Isomerization of limonene on zeolite-containing catalysts based on kaolin

Patrylak  Lyubov; Zubenko Stepan; Konovalov Serhy; Yakovenko Anzhela; Povazhnyi Volodymyr; Pertko Oleksandra; Voloshyna Yulia; Melnychuk Oleksandr; Filonenko  Mykhailo

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2023-04-26 09:37

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[547.596+542.934]:666.32 (1)

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PATRYLAK , Lyubov, ZUBENKO, Stepan, KONOVALOV, Serhy, YAKOVENKO, Anzhela, POVAZHNYI, Volodymyr, PERTKO, Oleksandra, VOLOSHYNA, Yulia, MELNYCHUK, Oleksandr, FILONENKO , Mykhailo. Isomerization of limonene on zeolite-containing catalysts based on kaolin. In: Chemistry Journal of Moldova, 2022, nr. 2(17), pp. 84-93. ISSN 1857-1727. DOI: https://doi.org/10.19261/cjm.2022.980

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Chemistry Journal of Moldova

Numărul 2(17) / 2022 / ISSN 1857-1727 /ISSNe 2345-1688

Isomerization of limonene on zeolite-containing catalysts based on kaolin

DOI:https://doi.org/10.19261/cjm.2022.980

CZU: [547.596+542.934]:666.32

Pag. 84-93

Patrylak Lyubov¹², Zubenko Stepan², Konovalov Serhy², Yakovenko Anzhela², Povazhnyi Volodymyr², Pertko Oleksandra², Voloshyna Yulia², Melnychuk Oleksandr², Filonenko Mykhailo²³

¹ National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute",
² Institute of Bioorganic Chemistry and Petrochemistry of the National Academy of Sciences of Ukraine, Kiev,
³ National Pedagogical University named by M. P. Dragomanov

Disponibil în IBN: 25 aprilie 2023

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The aim of the work was to study the isomerization of limonene on zeolite-containing biporous acid catalysts based on kaolin. Zeolite catalysts were synthesized from Ukrainian kaolin and characterized by using XRD, XRF, DTA/TG, IR-spectroscopy, low-temperature nitrogen adsorption, and pyridine sorption. Micro-mesoporous materials isomerize limonene at 160°C. The main reaction product on acid catalysts was terpinolene, while the original metakaolin microsphere catalyzes mainly the limonene condensation. The maximum yield of isomers is of 60–65% at 80–90% conversion. The obtained results show that the studied samples do not have a significant accumulation of carbonaceous deposits because limonene has high solubil

Cuvinte-cheie
kaolin, zeolite, limonene isomerization, terpinolene yield

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