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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">10.29235/1561-8358-2019-64-3-321-331</article-id><article-id custom-type="elpub" pub-id-type="custom">vestift-456</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>Кинетика пиролиза древесной биомассы в изотермических условиях</article-title><trans-title-group xml:lang="en"><trans-title>Kinetics of pyrolysis of wood biomass 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><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, b. 2, Academicheskaya Str., 220072, Minsk</p></bio><email xlink:type="simple">mikhailvm@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><bio xml:lang="ru"><p>Василевич Сергей Владимирович – кандидат технических наук, доцент, заведующий лабораторией</p><p>ул. Академическая, 15, корп. 2, 220072, Минск</p></bio><bio xml:lang="en"><p>Siarhei V. Vasilevich – Ph. D. (Engineering), Assistant Professor, Head of Laboratory</p><p>15, b. 2, Academicheskaya Str., 220072, Minsk</p></bio><email xlink:type="simple">svasilevich@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><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>2019</year></pub-date><pub-date pub-type="epub"><day>05</day><month>10</month><year>2019</year></pub-date><volume>64</volume><issue>3</issue><fpage>321</fpage><lpage>331</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Малько М.В., Василевич С.В., 2019</copyright-statement><copyright-year>2019</copyright-year><copyright-holder xml:lang="ru">Малько М.В., Василевич С.В.</copyright-holder><copyright-holder xml:lang="en">Malko M.V., Vasilevich S.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/456">https://vestift.belnauka.by/jour/article/view/456</self-uri><abstract><p>Обсуждаются результаты кинетического исследования пиролиза древесной биомассы (древесина дуба обыкновенного – Quercus robur) в статических условиях при температурах 673, 773 и 873 К. В опытах образцы массой порядка 1,4 г выдерживались в нагревательной печи на протяжении некоторого промежутка времени, после чего измерялась их остаточная масса и определялась достигнутая степень разложения. Всего выполнено семь серий опытов: по две серии при температурах 673 и 873 К и три серии при температуре 773 К. Полученные результаты анализировались в рамках одностадийной химической реакции, приводящей к потере исходной массы. Установлено, что с феноменологической точки зрения пиролиз древесной биомассы в условиях опытов соответствует сигмоидальной реакционной модели Аврами–Ерофеева с показателем степени n, изменяющимся в пределах от 0,508 до 0,985. Анализ результатов первых серий опытов привел к значению энергии активации, равному 57,2 кДж/моль, и значению предэкспоненциального фактора, равному 38 с–1. Другие серии опытов дали значение энергии активации, равное 64,9 кДж/моль, и значение предэкспоненциального фактора, равное 130 с–1. Показано, что использование этих значений энергии активации и предэкспоненциального фактора приводит к согласию расчетных значений степени разложения изученных образцов биомассы с экспериментальными в интервале значений степени разложения от 0 до 1. Представленные в работе данные способствуют более полному пониманию кинетики пиролиза биомассы, что необходимо для разработки эффективного оборудования для термохимической переработки растительного сырья.</p></abstract><trans-abstract xml:lang="en"><p>The paper discusses the results of a kinetic study of the pyrolysis of woody biomass (ordinary oak wood – Quercus robur) under static conditions at temperatures of 673, 773 and 873 K. In experiments, biomass samples weighing about 1.4 g were kept in a heating furnace for a certain period, after which their residual weight was measured and the degree of decomposition achieved was determined. A total of 7 series of experiments were performed: two series each at temperatures of 673 and 873 K and three series at a temperature of 773 K. The obtained results were analyzed in the framework of a single-stage chemical reaction (one-step global model), leading to a loss of the initial mass. It was established that from the phenomenological point of view, the pyrolysis of woody biomass under experimental conditions corresponds to the sigmoidal reaction model by Avarami–Erofeev with an exponent n ranging from 0.508 to 0.985. The use of the results of the first series of experiments led to an activation energy value of 57.2 kJ/mol and a pre-exponential factor value of 38 s–1. The other series of experiments gave an activation energy value of 64.9 kJ/mol and a preexponential factor value of 130 s–1. It is shown that the use of these values of the activation energy and the preexponential factor leads to agreement of the calculated values of the degree of decomposition of the studied biomass samples with the experimental ones in the range of values of the degree of decomposition from 0 to 1. The data presented in this work contribute to a more complete understanding of the kinetics of pyrolysis of biomass, which is necessary for the development of effective equipment for the thermochemical processing of vegetable raw materials.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>пиролиз</kwd><kwd>древесная биомасса</kwd><kwd>кинетика</kwd><kwd>уравнение Аврами–Ерофеева</kwd><kwd>аррениусовские параметры</kwd></kwd-group><kwd-group xml:lang="en"><kwd>pyrolysis</kwd><kwd>woody biomass</kwd><kwd>kinetics</kwd><kwd>Avarami–Erofeev equation</kwd><kwd>Arrhenius parameters</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">Theoretical Investigations of the Effects of Isothermal and Non-isothermal Heating Conditions on the Kinetics of Biomass Particle / M.G. Sobamowo [et al.] // Am. J. 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