INVESTIGADORES
BUCALA Veronica
artículos
Título:
Catalytic combustion of methane over Pd/Al2O3 in amonolithis reactor: kinetic study
Autor/es:
LOPEZ, EDUARDO; GIGOLA, CARLOS; BORIO, DANIEL; BUCALA, VERONICA
Revista:
STUDIES IN SURFACE SCIENCE AND CATALYSIS
Editorial:
ELSEVIER SCIENCE SA
Referencias:
Año: 2001 vol. 133 p. 625 - 630
ISSN:
0167-2991
Resumen:
This paper focuses on the kinetic study of the methane combustion over a Pd/~'-A1203
catalyst deposited on a cordierite monolithic structure. The experiments were performed in an
integral reactor, and the operating conditions were chosen to adequately represent the
operation of a domestic-scale catalytic heater, i.e. relatively high volumetric flowrates and
high methane molar ~actions. The experimental data together with an appropriate model for
the integral reactor were used to estimate the intrinsic kinetic parameters for a power law type
reaction. For the laboratory catalyst, internal mass transfer limitations become appreciable for
temperatures higher than 430~ A heterogeneous reactor model, which includes the
evaluation of the methane concentration gradient inside the washcoat, allowed to reproduce
with high accuracy the laboratory data.