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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 pub-id-type="doi">10.29235/1561-8358-2022-67-2-204-213</article-id><article-id custom-type="elpub" pub-id-type="custom">vestift-737</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>Влияние размера частиц доломита на кинетику процесса его термического разложения</article-title><trans-title-group xml:lang="en"><trans-title>Influence of dolomite particle size on the kinetics of its thermal decomposition process</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>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><bio xml:lang="ru"><p>Василевич Сергей Владимирович – кандидат технических наук, заведующий лабораторией</p><p>ул. Уборевича, 77, 220072, Минск</p></bio><bio xml:lang="en"><p>Siarhei V. Vasilevich – Ph. D. (Engineering), Head of the Laboratory</p><p>77, Uborevich Str., 220072, Minsk</p></bio><email xlink:type="simple">svasilevich@yandex.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>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><bio xml:lang="ru"><p>Малько Михаил Владимирович – кандидат физико-математических наук, ведущий научный сотрудник</p><p>ул. Академическая, 15, корп. 2, 220072, Минск</p></bio><bio xml:lang="en"><p>Mikhail V. Malko – Ph. D. (Physics and Mathematics), Leading Researcher</p><p>15, building 2, Academicheskaya Str., 220072, Minsk</p></bio><email xlink:type="simple">mikhailvm@bas-net.by</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>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><bio xml:lang="ru"><p>Дегтеров Дмитрий Валентинович – старший научный сотрудник</p><p>ул. Академическая, 15, корп. 2, 220072, Минск</p></bio><bio xml:lang="en"><p>Dmitry V. Degterov – Senior Researcher</p><p>15, building 2, Academicheskaya Str., 220072, Minsk</p></bio><email xlink:type="simple">ddegterov@mail.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>Асадчий</surname><given-names>А. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Asadchyi</surname><given-names>A. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Асадчий Андрей Николаевич – научный сотрудник</p><p>ул. Академическая, 15, корп. 2, 220072, Минск</p></bio><bio xml:lang="en"><p>Andrei N. Asadchyi – Researcher</p><p>15, building 2, Academicheskaya Str., 220072, Minsk</p></bio><email xlink:type="simple">asadchyi@tut.by</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Белорусская государственная академия авиации</institution></aff><aff xml:lang="en"><institution>Belarusian State Aviation Academy</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Институт энергетики Национальной академии наук 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>2022</year></pub-date><pub-date pub-type="epub"><day>02</day><month>07</month><year>2022</year></pub-date><volume>67</volume><issue>2</issue><fpage>204</fpage><lpage>213</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Василевич С.В., Малько М.В., Дегтеров Д.В., Асадчий А.Н., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Василевич С.В., Малько М.В., Дегтеров Д.В., Асадчий А.Н.</copyright-holder><copyright-holder xml:lang="en">Vasilevich S.V., Malko M.V., Degterov D.V., Asadchyi A.N.</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/737">https://vestift.belnauka.by/jour/article/view/737</self-uri><abstract><p>Обсуждаются результаты экспериментального исследования термического разложения природного доломита, выполненного на лабораторном оборудовании при постоянных температурах 650 °С, 700, 750, 800 и 850 °С. В качестве исследуемых образцов использовались частицы белорусского доломита массой 0,58 г, 0,88, 2,3, 2,7, 7,6 и 16,3 г. Приведено уравнение, описывающее кинетику термического разложения природных доломитов Беларуси. Показано, что скорость реакции термического разложения доломита зависит не только от температурного режима в реакционной зоне, но и в значительной мере определяется массой исследуемых образцов. Установлено, что константа скорости термического разложения доломита в исследуемом диапазоне масс образцов может быть рассчитана по эмпирическому выражению, идентифицированному в ходе настоящего исследования. Определены константы скорости термического разложения частиц доломита различной массы. Приведено сравнение значений констант скорости, полученных эмпирическим путем и расcчитанных с учетом массы образцов. Отмечено, что разработанная модель является физически обоснованной, а предложенная в работе зависимость может быть инкорпорирована в существующие инженерные методики расчетов систем очистки генераторных газов, использующих доломит в качестве катализатора и сорбента.</p></abstract><trans-abstract xml:lang="en"><p>The results of an experimental study of the thermal decomposition of natural dolomite, carried out on laboratory equipment at constant temperatures of 650 °C, 700, 750, 800 and 850 °C, are discussed. Particles of Belarusian dolomite weighing 0.58 g, 0.88, 2.3, 2.7, 7.6 and 16.3 g were used as the test samples. An integral equation describing the kinetics of thermal decomposition of natural dolomites of Belarus is presented. It is shown that the reaction rate of thermal decomposition of dolomite depends not only on the temperature regime in the reaction zone, but is also largely determined by the mass of the samples under study. It has been established that the rate constant of thermal decomposition of dolomite in the studied range of sample masses can be determined by the empirical expression identified in the course of this study. The rate constants of thermal decomposition of dolomite particles of various masses have been determined. The values of the rate constants obtained empirically and those calculated taking into account the mass of the samples are compared. It is noted that the developed model is physically justified, and the dependence proposed in the work can be incorporated into existing engineering methods for calculating generator gas purification systems using dolomite as a catalyst and sorbent.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>топливный газ</kwd><kwd>доломит</kwd><kwd>термическое разложение</kwd><kwd>сорбент</kwd><kwd>термогравиметрический анализ</kwd><kwd>кинетика разложения</kwd><kwd>энергия активации</kwd><kwd>предэкспоненциальный фактор</kwd></kwd-group><kwd-group xml:lang="en"><kwd>fuel gas</kwd><kwd>dolomite</kwd><kwd>thermal decomposition</kwd><kwd>sorbent</kwd><kwd>thermogravimetric analysis</kwd><kwd>decomposition kinetics</kwd><kwd>activation energy</kwd><kwd>pre-exponential factor</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена при финансовой поддержке Белорусского республиканского фонда фундаментальных исследований (грант № Т22КИ-003).</funding-statement><funding-statement xml:lang="en">The work was carried out with the financial support of the Belarusian Republican Foundation for Basic Research (grant no. 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