From Chemistry Towards Technology Step-By-Step From Chemistry Towards Technology Step-By-Step От химии к технологии шаг за шагом 2782-1900 81559 10.52957/27821900_2023_01_70 Научные статьи Scientific articles Научные статьи Modelling of rubber thermal degradation kinetics during the pyrolysis of rubber waste Моделирование кинетики термодеструкции резин при пиролизе резиновых отходов https://orcid.org/0000-0002-8840-248X Соловьев Михаил Евгеньевич Soloviev Mikhail Evgen'evich

доктор физико-математических наук;

doctor of physical and mathematical sciences;

 https://orcid.org/0000-0002-2970-6109 Каблов Виктор Федорович Kablov Viktor F. vkablov5@gmail.com

доктор технических наук;

doctor of technical sciences;

 https://orcid.org/0000-0002-1917-7979 Балдаев Сергей Львович Baldaev Sergey L'vovich

кандидат технических наук;

candidate of technical sciences;

 Федорова Мария Олеговна Fedorova Maria Olegovna Ярославский государственный технический университет Ярославль Россия Ярославский государственный технический университет Ярославль Russian Federation Волжский политехнический институт филиал Волгоградского государственного технического университета Volzhsky Polytechnic Institute, branch of the Volgograd State Technical University ООО «Технологические системы защитных покрытий» Россия ООО «Технологические системы защитных покрытий» Russian Federation 23 03 2023 23 03 2023 4 1 70 85 12 01 2023 22 03 2023 https://chemintech.ru/en/nauka/article/81559/view

Применительно к процессу пиролиза изношенных шин и отходов резино-технических изделий в промышленном реакторе приведена кинетическая модель термодеструкции полимера. Выполнены квантово-химические расчеты изменения термодинамических функций при вероятных химических реакциях деструкции сетчатых эластомеров. В качестве продуктов реакции рассмотрена твердая фракция (технический углерод и отходы металла) и парогазовая смесь, разделяемая на три фракции углеводородов. При описании кинетики деструкции резин использована формальная кинетическая схема, отражающая механизм процесса как совокупность радикально-цепных реакций деструкции полимера. Каждой фракции углеводородов соответствует определенный набор кинетических констант, температурные зависимости которых приняты аррениусовскими. Удовлетворительное согласие полученных расчетных термогравиметрических зависимостей с экспериментальными данными различных авторов позволило аппроксимировать кривые термодеструкции резин кривыми, характеризующими каучуки общего назначения.

Применительно к процессу пиролиза изношенных шин и отходов резино-технических изделий в промышленном реакторе приведена кинетическая модель термодеструкции полимера. Выполнены квантово-химические расчеты изменения термодинамических функций при вероятных химических реакциях деструкции сетчатых эластомеров. В качестве продуктов реакции рассмотрена твердая фракция (технический углерод и отходы металла) и парогазовая смесь, разделяемая на три фракции углеводородов. При описании кинетики деструкции резин использована формальная кинетическая схема, отражающая механизм процесса как совокупность радикально-цепных реакций деструкции полимера. Каждой фракции углеводородов соответствует определенный набор кинетических констант, температурные зависимости которых приняты аррениусовскими. Удовлетворительное согласие полученных расчетных термогравиметрических зависимостей с экспериментальными данными различных авторов позволило аппроксимировать кривые термодеструкции резин кривыми, характеризующими каучуки общего назначения.

 изношенные шины резиновые отходы пиролиз кинетическая модель квантово-химический расчет

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