Specific Features of Positional Isomerization of α-Olefins in the Presence of Zeolite Catalysts

O. S. Vdovinaa, *, K. V. Shirshina, b, D. S. Barutaa, K. K. Shirshinb, A. L. Esipovichb, E. A. Kanakovb, and E. N. Generalovaa

aKhoma Company, Industrial Site of Plastik Production Association 74, Dzerzhinsk, Nizhny Novgorod oblast, 606000 Russia

bAlekseev State Technical University, Nizhny Novgorod, 603950 Russia

email: *vdovina-o@homa.ru

Received 25 November, 2023

Abstract— The positional isomerization of the double bond in α-olefins of С16–С18 fraction on Y-type zeolite with the faujasite-type crystal structure in the H form was studied. An increase in the silica ratio of the catalyst from 45 to 75 leads to the formation of isomerized olefins with lower congealing points. An increase in the catalyst concentration, temperature, and process time leads to the acceleration not only of the target reaction of the double bond migration but also of the side reaction of olefin oligomerization.

Keywords: α-olefins, double bond positional isomerization, zeolite catalyst, silica ratio

DOI: 10.1134/S1070427223090057