Catalytic activity and adsorption properties of copper-containing pentasils with Si/Al ratios of20and 40, prepared by ion exchange, mechanical mixing, and impregnation are studied. The Cu/pentasil sys- tems exhibit high activity in the reaction of deep oxidation of benzene and isopentane. The readily reducible Cu2+ cations, localized in the zeolite channels in the planar-square coordination, are shown to be the most active sites in the catalysts. Benzene can also be oxidized on surface copper cations. The chemisorption strengths for hydrocarbons with different properties, CO2, and H2O is estimated.
The nature of active sites in Cu/Pentasil catalysts for deep oxidation of hydrocarbons
BOTAVINA, Maria;
1996-01-01
Abstract
Catalytic activity and adsorption properties of copper-containing pentasils with Si/Al ratios of20and 40, prepared by ion exchange, mechanical mixing, and impregnation are studied. The Cu/pentasil sys- tems exhibit high activity in the reaction of deep oxidation of benzene and isopentane. The readily reducible Cu2+ cations, localized in the zeolite channels in the planar-square coordination, are shown to be the most active sites in the catalysts. Benzene can also be oxidized on surface copper cations. The chemisorption strengths for hydrocarbons with different properties, CO2, and H2O is estimated.File in questo prodotto:
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