Activity Hysteresis during Cyclic Temperature-Programmed Reactions in the Partial Oxidation of Acrolein to Acrylic Acid
Knoche S, Heid M, Gora N, Ohlig D, Drochner A, Vogel H, Etzold BJ (2017)
Publication Type: Journal article
Publication year: 2017
Journal
Book Volume: 40
Pages Range: 2084-2095
Journal Issue: 11
Abstract
Oxidation of acrolein to acrylic acid on a Mo/V/W mixed oxide catalyst was studied by transient (cyclic temperature-programmed (TP)) as well as steady-state methods. TP reactions (TPReactions) exhibit an activity hysteresis of the catalyst with respect to temperature. As a result of the steady-state measurements, the activity hysteresis is not related to multiple steady states and is exclusively a transient phenomenon. Generally, the dynamics of bulk oxygen plays a key role leading to a reversible oxidation/reduction of the catalyst surface which influences the activity. This means the bulk acts as oxygen buffer. In this context, a reaction model, which involves the participation of bulk oxygen, was deduced and verified by modeling.
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Germany (DE)How to cite
APA:
Knoche, S., Heid, M., Gora, N., Ohlig, D., Drochner, A., Vogel, H., & Etzold, B.J. (2017). Activity Hysteresis during Cyclic Temperature-Programmed Reactions in the Partial Oxidation of Acrolein to Acrylic Acid. Chemical Engineering & Technology, 40(11), 2084-2095. https://doi.org/10.1002/ceat.201700111
MLA:
Knoche, Stefan, et al. "Activity Hysteresis during Cyclic Temperature-Programmed Reactions in the Partial Oxidation of Acrolein to Acrylic Acid." Chemical Engineering & Technology 40.11 (2017): 2084-2095.
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