Influence of the metal content on the behavior of the catalyst Pt/SAPO-31 in sunflower oil hydro-conversion
Abstract
The possibility of using the catalysts Pt/SAPO-31 for singlestep, in contrast to the industrial two-stage, conversion of vegetable oil to components of waxy diesel. The effect of metal content (0,5–2 wt.% Pt) in the catalyst on its physico-chemical and catalytic properties is studied. It was found that the decrease of catalyst activity during the reaction occurs regardless of the content of platinum, this is manifested in a decrease in their ability to isomerize and the emergence of oxygenates in the reaction products. The physico-chemical properties of the catalysts Pt/SAPO-31 are studied by IR-spectroscopy of adsorbed pyridine, hydrogen chemisorption and transmission electron microscopy. It is shown that the deterioration catalytic properties is due to poisoning of acid sites and reduction of the active surface of the metal component. There are demonstration of the ways to improve the stability of the samples Pt/SAPO-31 in hydro conversion of vegetable oil.
About the Authors
M. Yu. Smirnova
Институт катализа СО РАН, г. Новосибирск
Russian Federation
Russian Federation
O. V. Kihtyanin
Институт катализа СО РАН, г. Новосибирск
Russian Federation
Russian Federation
A. E. Rubanov
Институт катализа СО РАН, г. Новосибирск
Russian Federation
Russian Federation
L. I. Trusov
Ассоциация «Аспект», г. Москва
Russian Federation
Russian Federation
G. V. Echevsky
Институт катализа СО РАН, г. Новосибирск
Russian Federation
Russian Federation
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Review
For citations:
Smirnova M.Yu., Kihtyanin O.V., Rubanov A.E., Trusov L.I., Echevsky G.V. Influence of the metal content on the behavior of the catalyst Pt/SAPO-31 in sunflower oil hydro-conversion. Kataliz v promyshlennosti. 2013;(2):66-71. (In Russ.)
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