vuzbiochemiИзвестия вузов. Прикладная химия и биотехнологияProceedings of Universities. Applied Chemistry and Biotechnology2227-29252500-1558ИРНИТУ10.21285/2227-2925-2022-12-3-455-461vuzbiochemi-851Research ArticleХИМИЧЕСКАЯ ТЕХНОЛОГИЯCHEMICAL TECHNOLOGYТестирование УФ-облучением биодизеля из масла верблюжьей колючки и дизель-биодизельных смесейUV irradiation testing of biodiesel from the Alhagi oil and diesel-biodiesel mixtureshttps://orcid.org/0000-0003-2412-4596КулиеваС. Г.GuliyevaS. G.

Салатын Габиль Кулиева, докторант (PhD)

Az-1148, г. Баку, ул. З. Халилова, 23

Salatin G. Guliyeva, PhD, Doctoral Student

23, Khalilov St., Baku, Az1148

abdurahmanlisalatin@gmail.comhttps://orcid.org/0000-0002-5757-9899МамедовИ. Г.MamedovI. G.

Ибрагим Гариб Мамедов, д.х.н., профессор

Az-1148, г. Баку, ул. З. Халилова, 23

Ibrahim G. Mamedov, Dr. Sci. (Chemistry), Professor

23, Khalilov St., Baku, Az1148

bsu.nmrlab@mail.ruБакинский государственный университетАзербайджанBaku State UniversityAzerbaijan202209102022123455461Copyright © Кулиева С.Г., Мамедов И.Г., 20222022Кулиева С.Г., Мамедов И.Г.Guliyeva S.G., Mamedov I.G.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://vuzbiochemi.elpub.ru/jour/article/view/851

Химическая стабильность топлив является одним из ключевых факторов обеспечения исправной работы двигателей внутреннего сгорания. Прогрессирующая деструкция компонентов дизель-биодизельных топлив при хранении и транспортировке может отрицательно сказаться на их физико-химических показателях. Кроме того, разрушение нефтепродуктов под действием солнечных лучей и образование токсичных соединений имеет экологическое значение. Целью представленной работы является исследование влияния УФ-облучения (λ = 300–450 нм) на химический состав нефтяного дизельного топлива и топливных смесей В5, В10, В20, В50 и В100 в течение 24 ч. В качестве биодизеля использовали продукт переэтерификации непищевого масла верблюжьей колючки с метанолом. Химические изменения после облучения контролировали с помощью ЯМР-спектрометра FT BRUKER. Изучена взаимосвязь изменений химического состава и важных физико-химических параметров (плотность, вязкость, температура вспышки, цетановое число) до и после фотохимической деструкции. На основании полученных результатов установлено, что топливная смесь В20 обладает большей химической стабильностью после УФ-облучения, чем обычное дизельное топливо и другие дизель-биодизельные смеси.

The chemical stability of fuels is one of the key factors in ensuring the proper operation of combustion engines. Progressive destruction of components of diesel-biodiesel fuels during storage and transportation can adversely affect their physical and chemical parameters. Besides, the destruction of petroleum products under sunlight and the formation of toxic compounds have ecological importance. The purpose of the presented work is to investigate the influence of UV irradiation (λ = 300–450 nm) on the chemical content of petroleum diesel and B5, B10, B20, B50, and B100 fuel blends for the 24 h. As biodiesel, the product of transesterification of non-edible Alhagi oil with methanol was used. Chemical changes after irradiation were controlled by the BRUKER FT NMR spectrometer. The relationship between changes in the chemical composition and important physicochemical parameters (density, viscosity, flash point, and cetane index), before and after photochemical destructions was discussed. Based on the obtained results, it was determined that the B20 fuel mixture has more chemical stability after UV irradiation than conventional diesel and other diesel-biodiesel mixtures.

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