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Palladium-copper and palladium-tin catalysts in the liquid phase nitrate hydrogenation in a batch-recycle reactorPintar, Albin ; Batista, Jurka ; Muševič, IgorCatalytic liquid phase nitrate reduction was investigated at T=298 K and atmospheric pressure in an isothermal batch-recycle reactor in the presence of various Pd-Cu and Pd-Sn bimetallic catalysts ... supported on alumina spheres with particle diameter of 1.7 mm. It was discovered that Pd-Sn solids synthesized accordingly to various catalyst preparation methods, exhibit considerably lower activity for nitrate removal in comparison to Pd-Cu catalysts. Formation of undesired ammonium ions is favored over Pd-Snž-Al2O3 catalysts prepared by impregnation and co-impregnation techniques. Acidity and textural properties of alumina supports as well as the presence of chloride ions in the catalyst-solution interface detrimentally influence catalytic performance in the process of liquid phase nitrate hydrogenation.Source: Applied catalysis. B, Environmental. - ISSN 0926-3373 (Vol. 52, no. 1, 2004, str. 49-60)Type of material - article, component partPublish date - 2004Language - englishCOBISS.SI-ID - 3064090
Author
Pintar, Albin |
Batista, Jurka |
Muševič, Igor
Topics
chemical engineering |
atomic force microscopy (AFS) |
batch-recycle reactor |
bimetallic catalysts |
catalytic nitrate hydrogenation |
energy dispersive X-ray microanalysis (EDX) |
integrated ion-exchange/catalytic denitrification process |
Pd-Cu |
Pd-Sn |
point of zero charge (pHpzc) |
scanning electron microscopy
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Database name | Field | Year |
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Pintar, Albin | 11874 |
Batista, Jurka | 09773 |
Muševič, Igor | 09089 |
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