Study of Supported Catalysts Synthesized by the Use of Plasma Technique
O. Yu. Podyacheva1, N. V. Shikina1, Z. R. Ismagilov1, V. A. Ushakov1, A. I. Boronin1, N. A. Rudina1, I. A. Ovsyannikova1, S. A. Yashnik1, O. P. Solonenko2, A. A. Michal'chenko2 and H.Veringa 3
1 G. K. Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences,
Pr. Akademika Lavrentyeva 5, Novosibirsk 630090 (Russia), E-mail:pod@catalysis.nsk.su
2Institute of Theoretical and Applied Mechanics, Siberian Branch of the Russian Academy of Sciences, Ul. Institutskaya 4/1, Novosibirsk 630090 (Russia), 3ECN, P. O. Box 1, 1755 ZG Petten (The Netherlands)
Страницы: 233-238
Аннотация
Some prospects of application of plasma spraying technique for the synthesis of supported catalysts are demonstrated. It was shown that Mn-containing catalysts deposited on γ-Al2O3 by means of plasma spraying demonstrate superior activity in methane oxidation reaction compared with those of reference catalysts prepared via standard conventional route. Gradient alumina layer sprayed on the surface of metal supports of different geometry improves the performance characteristics of combustion catalysts on metal supports during long term operation at high temperatures. A catalytic heat-exchanging (HEX) tubular reactor for combining exothermic combustion and endothermic methane steam reforming has been developed. The methane combustion and steam reforming catalysts were synthesized on the heat-conducting metal foam support materials by application of preliminary plasma spraying in order to increase adhesive properties of the active layer. The HEX reactor with perovskite or Pt supported catalyst on Ni–Cr foam material on the external surface of the HEX tube and with Ni containing reforming catalyst on the internal Ni foam was successfully tested in methane combustion reaction combined with methane steam reforming.
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