The macrostructure and transformations of cobalt oxide catalyst for ammonia oxidation

Schmidt-Szałowski, K.; Krawczyk, K.; Petryk, J.

Artykuł - szczegóły

Tytuł artykułu

The macrostructure and transformations of cobalt oxide catalyst for ammonia oxidation

Autorzy

Schmidt-Szałowski K. , Krawczyk K. , Petryk J.

Identyfikatory

Warianty tytułu

Języki publikacji

Abstrakty

Cobalt catalysts may be used in the future for ammonia oxidation to NO instead of platinum gauze. A new catalyst of high and stable activity and selectivity has been obtained from Co(3)On. On this catalyst much less nitrous oxide is produced than on platinum gauze. The effect of heat treatment of the catalyst's granules, made of CO(3)O(4) with organic binder, on their final composition and macrostructure has been studied (within 1000-l250°C). It has been found that the macrostructure of the catalyst has an essential effect on its activity and selectivity. The conversion of Co(3)O(4) into the inactive oxide CoO, proceeding in the reacting gas mixture of low ammonia conversion, is the main cause of the cobalt catalyst deactivation which is, however, reversible.

Słowa kluczowe

ammonia oxidation catalyst cobalt oxide

amoniak utlenianie katalizator tlenek kobaltu

Wydawca

Centrum Materiałów Polimerowych i Węglowych PAN

Czasopismo

Polish Journal of Applied Chemistry

Rocznik

1999

Tom

Vol. 43, nr 1-2

Strony

29--45

Opis fizyczny

Bibliogr. 24 poz.

Twórcy

autor

Schmidt-Szałowski K.

Department of Chemistry, Warsaw University of Technology, Koszykowa 75, 00-664 Warszawa, Poland

autor

Krawczyk K.

Department of Chemistry, Warsaw University of Technology, Koszykowa 75, 00-664 Warszawa, Poland

autor

Petryk J.

Department of Chemistry, Warsaw University of Technology, Koszykowa 75, 00-664 Warszawa, Poland

Bibliografia

[1] J. SOKOŁOWSKI, W.S. BESKOW, Przem. Chem., 67, 9, (1988).
[2] V.I. CHERNYSHOV, I.M. KISIL, Platinum Metals Rev., 37, 136, (1993).
[3] K. KRAWCZYK, Ph D. Thesis, Warsaw University of Technology, Warsaw, (1995).
[4] A.G. SAYIENKO, W.I. ATROSZCZENKO, N.S. ŁOZIENKO, S.S. ORŁOWA, Chim. Promysl., 11, 851, (1976).
[5] K. KRAWCZYK, J. PETRYK, K. SCHMIDT-SZAŁOWSKI, Stud. in Surf. Sci and Catalysis, Elsevier, Amsterdam, 91, 683, (1995).
[6] S. CZUBEK, W. JANICZEK, Z. KRAWIEC, K. KRZYSZTOFORSKA, Przem. Chem., 45, 265, (1966).
[7] A. SIMECEK, B. BERNAUER, J. VOSOLSOBE, Chem. Prum., 30, 125, (1980).
[8] J. VOSOLSOBE, et al., Czech. Patent 206957, (1984).
[9] M.I. TIEMKIN, N.N. MOROZOW, Prob. Fiz. Chim., 2, 14, (1959).
[10] J. PETRYK, K. KRAWCZYK, Przem. Chem., 67, 272, (1988).
[11] M.C. GOROMONZI, S.K. RAMAN, B.D. PADALIA et al., React. Kinet. Catal. Lelt., 15, 131, (1980).
[12] S.P. ADREW, G.C. CHINCHEN, Stud. in Surf. Sci. and Catalysis, Elsevier, Amsterdam, 6, 141, (1980).
[13] T. POPOWA, D. STAWRAKIEWA, I. ZRNCZIEW, Chimia and Industria, 56, 164, (1984).
[14] K. SAZAKI, Repts. Gor. Chem. Ind. Research. Inst. Tokyo, 45, 172, (1950).
[15] K. SCHMIDT-SZAŁOWSKI, J. PETRYK, K. KRAWCZYK, Przem. Chem., 73, 423, (1994).
[16] G.I. CZUFAROW, DAN SSSR, 1, 138, (1961).
[17] O. KUBASCHEWSKI, E.L. EVANS, Metallurgical Thermochemistry. London-Butterworth, Springer Ltd.,125, (1951).
[18] S. WEYCHERT, J. PETRYK, Proc. of the Meeting of Polish Chemical Society, Toruń, (1974).
[19] J. PETRYK, Przem. Chem., 75, 410, (1996).
[20] J. PETRYK, Proc. Second Symposium on Technology of Catalysts and Catalytical Processes, Szczecin, (1989).
[21] J.W. GEUS, et al., Neth. Appl., 7202900, (1973).
[22] T. POPOWA, et al., Bul. Patent 26418, (1973).
[23] J. PETRYK, K. KRAWCZYK, PL Patent 149619, (1990).
[24] K. SCHMIDT-SZAŁOWSKI, K. KRAWCZYK, J. PETRYK, Appl. Catalysis A: General, 175, 147 (1998).

Typ dokumentu

Bibliografia

Identyfikator YADDA

bwmeta1.element.baztech-article-BPP1-0013-0075