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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">ntv</journal-id><journal-title-group><journal-title xml:lang="ru">Научно-технический вестник информационных технологий, механики и оптики</journal-title><trans-title-group xml:lang="en"><trans-title>Scientific and Technical Journal of Information Technologies, Mechanics and Optics</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2226-1494</issn><issn pub-type="epub">2500-0373</issn><publisher><publisher-name>Университет ИТМО</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17586/2226-1494-2023-23-6-1128-1135</article-id><article-id custom-type="elpub" pub-id-type="custom">ntv-19</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>НОВЫЕ МАТЕРИАЛЫ И НАНОТЕХНОЛОГИИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MATERIAL SCIENCE AND NANOTECHNOLOGIES</subject></subj-group></article-categories><title-group><article-title>Численный алгоритм поиска оптимального состава реагирующей смеси на основе кинетической модели реакции</article-title><trans-title-group xml:lang="en"><trans-title>Numerical algorithm for finding the optimal composition of the reacting mixture on the basis of the reaction kinetic model</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8458-9638</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Антипина</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Antipina</surname><given-names>E V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Антипина Евгения Викторовна — кандидат физико-математических наук, старший научный сотрудник</p><p>Уфа, 450076</p><p>sc 57214879770</p></bio><bio xml:lang="en"><p>Evgenia V. Antipina — PhD (Physics &amp; Mathematics), Senior Researcher</p><p>Ufa, 450076</p><p>sc 57214879770</p></bio><email xlink:type="simple">stepashinaev@ya.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>Мустафина</surname><given-names>С. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Mustafina</surname><given-names>S. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Мустафина Светлана Анатольевна — доктор физико-математических наук, профессор, проректор по развитию филиальной сети</p><p>Уфа, 450076</p><p>sc 6603592002</p></bio><bio xml:lang="en"><p>Svetlana A. Mustafina — D.Sc. (Physics &amp; Mathematics), Vice Rector</p><p>Ufa, 450076</p><p>sc 6603592002</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9151-4167</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Антипин</surname><given-names>А. Ф.</given-names></name><name name-style="western" xml:lang="en"><surname>Antipin</surname><given-names>A. F.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Антипин Андрей Федорович — кандидат технических наук, доцент, доцент</p><p>Стерлитамак, 453103</p><p>sc 55904921400</p></bio><bio xml:lang="en"><p>Andrey F. Antipin — PhD, Associate Professor</p><p>Sterlitamak, 453103</p><p>sc 55904921400</p></bio><email xlink:type="simple">andrejantipin@ya.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Уфимский университет науки и технологий</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Ufa University of Science and Technology</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Стерлитамакский филиал Уфимского университета науки и технологий</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Sterlitamak branch of Ufa University of Science and Technology</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>11</day><month>12</month><year>2024</year></pub-date><volume>23</volume><issue>6</issue><fpage>1128</fpage><lpage>1135</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Антипина Е.В., Мустафина С.А., Антипин А.Ф., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Антипина Е.В., Мустафина С.А., Антипин А.Ф.</copyright-holder><copyright-holder xml:lang="en">Antipina E.V., Mustafina S.A., Antipin A.F.</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://ntv.elpub.ru/jour/article/view/19">https://ntv.elpub.ru/jour/article/view/19</self-uri><abstract><p>Введение. Представлены результаты разработки алгоритма поиска оптимальных начальных концентраций веществ химической реакции. Алгоритм сочетает комбинацию методов оптимизации с теоретическими основами моделирования химических реакций в части построения их кинетических моделей. Математическое описание динамики концентраций реагирующих веществ во времени представлено в виде системы обыкновенных дифференциальных уравнений, начальные условия которой заданы значениями начальных концентраций реагентов. Метод. В общем виде сформулирована задача определения оптимального состава реагирующей смеси. Задача содержит ограничения, накладываемые на значения начальных концентраций веществ и на их начальную суммарную концентрацию. Для решения поставленной задачи применены методы штрафов и Хука–Дживса. Описана функция штрафов, позволяющая свести исходную задачу к задаче без ограничений. Основные результаты. Сформулирован пошаговый алгоритм поиска оптимальных начальных концентраций химической реакции. Проведен вычислительный эксперимент для каталитической реакции аминометилирования тиолов с помощью тетраметилметандиамина. Приведена кинетическая модель реакции, на основе которой сформулирована оптимизационная задача поиска значений начальных концентраций реагентов для получения наибольшего выхода целевого продукта в конце реакции. Вычислены оптимальные начальные концентрации исходных веществ для разной продолжительности реакции и при различных значениях температуры. Обсуждение. Разработанный численный алгоритм определения оптимальных начальных концентраций реагентов учитывает физико-химические особенности поставленной задачи и может быть применен при исследовании сложных химических реакций, содержащих большое количество начальных и промежуточных веществ. Его применение позволяет на этапе компьютерного эксперимента определить закономерности протекания химической реакции, не прибегая к проведению лабораторного опыта, что существенно экономит материальные и временные затраты исследователя.</p></abstract><trans-abstract xml:lang="en"><p>The results of developing an algorithm for searching for optimal initial concentrations of substances in a chemical reaction are presented. The algorithm combines a combination of optimization methods with the theoretical foundations of modeling chemical reactions in terms of constructing their kinetic models. A mathematical description of the dynamics of the concentrations of reactants over time is presented in the form of a system of ordinary differential equations the initial conditions of which are specified by the values of the initial concentrations of the reactants. The problem of determining the optimal composition of the reacting mixture is formulated in general terms. The problem contains restrictions imposed on the values of the initial concentrations of substances and on their initial total concentration. To solve the problem, the penalty method and the Hooke–Jeeves method were used. A penalty function is described that allows one to reduce the original problem to a problem without restrictions. A step-by-step algorithm for searching for optimal initial concentrations of a chemical reaction is formulated. A computational experiment was carried out for the catalytic reaction of aminomethylation of thiols using tetramethylmethanediamine. A kinetic model of the reaction is presented on the basis of which an optimization problem is formulated to find the values of the initial concentrations of reagents to obtain the highest yield of the target product at the end of the reaction. The optimal initial concentrations of the starting substances were calculated for different reaction durations and at different temperatures. The developed numerical algorithm for determining the optimal initial concentrations of reagents takes into account the physicochemical features of the problem and can be used in the study of complex chemical reactions containing a large number of initial and intermediate substances. Its use makes it possible to determine the patterns of a chemical reaction at the stage of a computer experiment, without resorting to laboratory experiments, which significantly saves the material and time costs of the researcher.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>оптимальные начальные концентрации</kwd><kwd>метод штрафов</kwd><kwd>метод Хука–Дживса</kwd><kwd>кинетическая модель реакции</kwd></kwd-group><kwd-group xml:lang="en"><kwd>optimal initial concentrations</kwd><kwd>penalty method</kwd><kwd>Hooke-Jeeves method</kwd><kwd>reaction kinetic model</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование выполнено в рамках государственного задания Министерства науки и высшего образования Российской Федерации (код научной темы FZWU-2023-0002).</funding-statement><funding-statement xml:lang="en">This research was funded by the Ministry of Science and Higher Education of the Russian Federation (scientific code FZWU-2023-0002).</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Ziyatdinov N.N., Emel’yanov I.I., Lapteva T.V., Ryzhova A.A., Ignat’ev A.N. 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