KINETICS ON BIODIESEL OXIDATION BY AIR OXYGEN CATALYZED BY MOLYBDENUM COMPLEX

Yudaev, S.; Ivashkina, E.; Cherepanova, A.; Voronov, M.; Sapunov, V.

Авторы: Sergey Yudaev, Elena Ivashkina, Anna Cherepanova, Mikhail Voronov, Valentin Sapunov
Журнал: Petroleum and Coal
Том: 61
Номер: 5
Год издания: 2019
Первая страница: 965
Последняя страница: 972
Аннотация: The proposed method of processing fuels derived from bio-raw materials allows for obtaining products of organic synthesis. The simplified scheme of reactions occurring in the system of oxidizing biodiesel and mathematic description were developed, and they are suitable for non-catalytic as well as Mo-catalyzed oxidation of biodiesel by air oxygen. Kinetic regularities of the process of biodiesel aerobic oxidation were studied by using this kinetic model. It has been found out that Mo-catalyst accelerates formation of all final products including epoxides by means of interaction with peroxyl radicals, i.e. the traditional Sharpless epoxidation mechanism doesn’t match to this case. General parameters of the process, such as air supply speed and temperature do not impact on the character of components concentration curves. Influence of the composition of FAME on the epoxidation selectivity was revealed. The growth of epoxide formation selectivity (up to 85% at 50% – conversion of C-C – double bonds) is observed when mono-/poly-unsaturated compounds ratio is increasing. Thus, fatty acid methyl esters with different unsaturation degree demonstrate tendency to interact in various types of reactions.
Добавил в систему: Воронов Михаил Сергеевич

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