INVESTIGADORES
BOSKO Maria Laura
artículos
Título:
Comparison of Ru/La2O2CO3 performance in two different membrane reactors for hydrogen production
Autor/es:
B. FAROLDI, M. L. BOSKO, J. F. MÚNERA, E. A. LOMBARDO, L. M. CORNAGLIA
Revista:
CATALYSIS TODAY
Editorial:
ELSEVIER SCIENCE BV
Referencias:
Lugar: Louisiana State University; Año: 2013 vol. 213 p. 135 - 144
ISSN:
0920-5861
Resumen:
Ruthenium catalysts supported on a lanthanum oxycarbonate phase (La2O2CO3) with high surface area were prepared. All solids were stable for at least 90 h on stream in the combined dry reforming and oxidation of methane reactions. The catalyst with more stable metallic Ru species was selected to be studied under the more severe conditions of membrane reactors. A double tubular membrane reactor was built using a commercial self-standing membrane or a composite Pd/NaAPSS membrane. The Pd membrane reactor exhibited a higher H2 permeated/CH4 fed ratio at 450ºC that could be related to its higher hydrogen permeability. The comparison of the catalytic behavior of Ru catalysts supported on high surface area lanthanum oxycarbonate and La2O3. SiO2 binary support in a membrane reactor was performed at 550 ºC. On the retentate side, the molar composition of CO2 was similar to that of CH4 when the Ru/La2O2CO3 catalyst was employed, which suggests that this solid did not favor the RWGS reaction under DRM conditions producing a higher H2 permeated/CH4 fed ratio. The Ru catalysts showeda similar performance to that of our best Rh solids when the fractions of the reaction equilibration and H2 permeated/(CH4fed × permeation area) ratio were compared.