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ID: 244820.0, MPI für Dynamik komplexer technischer Systeme / Physical and Chemical Foundations of Process Engineering
The Influence of Structural Properties of γ-Alumina Supported VOx Catalysts on the Reaction Network of Selective Oxidation of Ethane
Authors:Klose, F.; Wolff, T.; Joshi, M.; Seidel-Morgenstern, A.; Suchorski, Y.; Weiss, H.
Language:English
Name of Conference/Meeting:5th World Congress on Oxidation Catalysis
Place of Conference/Meeting:Sapporo, Japan
(Start) Date of Conference/Meeting
 (YYYY-MM-DD):
2005-09-25
End Date of Conference/Meeting 
 (YYYY-MM-DD):
2005-09-30
 Invitation status:contributed
Audience:Experts Only
Abstract / Description:Two series of γ-alumina supported VOx catalysts with V loadings between 1 and 15 wt.-% prepared by different techniques were studied due their performance in selective oxidation of ethane. Additionally, experiments on the oxidation of ethylene and CO were performed in order to clarify the contributions of consecutive reactions. The results obtained demonstrate, that at low V loadings, corresponding to a high V dispersion, a higher ethylene selectivity is obtained than at higher loaded catalysts. This is especially due to a higher activity of V2O5 for consecutive ethylene oxidation to CO. Additionally, the redox cycles of vanadate and V2O5 are different: the first is mainly only between V(IV) and V(III), in contrast to the latter one, which is between V(V) and V(III)
Free Keywords:Ethane oxidation; Supported vanadium catalysts; Reaction kinetics
Document Type:Talk at Event
Communicated by:Andreas Seidel-Morgenstern
Affiliations:MPI für Dynamik komplexer technischer Systeme/Physical and Chemical Foundations of Process Engineering
External Affiliations:Institut für Automatisierungstechnik, Otto-von-Guericke-Universität, Universitätsplatz 2, 39106 Magdeburg, Germany
Institut für Verfahrenstechnik, Otto-von-Guericke-Universität, Universitätsplatz 2, 39106 Magdeburg, Germany
Institut für Chemie, Otto-von-Guericke-Universität, Universitätsplatz 2, 39106 Magdeburg, Germany
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