INCAPE   05401
INSTITUTO DE INVESTIGACIONES EN CATALISIS Y PETROQUIMICA "ING. JOSE MIGUEL PARERA"
Unidad Ejecutora - UE
artículos
Título:
Pd based membrane reactor for ultra pure hydrogen production through the dry reforming of methane. Experimental and modeling studies
Autor/es:
L. CORONEL; J. F. MÚNERA; E. A. LOMBARDO; L. M. CORNAGLIA
Revista:
APPLIED CATALYSIS A-GENERAL
Editorial:
ELSEVIER SCIENCE BV
Referencias:
Año: 2011 vol. 400 p. 185 - 194
ISSN:
0926-860X
Resumen:
A dense Pd–Ag membrane reactor (MR) with 100% hydrogen selectivity packed with either Rh/La2 O3 orRh/La2 O3 –SiO2 as catalysts was used to carry out the dry reforming of methane. The membrane reac-tor simulation was performed using a well-known reactor model. For this purpose, we employed theequations derived from complete kinetic studies of the dry reforming of methane reaction in connec-tion with both catalysts. In addition, we developed the kinetic equation for the reverse water gas shiftreaction (RWGS). The combination of detailed kinetic studies with the measured permeation flux forthe Pd–Ag membrane allowed a complete comparison between experimental and simulated operationvariables. The variables studied for both catalysts were methane conversion and hydrogen permeationas a function of the sweep gas flow rate. The correlation between methane conversion enhancement andhydrogen recovery confirmed that a good prediction was obtained with this model. The performance oftwo reactor configurations (membrane reactor and conventional fixed-bed reactor) and both co-currentand counter-current flow modes were compared. The effect of various operating variables such as per-meation area, sweep gas flow rate and feed composition upon conversion, product compositions andhydrogen recovery were analyzed.