Ammonia Decomposition over Iron in the Presence of Water Vapor

• Autorzy: Arabczyk, W. , Zamłynny, J. , Moszyński, D. , Kałucki, K.
• Języki publikacji: EN

Abstrakty

EN

The ammonia decomposition over iron in the presence of water vapor has been studied. Water vapor retards this process, though no change of the apparent activation energy is observed. Despite noticeable influence of the water vapor on the rate of ammonia decomposition the sticking coefficient of ammonia on iron is not affected. Those observations were explained by the retardation of nitrogen molecules recombination on the iron surface due to the presence of oxygen atoms. The positive influence of water vapor on the rate of iron nitriding is also elucidated.

Słowa kluczowe

EN

ammonia decomposition; iron; water vapor

• Czasopismo: Polish Journal of Chemistry
• Rocznik: 2005
• Tom: Vol. 79 / nr 9
• Strony: 1495-1501
• Opis fizyczny: Bibliogr. 15 poz., rys.

Twórcy

autor

Arabczyk, W.

• Szczecin University of Technology, Institute of Chemical and Environment Engineering, Pułaskiego 10, 70-322 Szczecin, Poland

autor

Zamłynny, J.

• Szczecin University of Technology, Institute of Chemical and Environment Engineering, Pułaskiego 10, 70-322 Szczecin, Poland

autor

Moszyński, D.

• Szczecin University of Technology, Institute of Chemical and Environment Engineering, Pułaskiego 10, 70-322 Szczecin, Poland,

autor

Kałucki, K.

• Szczecin University of Technology, Institute of Chemical and Environment Engineering, Pułaskiego 10, 70-322 Szczecin, Poland

Bibliografia

• 1.Aika K. and Tamaru K., Ammonia, Catalysis and Manufacture, Ed. A. Nielsen, Springer, Berlin 1995.
• 2.Cahn R.W. and Haasen P., Physical Metallurgy, North-Holland Physics Publishing, Amsterdam 1983.
• 3.VD1, VDI - Lexikon Werkstofftechnik, VDl-Verlag, Düsseldorf 1990.
• 4.Inokuti Y., Nishida N. and Ohashi N., Metal. Trans. A, 6A, 773 (1975).
• 5.Love K.S. and Emmett P.H., J. Am. Chem. Soc., 63, 3297 (1941).
• 6.Logan S.R., Moss R.L. and Kemball C., Trans. Farad Soc., 54, 922 (1958).
• 7.Coey J.M.D., J. Appl. Phys., 76, 6632 (1994).
• 8.Arabczyk W. and Zamlynny J., Catal. Lett., 60, 167 (1999).
• 9.Arabczyk W. and Wróbel R., Sol. State Phenom., 94, 185 (2003).
• 10.Jedynak A., Kowalczyk Z., Szmigiel D., Raróg W. and Zieliński J., Appl. Catal. A: General, 237, 223 (2002).
• 11.Ohtsuka Y., Xu C., Kong D. and Tsubouchi N., Fuel, 83, 685 (2004).
• 12.Arabczyk W., Narkiewicz U. and Moszyński D., Langmuir, 15, 5785 (1999).
• 13.Lakhtin J.M. and Kogan J.D., Steel Nitriding, Mashinostroenie, Moskwa 1976 (in Russian).
• 14.Nielsen P.E.H., Catalytic Ammonia Synthesis, Fundamentals and Practice, Ed. J. R. Jennings, Plenum Press, New York 1991.
• 15.Ramm W.M., Adsorption Processes in Chemical Industry (in Polish), PWT, Warszawa 1954.