Vanadium poisoning of FCC catalysts: A quantitative analysis of impregnated and real equilibrium catalysts

[Display omitted] •A quantitative method to measure the extent of vanadium oxidation in FCC catalysts was developed, which is able to distinguish equilibrium catalysts from FCC units operating at partial or full combustion mode.•Impregnation of fresh FCC catalysts with aqueous solution of VOSO4 foll...

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Veröffentlicht in:	Applied catalysis. A, General General, 2018-06, Vol.560, p.206-214
Hauptverfasser:	Souza, N.L.A., Tkach, I., Morgado, E., Krambrock, K.
Format:	Artikel
Sprache:	eng
Schlagworte:	Catalysts Catalytic cracking Chemical attack Combustion Contaminants Contamination Crystal structure Deactivation Dehydrogenation Electron paramagnetic resonance EPR Equilibrium FCC catalyst Ferromagnetism Fluid catalytic cracking Iron Metal contamination Nickel Organic chemistry Oxidation Quantitative analysis Refineries Regeneration Regenerators Transition metals Vanadium Vanadyl ions X-ray fluorescence XRF
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