TY - GEN
T1 - Kinetics of butane oxidation to maleic anhydride
T2 - 7th World Congress of Chemical Engineering, GLASGOW2005, incorporating the 5th European Congress of Chemical Engineering
AU - Gascón, J.
AU - Valenciano, R.
AU - Téllez, C.
AU - Herguido, J.
AU - Menéndez, M.
PY - 2005
Y1 - 2005
N2 - A new kinetic model, which forecasts the transient behavior of the catalyst under oxidizing, reducing, and cofed (butane-O 2) conditions, is presented. Transient experiments feeding an inert with butane or oxygen, and semi-transient experiments, cofeeding butane and oxygen with low oxygen partial pressures, are performed. The model proposed assumes the presence of oxygen in the surface and in the lattice of the catalyst, but only the oxygen in the surface takes place in the oxidation reactions, being replenished by diffusion from the lattice. When the catalyst is reoxidized, oxygen diffuses from the surface to the lattice. In the cases where oxygen and butane are cofed, the surface coverage by oxygen varies with time due to the simultaneous effect of reaction with butane and maleic anhydride, oxygen adsorption from the gas phase and oxygen diffusion to/or the lattice. A satisfactory prediction of the transient behavior of the catalyst is achieved under the variety of experimental conditions employed in the kinetic study. This is an abstract of a paper presented at the 7th World Congress of Chemical Engineering (Glasgow, Scotland 7/10-14/2005).
AB - A new kinetic model, which forecasts the transient behavior of the catalyst under oxidizing, reducing, and cofed (butane-O 2) conditions, is presented. Transient experiments feeding an inert with butane or oxygen, and semi-transient experiments, cofeeding butane and oxygen with low oxygen partial pressures, are performed. The model proposed assumes the presence of oxygen in the surface and in the lattice of the catalyst, but only the oxygen in the surface takes place in the oxidation reactions, being replenished by diffusion from the lattice. When the catalyst is reoxidized, oxygen diffuses from the surface to the lattice. In the cases where oxygen and butane are cofed, the surface coverage by oxygen varies with time due to the simultaneous effect of reaction with butane and maleic anhydride, oxygen adsorption from the gas phase and oxygen diffusion to/or the lattice. A satisfactory prediction of the transient behavior of the catalyst is achieved under the variety of experimental conditions employed in the kinetic study. This is an abstract of a paper presented at the 7th World Congress of Chemical Engineering (Glasgow, Scotland 7/10-14/2005).
UR - http://www.scopus.com/inward/record.url?scp=33645161238&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:33645161238
SN - 0852954948
SN - 9780852954942
T3 - 7th World Congress of Chemical Engineering, GLASGOW2005, incorporating the 5th European Congress of Chemical Engineering
SP - 125
BT - 7th World Congress of Chemical Engineering, GLASGOW2005, incorporating the 5th European Congress of Chemical Engineering - Congress Manuscripts
Y2 - 10 July 2005 through 14 July 2005
ER -