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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">vestift</journal-id><journal-title-group><journal-title xml:lang="ru">Известия Национальной академии наук Беларуси. Серия физико-технических наук</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of the National Academy of Sciences of Belarus. Physical-technical series</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1561-8358</issn><issn pub-type="epub">2524-244X</issn><publisher><publisher-name>The Republican Unitary Enterprise Publishing House "Belaruskaya Navuka"</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">vestift-239</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>ЭНЕРГЕТИКА, ТЕПЛО- И МАССООБМЕН</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>POWER ENGINEERING, HEAT AND MASS TRANSFER</subject></subj-group></article-categories><title-group><article-title>ЭКСПЕРИМЕНТАЛЬНОЕ ИССЛЕДОВАНИЕ КИНЕТИКИ КАРБОНИЗАЦИИ ОКСИДА КАЛЬЦИЯ В ИЗОТЕРМИЧЕСКИХ УСЛОВИЯХ</article-title><trans-title-group xml:lang="en"><trans-title>EXPERIMENTHAL STUDY OF CALCIUM OXIDE CARBONATION KINETICS UNDER ISOTHERMAL 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>Малько</surname><given-names>М. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Malko</surname><given-names>M. V.</given-names></name></name-alternatives><email xlink:type="simple">ipe@bas-net.by</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>Василевич</surname><given-names>С. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Vasilevich</surname><given-names>S. V.</given-names></name></name-alternatives><email xlink:type="simple">ipe@bas-net.by</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>Богач</surname><given-names>В. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Bahach</surname><given-names>U. M.</given-names></name></name-alternatives><email xlink:type="simple">ipe@bas-net.by</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>Дегтеров</surname><given-names>Д. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Degterov</surname><given-names>D. V.</given-names></name></name-alternatives><email xlink:type="simple">ipe@bas-net.by</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт энергетики НАН Беларуси</institution></aff><aff xml:lang="en"><institution>Institute of Power Engineering of the National Academy of Sciences of Belarus</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2016</year></pub-date><pub-date pub-type="epub"><day>04</day><month>08</month><year>2016</year></pub-date><volume>0</volume><issue>2</issue><fpage>66</fpage><lpage>73</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Малько М.В., Василевич С.В., Богач В.Н., Дегтеров Д.В., 2016</copyright-statement><copyright-year>2016</copyright-year><copyright-holder xml:lang="ru">Малько М.В., Василевич С.В., Богач В.Н., Дегтеров Д.В.</copyright-holder><copyright-holder xml:lang="en">Malko M.V., Vasilevich S.V., Bahach U.M., Degterov D.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://vestift.belnauka.by/jour/article/view/239">https://vestift.belnauka.by/jour/article/view/239</self-uri><abstract><p>Обсуждаются результаты экспериментальных исследований кинетики реакции СаО + СО2 = СаСО2 , выполненные в изотермических условиях при температурах 773, 873, 973 и 1123 К. В опытах пиролизный газ, содержащий примерно 14,5 мас.% СО2 , подавался в реакционную зону, в которой размещался образец отожженного доломита. Степень протекания реакции определялась по приросту массы образца, выдерживаемого при постоянной температуре. Анализ полученных данных показал, что кинетика карбонизации СаО характеризуется наличием типичных для гетерогенных процессов периодов, таких как индукция, ускорение и замедление. Для малых степеней превращения стадией, определяющей скорость суммарного процесса, является химическое взаимодействие СаО и СО2 . Для данной стадии на основании выполненного исследования определены энергия активации (29,6 кДж/моль) и предэкспоненциальный фактор аррениусовской зависимости (0,36·10–1 мин-1 или 6,0·10–3 с-1).</p><p> </p></abstract><trans-abstract xml:lang="en"><p>The results of experimental studies of kinetics of the reaction CaO + CO2 = CaСО2 performed at isothermal conditions at temperatures of 773, 873, 973 and 1123 K are being discussed. Pyrolysis gas, containing approximately 14.5% vol. of CO2 was fed during the experiments into the reaction zone, which housed the sample of calcinated dolomite. The extent of the reaction was determined from the weight gain of the sample kept at a constant temperature. Analysis of the data has shown that the kinetics of the CaO carbonation reaction is characterized by typical periods of heterogeneous processes, such as periods of induction, reaction acceleration and deceleration. The rate-determining step of the overall process for small degrees of conversion is a chemical reaction of CaO and CO2 . Activation energy and pre-exponential factor of the Arrhenius equation were estimated for this stage on the basis of the performed study. They are 29.6 kJ / mol and 0.36·10–1 min-1 (6.0·10–3 s-1 ) respectively.</p><p> </p></trans-abstract><kwd-group xml:lang="ru"><kwd>пиролизный газ</kwd><kwd>диоксид углерода</kwd><kwd>доломит</kwd><kwd>кинетика карбонизации</kwd><kwd>энергия активации</kwd><kwd>предэкспоненциальный фактор</kwd></kwd-group><kwd-group xml:lang="en"><kwd>pyrolysis gas</kwd><kwd>carbon dioxide</kwd><kwd>dolomite</kwd><kwd>kinetics of the carbonation</kwd><kwd>activation energy</kwd><kwd>pre-exponential factor</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">Bridgwater, A. V. Renewable fuels and chemicals by thermal processing of biomass / A. V. Bridgwater // Chem. Eng. J. – 2003. – Vol. 91. – Р. 87–102.</mixed-citation><mixed-citation xml:lang="en">Bridgwater, A. V. Renewable fuels and chemicals by thermal processing of biomass / A. V. Bridgwater // Chem. Eng. 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