vestiftИзвестия Национальной академии наук Беларуси. Серия физико-технических наукProceedings of the National Academy of Sciences of Belarus. Physical-technical series1561-83582524-244XThe Republican Unitary Enterprise Publishing House "Belaruskaya Navuka"10.29235/1561-8358-2021-66-4-440-448vestift-701Research ArticleЭНЕРГЕТИКА, ТЕПЛО- И МАССООБМЕНPOWER ENGINEERING, HEAT AND MASS TRANSFERКаталитические свойства композитного материала на основе белорусских доломитов по отношению к процессу разложения пиролизной смолыCatalytic properties of a composite material based on belarusian dolomites in relation to the decomposition of pyrolysis tarВасилевичС. В.VasilevichS. V.

Василевич Сергей Владимирович – кандидат технических наук, доцент

ул. Уборевича, 77, 220072, Минск, Республика Беларусь

Siarhei V. Vasilevich – Ph. D. (Engineering), Associate Professor

77, Uborevich Str., 220072, Minsk, Republic of Belarus

svasilevich@yandex.ruМалькоМ. В.MalkoM. V.

Малько Михаил Владимирович – кандидат физико-математических наук, ведущий научный сотрудник

ул. Академическая, 15, корп. 2, 220072, Минск, Республика Беларусь

Mikhail V. Malko – Ph. D. (Physics and Mathematics), Leading Researcher

15, building 2, Academicheskaya Str., 220072, Minsk, Republic of Belarus

mikhailvm@bas-net.byДегтеровД. В.DegterovD. V.

Дегтеров Дмитрий Валентинович – старший научный сотрудник

ул. Академическая, 15, корп. 2, 220072, Минск, Республика Беларусь

Dmitry V. Degterov – Senior Researcher

15, building 2, Academicheskaya Str., 220072, Minsk, Republic of Belarus

ddegterov@mail.ruАсадчийА. Н.AsadchyiA. N.

Асадчий Андрей Николаевич – научный сотрудник

ул. Академическая, 15, корп. 2, 220072, Минск, Республика Беларусь

Andrei N. Asadchyi – Researcher

15, building 2, Academicheskaya Str., 220072, Minsk, Republic of Belarus

asadchyi@tut.byБелорусская государственная академия авиацииBelarusian State Aviation AcademyИнститут энергетики Национальной академии наук БеларусиInstitute of Power Engineering of the National Academy of Sciences of Belarus202126122021664440448Copyright © Василевич С.В., Малько М.В., Дегтеров Д.В., Асадчий А.Н., 20212021Василевич С.В., Малько М.В., Дегтеров Д.В., Асадчий А.Н.Vasilevich S.V., Malko M.V., Degterov D.V., Asadchyi A.N.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://vestift.belnauka.by/jour/article/view/701

Обсуждаются результаты экспериментального исследования термического разложения пиролизной смолы в гомогенном процессе и в присутствии катализатора. Опыты по термическому разложению пиролизной смолы выполнены в изотермических условиях на лабораторной установке при температурах 300, 400, 450 и 500 °С. Определены скорость гомогенного процесса термического разложения смолы и предельные степени разложения. Энергия активации гомогенного процесса по данным настоящей работы составила 320 кДж/моль. Установлено, что скорость термического разложения смолы повышается в случае внесения в реакционную зону образцов природных доломитов, а также композитного материала на их основе. Это повышение обусловлено протеканием гетерогенной каталитической реакции разложения пиролизной смолы. Кажущаяся энергия активации этого процесса составила 210 кДж/моль (при использовании доломитов) и 202 кДж/моль (при использовании композитов). При этом отмечено, что композитный материал обладает значительно более благоприятными механическими свойствами, нежели доломит. На основании установленных данных сделан вывод о перспективности создания композитных катализаторов термического разложения тяжелых углеводородов, образующихся в процессах термохимической конверсии биомассы.

The paper discusses results of an experimental study of the thermal decomposition of pyrolysis tar in a homogeneous process and in the presence of a catalyst. Experiments on thermal decomposition of pyrolysis tar were carried out under isothermal conditions in a laboratory setup at temperatures of 300, 400, 450 and 500 °C. The rate of the homogeneous process of thermal decomposition of tar and maximal degrees of decomposition were determined. According to the data of this work, the activation energy of the homogeneous process was 320 kJ/mol. It was found that the rate of thermal decomposition of the tar increases in the case of introducing samples of natural dolomites into the reaction zone, as well as a composite material based on them. This increase is due to the occurrence of a heterogeneous catalytic decomposition reaction of the pyrolysis tar. The apparent activation energy of this process was 210 kJ/mol (when using dolomites) and 202 kJ/mol (when using composites). It was noted that the composite material has significantly more favorable mechanical properties than dolomite. Based on the established data, it was concluded that the creation of composite catalysts for the thermal decomposition of heavy hydrocarbons formed in the processes of thermochemical conversion of biomass is promising.

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The authors declare that there are no conflicts of interest present.