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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">10.29235/1561-8358-2022-67-4-379-392</article-id><article-id custom-type="elpub" pub-id-type="custom">vestift-765</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>Каталитические свойства некоторых минеральных солей по отношению к процессу разложения пиролитической смолы</article-title><trans-title-group xml:lang="en"><trans-title>Catalytic properties of some mineral salts in relation to the process of decomposition of pyrolysis tar</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, building 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"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1754-8262</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Добрего</surname><given-names>К. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Dobrego</surname><given-names>K. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Добрего Кирилл Викторович – доктор физико-математических наук, профессор</p><p>пр. Независимости, 65, 220013, Минск</p></bio><bio xml:lang="en"><p>Kirill V. Dobrego – Dr. Sc. (Physics and Mathematics), Professor</p><p>65, Nezavisimosti Ave., 220013, Minsk</p></bio><email xlink:type="simple">kirilldobrego@gmail.com</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>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-3"/></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-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><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Белорусский национальный технический университет</institution></aff><aff xml:lang="en"><institution>Belarusian National Technical University</institution></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Белорусская государственная академия авиации</institution></aff><aff xml:lang="en"><institution>Belarusian State Aviation Academy</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>02</day><month>01</month><year>2023</year></pub-date><volume>67</volume><issue>4</issue><fpage>379</fpage><lpage>392</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Малько М.В., Добрего К.В., Василевич С.В., Дегтеров Д.В., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Малько М.В., Добрего К.В., Василевич С.В., Дегтеров Д.В.</copyright-holder><copyright-holder xml:lang="en">Malko M.V., Dobrego K.V., Vasilevich S.V., 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/765">https://vestift.belnauka.by/jour/article/view/765</self-uri><abstract><p>Обсуждаются результаты экспериментального исследования термического разложения древесной пиролитической смолы в гомогенном процессе, а также в присутствии ряда минеральных веществ: сульфата калия, сульфата магния, монокалийфосфата и минерального остатка производства калийных солей (МОКС). Опыты выполнены на лабораторной установке в изотермических условиях при температурах 300, 350 и 400 °С по двум методам, обеспечивающим двухфазный и трехфазный контакт с катализатором соответственно. Установлено, что скорость разложения пиролитической смолы в изученных условиях подчиняется закономерностям, описываемым уравнением Аврами–Ерофеева с переменным показателем n. Область изменения этого показателя в различных опытах включает величины от 0,415 до 1,238. Среднее значение показателя n, рассчитанное по всем вариантам исследования, составило 0,694 (95 % ДИ от 0,605 до 0,783), а медианное значение – 0,639. Обнаружено, что скорость разложения пиролитической смолы возрастает в случае внесения в реакционную зону частиц МОКС, сульфата калия и сульфата магния. Не было обнаружено влияния монокалийфосфата на скорость разложения литической смолы. Показано, что в случае присутствия в процессе МОКС увеличение скорости разложения (убыли) пиролитической смолы обусловлено каталитическим эффектом этого вещества. Наиболее вероятной причиной положительного влияния сульфата калия, а также сульфата магния на скорость разложения пиролитической смолы, по-видимому, также является каталитическое воздействие этих веществ. Определены Аррениусовские параметры гомогенного процесса термического разложения смолы и процесса разложения в присутствии МОКС, а также сульфатов калия и магния. Согласно полученным данным, энергия активации гомогенного процесса составила 29,6 кДж/моль, а предэкспоненциальный фактор – 3,15·101 мин–1 соответственно. Аррениусовские параметры разложения пиролитической смолы в присутствии МОКС по данным выполненных исследований составили 23,0 кДж/моль и 1,82·101 мин–1. Определены Аррениусовские параметры разложения пиролитической смолы в присутствии K2SO4 и MgSO4. В соответствии с оценками энергия активации в присутствии этих веществ составила порядка 50–60 кДж/моль. Представленные в статье результаты исследований могут быть использованы при проектировании теплогенерирующего оборудования, включающего в себя систему очистки продуктов термохимической конверсии растительного сырья.</p></abstract><trans-abstract xml:lang="en"><p>The paper discusses the results of an experimental study of the thermal decomposition of pyrolytic wood tar in a homogeneous process, as well as in the presence of a number of mineral substances: potassium sulfate, magnesium sulfate, monopotassium phosphate and the mineral residue of the production of potassium salts. The experiments were carried out on a laboratory setup under isothermal conditions at temperatures of 300, 350, and 400 °C by two methods providing two-phase and three-phase contact with the catalyst, respectively. It has been established that the rate of decomposition of pyrolysis tar under the studied conditions obeys the laws described by the Avrami–Erofeev equation with a variable exponent n. The area of change of this indicator in various experiments includes values from 0.415 to 1.238. The mean n value calculated for all study options was 0.694 (95 % CI 0.605 to 0.783), and the median value was 0.639. It has been found that the decomposition rate of the pyrolysis tar increases when MOX particles, potassium sulfate, and magnesium sulfate are introduced into the reaction zone. No effect of monopotassium phosphate on the rate of decomposition of the pyrolysis tar was not found. It is shown that in the case of tailings of potassium salts production an increase in the rate of decomposition of pyrolysis tar is due to the catalytic effect of this substance. The most likely reason for the positive effect of potassium sulfate, as well as magnesium sulfate on the rate of decomposition of pyrolysis tar, is apparently also the catalytic effect of these substances. The Arrhenius parameters of the homogeneous process of thermal decomposition of the pyrolysis tar and the decomposition process in the presence of tailings of potassium salts production, as well as potassium and magnesium sulfates, were determined. According to the data obtained, the activation energy of the homogeneous process was 29.6 kJ/mol, and the pre-exponential factor was 3.15·101 min–1, respectively. The Arrhenius parameters of the decomposition of pyrolysis tar in the presence of tailings of potassium salts production, according to the data of the performed studies, were 23.0 kJ/mol and 1.82·101 min–1. The paper also determined the Arrhenius parameters of the decomposition of pyrolysis tar in the presence of K2SO4 and MgSO4. According to estimates, the activation energy in the presence of these substances was about 50–60 kJ/mol. The research results presented in the article can be used in the design of heat generating equipment, which includes a system for cleaning products of thermochemical conversion of vegetable raw materials.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>пиролизные смолы</kwd><kwd>сульфат калия</kwd><kwd>сульфат магния</kwd><kwd>монокалийфосфат</kwd><kwd>минеральный остаток калийного производства</kwd><kwd>кинетика разложения</kwd><kwd>энергия активации</kwd><kwd>предэкспоненциальный фактор</kwd></kwd-group><kwd-group xml:lang="en"><kwd>pyrolysis tar</kwd><kwd>potassium sulfate</kwd><kwd>magnesium sulfate</kwd><kwd>monopotassium phosphate</kwd><kwd>potash production waste</kwd><kwd>decomposition kinetics</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">Fortov, V. E. 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