Utilization of spent iron catalyst for ammonia synthesis
Abstract
Several methods of the utilization of spent iron catalyst for ammonia synthesis have been presented. The formation of iron nitrides of different stoichiometry by direct nitriding in ammonia in the range of temperatures between 350°C and 450°C has been shown. The preparation methods of carbon nanotubes and nanofibers where iron catalyst catalyse the decomposition of hydrocarbons have been described. The formation of magnetite embedded in a carbon material by direct oxidation of carburized iron catalyst has been also presented.
© 2007 Walerian Arabczyk, Urszula Narkiewicz, Zofia Lendzion-Bieluń, Dariusz Moszyński, Iwona Pełech, Ewa Ekiert, Marcin Podsiadły, Rafał Pelka, Roman Jędrzejewski, Izabela Moszyńska, Daniel Sibera, published by West Pomeranian University of Technology, Szczecin
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