TY - JOUR
T1 - 1,3-Butadiene selective oxidation over VMoO catalysts
T2 - New insights into the reaction pathway
AU - Schroeder, W. D.
AU - Fontenot, C. J.
AU - Schrader, G. L.
N1 - Funding Information:
The authors acknowledge Jim Anderegg of the Ames Laboratory for performing XPS experiments and for assisting interpretation. This research was performed under funding from Ames Laboratory—USDOE Contract W-7405-Eng-82.
PY - 2001
Y1 - 2001
N2 - The partial oxidation of 1,3-butadiene has been investigated over VMoO catalysts synthesized by sol-gel techniques. Surface areas were 9-14 m2/g, and compositions were within the solid solution regime, i.e., below 15.0 mol% (MoO3) in V2O5. Laser Raman and XRD data indicated that solid solutions were formed, and pre- and postreaction XPS data indicated that catalyst surfaces were reduced by the 1,3-butadiene-in-air feeds. The reaction pathway for 1,3-butadiene partial oxidation to maleic anhydride was shown to involve intermediates such as 3,4-epoxy-1-butene, crotonaldehyde, furan, and 2-butene-1,4-dial. The addition of water to the reaction stream substantially increased catalyst activity and improved selectivity to crotonaldehyde and furan at specific reaction temperatures.
AB - The partial oxidation of 1,3-butadiene has been investigated over VMoO catalysts synthesized by sol-gel techniques. Surface areas were 9-14 m2/g, and compositions were within the solid solution regime, i.e., below 15.0 mol% (MoO3) in V2O5. Laser Raman and XRD data indicated that solid solutions were formed, and pre- and postreaction XPS data indicated that catalyst surfaces were reduced by the 1,3-butadiene-in-air feeds. The reaction pathway for 1,3-butadiene partial oxidation to maleic anhydride was shown to involve intermediates such as 3,4-epoxy-1-butene, crotonaldehyde, furan, and 2-butene-1,4-dial. The addition of water to the reaction stream substantially increased catalyst activity and improved selectivity to crotonaldehyde and furan at specific reaction temperatures.
KW - 1,3-Butadiene partial oxidation
KW - Hydrocarbon selective oxidation
KW - Mixed metal oxide catalysts
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U2 - 10.1006/jcat.2001.3333
DO - 10.1006/jcat.2001.3333
M3 - Article
AN - SCOPUS:0035950586
SN - 0021-9517
VL - 203
SP - 382
EP - 392
JO - Journal of Catalysis
JF - Journal of Catalysis
IS - 2
ER -