RT Journal Article
T1 Kinetic study of propane ODH on electrospun vanadium oxide-based submicron diameter fiber catalyst
A1 Ternero-Hidalgo, Juan José
A1 Ruiz-Rosas, Ramiro Rafael
A1 Rosas-Martínez, Juana María
A1 Guerrero-Pérez, María Olga
A1 Rodríguez-Mirasol, José
A1 Cordero-Alcántara, Tomás
K1 Catálisis
AB A rigorous kinetic study of the oxidative dehydrogenation (ODH) reaction of propane on a vanadium oxide-basedsubmicron diameter fiber catalyst has been developed. The proposed kinetic model simulates the conversion-selectivity profiles, the surface coverage of the different adsorbed species and the oxidation state of the cata-lyst for the studied operating conditions of temperature, space–time and inlet partial pressures of propane andoxygen. The activation energy of the rate determining step (RDS), the first hydrogen abstraction from propane, is104 kJ⋅mol 1. The model predicts that although the reaction seems to be pseudo-zero order with respect tooxygen in a broad range of conditions, the catalyst may not be fully oxidized during reaction. The accuracy of themodel when predicting the oxidation state of the catalyst has been experimentally confirmed by analyzing thecatalytic fixed bed after reaction. The reduction degree of the catalyst will depend on its intrinsic chemical natureand reaction conditions, increasing with the space–time and in detriment of the overall reaction rate. Conse-quently, the propane turnover frequency (TOF) will also depend on the reaction conditions and space–time, evenchanging along the fixed-bed reactor.
PB Elsevier
YR 2024
FD 2024
LK https://hdl.handle.net/10630/31235
UL https://hdl.handle.net/10630/31235
LA eng
NO Juan José Ternero-Hidalgo, Ramiro Ruiz-Rosas, Juana María Rosas, María Olga Guerrero-Pérez, José Rodríguez-Mirasol, Tomás Cordero, Kinetic study of propane ODH on electrospun vanadium oxide-based submicron diameter fiber catalyst, Chemical Engineering Science, Volume 295, 2024, 120192, ISSN 0009-2509, https://doi.org/10.1016/j.ces.2024.120192.
NO Funding for open access charge: Universidad de Málaga / CBUA
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 20 ene 2026