Journal of Siberian Federal University. Chemistry / Study of Structural and Catalytic Properties of Pt/WOх/ZrO₂, Modified by Lanthanum Cations

Full text (.pdf)
Issue
Journal of Siberian Federal University. Chemistry. 2020 13 (1)
Authors
Naumova, Svetlana A.; Obukhova, Anastasia V.; Kuznetsova, Ludmila I.
Contact information
Naumova, Svetlana A.: Institute of Chemistry and Chemical Technology SB RAS FRC “Krasnoyarsk Science Center SB RAS” Krasnoyarsk, Russian Federation; Siberian Federal University Krasnoyarsk, Russian Federation; ; Obukhova, Anastasia V.: Institute of Chemistry and Chemical Technology SB RAS FRC “Krasnoyarsk Science Center SB RAS” Krasnoyarsk, Russian Federation; Kuznetsova, Ludmila I.: Institute of Chemistry and Chemical Technology SB RAS FRC “Krasnoyarsk Science Center SB RAS” Krasnoyarsk, Russian Federation
Keywords
tungstated zirconia catalyst; cation-modified zirconium dioxide; lanthanum; phase composition; hydroisomerization; n-heptane; benzene
Abstract

Изучено влияние добавок катионов La3+ на структурные свойства катализаторов Pt/WOх/ZrO₂ и характеристики каталитической активности в процессе гидроизомеризации смеси н-гептана с бензолом. Фазовый состав катализаторов представлен твердым раствором катионов лантана в нанокристаллическом диоксиде циркония тетрагональной модификации с преимущественной локализацией лантана в приповерхностных слоях. Показано положительное влияние добавок La3+ на селективность и выход изомеризованных продуктов реакции гидроизомеризации

The effect of the addition of La3+ cations on the structural properties of Pt/WOх/ZrO₂ catalysts and the characteristics of catalytic activity in the process of hydroisomerization of n-heptane and benzene mixture was studied. The phase composition of the catalysts is represented by a solid solution of lanthanum cations in nanocrystalline zirconia of tetragonal modification with localization of lanthanum in the surface layers predominantly. The positive effect of La3+ additives on the selectivity and yield of isomerized products was shown

Pages
133-141
DOI
10.17516/1998-2836-0161
Paper at repository of SibFU
https://elib.sfu-kras.ru/handle/2311/135090