ENERGETIKA

ISSN for PRINT: 0235-7208

For Online Access

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2004, Volume1

Issue 1

90 pages

Issue price - $29.00

Vilma Krusinskaite
Lithuanian Energy Institute, Medþiagø tyrimø ir bandymø laboratorija, Breslaujos str. 3, LT-44403 Kaunas, Lithuania

Vitas Valincius
Lithuanian Energy institute, Material testing and research laboratory, Breslaujos 3, 44403 Kaunas, Lithuania

Pranas Valatkevicius
Lithuanian Energy Institute, Medþiagø tyrimø ir bandymø laboratorija, Breslaujos str. 3, LT-44403 Kaunas, Lithuania

Well-adhered catalytic coatings having a highly developed effective surface area (100−120 m²/g) were formed employing a non-equilibrium plasma spray technology at atmospheric pressure. The coating sublayer was formed from Al or Al and Al(OH)₃ powder mixtures and the active layer was from different mixes of dispersed particles of Cu, CuO, Cr₂O₃ and zeolites. The efficiency and ability towards CO oxidation in the novel catalyst models produced from deposited catalytic coatings was established with the aid of specially designed and manufactured experimental equipment.
The article presents also a design of the experimental equipment, its generalized characteristics and the experimental procedure. The results on catalytic activity show that for the best catalyst models developed by authors, CO conversion begins at a gas temperature of 320 °C. A comparison of the properties of the manufactured catalyst models with noble material samples has shown that the catalytic activity in CO oxidation of catalytic coating prepared from a mixture containing pure copper is similar to the properties of a three-way automotive proprietary catalyst containing noble metals. The distribution of temperature along the transversal surface of internal layers of such catalyst model are shown and the temperature of the reaction beginning is determined.

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