЙ И НЕФТЕХИМИЧЕСКОЙ ПРОМЫШЛЕННОСТИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>CATALYSIS IN CHEMICAL AND PETROCHEMICAL INDUSTRY</subject></subj-group></article-categories><title-group><article-title>Гидрирование СО2 в суб- и сверхкритических условиях на катализаторе 15% Fe/SiO2</article-title><trans-title-group xml:lang="en"><trans-title>Hydrogenation of CO2 over 15% Fe/SiO2 Catalyst under Sub- and Supercritical Conditions</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>Евдокименко</surname><given-names>Н. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Evdokimenko</surname><given-names>N. D.</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>Ким</surname><given-names>К. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Kim</surname><given-names>K. O.</given-names></name></name-alternatives><email xlink:type="simple">ctls@kalvis.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Капустин</surname><given-names>Г. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Kapustin</surname><given-names>G. I.</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>Давшан</surname><given-names>Н. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Davshan</surname><given-names>N. A.</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>Кустов</surname><given-names>А. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Kustov</surname><given-names>A. L.</given-names></name></name-alternatives><email xlink:type="simple">ctls@kalvis.ru</email><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт органической химии имени Н.Д. Зелинского РАН (ИОХ РАН), Москва</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Zelinsky Institute of Organic Chemistry RAS, Moscow</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Московский государственный университет имени М.В. Ломоносова (МГУ)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Lomonosov Moscow State University (MSU)</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Институт органической химии имени Н.Д. Зелинского РАН (ИОХ РАН), Москва; Московский государственный университет имени М.В. Ломоносова (МГУ)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Zelinsky Institute of Organic Chemistry RAS, Moscow; Lomonosov Moscow State University (MSU)</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2018</year></pub-date><pub-date pub-type="epub"><day>23</day><month>07</month><year>2018</year></pub-date><volume>18</volume><issue>4</issue><fpage>57</fpage><lpage>63</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/543">https://www.catalysis-kalvis.ru/jour/article/view/543</self-uri><abstract><p>Впервые представлены результаты сравнительного исследования гидрирования СО2 в условиях газовой фазы и в сверхкритических условиях для СО2 на катализаторе 15% Fe/SiO2. Реакция исследовалась в диапазоне температур 300–500 °С при атмосферном давлении в газофазных условиях и при давлении 95 атм в сверхкритических условиях. Мольное соотношение Н2 : СО2 составляло 2 : 1. Установлено, что проведение процесса в сверхкритических условиях приводит к уменьшению селективности по СО с 90–95 до 30–50 % во всем диапазоне температур и увеличению (до 60 %) селективности образование углеводородов. В отличие от гидрирования в газовой фазе наблюдается образование спиртов. Методами ТГ-ДТГ-ДТА показано уменьшение количества углеродоподобных отложений на поверхности катализатора в 2,2 раза при проведении процесса гидрирования в сверхкритических условиях. С помощью РФА обнаружено, что на поверхности катализатора в условиях газофазного процесса образуются графитоподобные структуры, чего не наблюдается в сверхкритических условиях. Разработанный катализатор и процесс гидрирования СО2 может быть рекомендован для дальнейшего модифицирования и улучшения свойств катализатора на основе наночастиц железа, который значительно (в 10–100 раз) дешевле известных из литературы катализаторов гидрирования СО2.</p></abstract><trans-abstract xml:lang="en"><p>The results of comparative studies of CO2 hydrogenation over 15% Fe/SiO2 catalyst under sub- and supercritical conditions are presented for the first time. The reaction was studied at 300–500 °C and atmospheric pressure in gas phase and at 95 atm under supercritical conditions. The molar H2 : CO2 ratio was 2 : 1. Under supercritical conditions, the selectivity to CO2 decreased from 90–95 to 30–50 % at all temperatures, while the selectivity to hydrocarbons increased up to 60 %. The reaction under supercritical conditions, unlike gas-phase hydrogenation, produced alcohols. TG-DTG-DTA techniques were used to demonstrate 2.2-fold decrease in the quantity of carbon-like deposits in comparison to that in the gas-phase reaction. XRD studies revealed the formation of graphite-like species on the catalyst surface under gas-phase but not supercritical conditions. The developed process and catalyst for hydrogenation of CO2 can be recommended to be further modified in order to improve the catalyst based on iron nanoparticles that is as expensive as 0.1–0.01 of the known catalysts for CO2 hydrogenation.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>сверхкритический флюид</kwd><kwd>гидрирование</kwd><kwd>диоксид углерода</kwd><kwd>сверхкритические условия</kwd><kwd>катализ</kwd><kwd>железосодержащий катализатор</kwd></kwd-group><kwd-group xml:lang="en"><kwd>supercritical fluid</kwd><kwd>hydrogenation of CO2</kwd><kwd>supercritical conditions</kwd><kwd>catalysis</kwd><kwd>iron-containing catalyst</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">Leitner W. // Acc. Chem. Res. 2002. v. 35 (9). p. 746-756.</mixed-citation><mixed-citation xml:lang="en">Leitner W. // Acc. Chem. 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