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The effect of calcination temperature on properties and activity of Cu/ZnO/Al2O3catalysts

100%
Kowalik P., Próchniak W.
|
2010
|
vol. 65
79-87
EN
The paper presents the results of the investigation on the influence of calcination temperature of Cu-Zn-Al catalyst precursor, on physicochemical properties and catalytic activity for water gas shift reaction. A model precursor of chemical composition corresponding with a typical commercial catalyst and prepared by coprecipitation method was studied. It has been shown that the temperature of calcination step determines the surface properties of the final catalyst, the active phase dispersion, and thus significantly affects the catalytic activity.
2
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The study on alkali-promoted Co-Mo/Al2O3catalysts for water-gas shift process

81%
Antoniak K., Kowalik P., Ryczkowski J.
|
2010
|
vol. 65
88-95
EN
The following contribution presents the results of studies on the effects of alkali metals on the physicochemical properties and the effectiveness of a Co-Mo/Al2O3 catalyst for the water gas shift reaction. It has been shown that the addition of alkali metals modifies the properties of Co-Mo catalysts, resulting in a significant increase in activity of catalysts in water gas shift reaction. The greatest effect was observed in the case of sodium-promoted reaction.
3
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Investigations on hydrogenation of selected organic sulfur compounds on the Ni-Mo/Al2O3catalyst in terms of natural gas desulfurization

71%
Antoniak K., Kowalik P., Narowski R., Konkol M., Ryczkowski J.
|
2011
|
vol. 66
106-116
EN
Technological problems of natural gas desulfurization in syngases manufacturing plants have been discussed and the results of investigations on the activity of the model Ni-Mo/Al2O3 catalyst in hydrogenation of selected sulfur compounds have been presented. The HDS reaction rate is dependent on a compound structure. The hydrogenation rate on the Ni-Mo/Al2O3 catalyst for the given sulfur compound increases in the order: CS2(CH3)2S>C4H10S>C2H6S2C4H4S.
4
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Zagrożenia związane z nadmiarem wody

42%
Romanowicz R. J., Nachlik E., Januchta-Szostak A., Starkel L., Kundzewicz Z. W., Byczkowski A., Kowalczak P., Żelaziński J., Radczuk L., Kowalik P., Szamałek K.
Nauka
|
2014
|
issue 1
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