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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Kinetics and Catalysis</journal-id><journal-title-group><journal-title xml:lang="en">Kinetics and Catalysis</journal-title><trans-title-group xml:lang="ru"><trans-title>Кинетика и катализ</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0453-8811</issn><issn publication-format="electronic">3034-5413</issn><publisher><publisher-name xml:lang="en">The Russian Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">687459</article-id><article-id pub-id-type="doi">10.31857/S0453881125010049</article-id><article-id pub-id-type="edn">EJCPAS</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>ARTICLES</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>СТАТЬИ</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Application of a three-component model to describe non-isothermal pyrolysis of rice husk</article-title><trans-title-group xml:lang="ru"><trans-title>Применение трехкомпонентной модели для описания неизотермического пиролиза рисовой шелухи</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Zavarukhin</surname><given-names>S. G.</given-names></name><name xml:lang="ru"><surname>Заварухин</surname><given-names>С. Г.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>zsg@catalysis.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Korkina</surname><given-names>A. K.</given-names></name><name xml:lang="ru"><surname>Коркина</surname><given-names>А. К.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>zsg@catalysis.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Yakovlev</surname><given-names>V. A.</given-names></name><name xml:lang="ru"><surname>Яковлев</surname><given-names>В. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>zsg@catalysis.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Boreskov Institute of Catalysis SB RAS</institution></aff><aff><institution xml:lang="ru">ФГБУН Институт катализа им. Г. К. Борескова СО РАН</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Novosibirsk State Technical University</institution></aff><aff><institution xml:lang="ru">ФГБОУ ВО Новосибирский государственный технический университет</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2025-08-04" publication-format="electronic"><day>04</day><month>08</month><year>2025</year></pub-date><volume>66</volume><issue>1</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>39</fpage><lpage>47</lpage><history><date date-type="received" iso-8601-date="2025-07-14"><day>14</day><month>07</month><year>2025</year></date><date date-type="accepted" iso-8601-date="2025-07-14"><day>14</day><month>07</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2025, Russian Academy of Sciences</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2025, Российская академия наук</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="en">Russian Academy of Sciences</copyright-holder><copyright-holder xml:lang="ru">Российская академия наук</copyright-holder></permissions><self-uri xlink:href="https://journals.eco-vector.com/0453-8811/article/view/687459">https://journals.eco-vector.com/0453-8811/article/view/687459</self-uri><abstract xml:lang="en"><p>The experimental data on rice husk pyrolysis obtained by thermogravimetric method in non-isothermal mode were processed based on three-component kinetic model. According to the model, biomass is represented by the sum of three components — hemicellulose, cellulose and lignin. Pyrolysis of each component proceeds by independent irreversible first-order reaction. To determine the model parameters, the experimental data processing technique based on the difference in temperature ranges of hemicellulose, cellulose and lignin pyrolysis, improved in this work, was used. The activation energies of rice husk component pyrolysis were as follows: 21.3 kJ/mol for lignin, 110 kJ/mol for cellulose, and 38 kJ/mol for hemicellulose. The discrepancy between the experimental and calculated data on the sample mass was less than 1%. For comparison, the experimental data were processed using the one-component Ginstling–Brownestein model using the Coats–Redfern method.</p></abstract><trans-abstract xml:lang="ru"><p>Экспериментальные данные по пиролизу рисовой шелухи, полученные термогравиметрическим методом в неизотермическом режиме, обработаны на основе трехкомпонентной кинетической модели. Согласно модели, биомасса представляется суммой трех компонент — гемицеллюлозы, целлюлозы и лигнина. Пиролиз каждого компонента протекает по независимой необратимой реакции первого порядка. Для определения параметров модели использовали методику обработки экспериментальных данных, основанную на различии температурных диапазонов пиролиза гемицеллюлозы, целлюлозы и лигнина, улучшенную в настоящей работе. Энергии активации пиролиза компонент рисовой шелухи составили: для лигнина — 21.3 кДж/моль, целлюлозы — 110 кДж/моль, и гемицеллюлозы — 38 кДж/моль. Расхождение между экспериментальными и расчетными данными по массе образца было менее 1%. Для сравнения экспериментальные данные были обработаны по однокомпонентной модели Гинстлинга–Броунштейна с использованием метода Коатса–Редферна.</p></trans-abstract><kwd-group xml:lang="en"><kwd>non-isothermal pyrolysis</kwd><kwd>rice husk</kwd><kwd>three-component kinetic model</kwd><kwd>experimental data processing technique</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>неизотермический пиролиз</kwd><kwd>рисовая шелуха</kwd><kwd>трехкомпонентная кинетическая модель</kwd><kwd>методика обработки экспериментальных данных</kwd></kwd-group><funding-group><award-group><funding-source><institution-wrap><institution xml:lang="ru">Министерство науки и высшего образования Российской Федерации</institution></institution-wrap><institution-wrap><institution xml:lang="en">Ministry of Science and Higher Education of the Russian Federation</institution></institution-wrap></funding-source><award-id>FWUR-2024-0038</award-id></award-group></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Гребенкина А.В., Шишова Н.В., Литвинова Т.А., Косулина Т.П. // Научные труды КубГТУ. 2017. № 7. 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