INVESTIGADORES
MUNERA AGUDELO John Fernando
artículos
Título:
Production of ultrapure hydrogen in a PdeAg membrane reactor using noble metals supported on LaeSi oxides. Heterogeneous modeling for the water gas shift reaction
Autor/es:
CAROLINA A. CORNAGLIA, JOHN MÚNERA, EDUARDO A. LOMBARDO; MARÍA E. ADROVER, MARISA N. PEDERNERA, DANIEL O. BORIO
Revista:
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
Editorial:
PERGAMON-ELSEVIER SCIENCE LTD
Referencias:
Lugar: Amsterdam; Año: 2013 vol. 38 p. 10485 - 10493
ISSN:
0360-3199
Resumen:
Two different catalysts, Rh(0.6% wt/wt)/La2O3(27% wt/wt)$SiO2 and Pt(0.6% wt/wt)/La2O3(27%)$SiO2, were tested in the WGS reaction. Their performances were first studied ina conventional fixed-bed reactor. Their activities were similar and they were both verystable. However, as Pt(0.6)/La2O3(27)$SiO2 showed a much higher selectivity to the desiredreaction, the performance of a membrane reactor employing this catalyst was studied. Theeffects of the H2O/CO ratio, space velocity, sweep gas flow rate and size of the catalystparticle on CO conversion and H2 recovery were studied at laboratory scale underisothermal conditions. A 1-D heterogeneous model was developed in order to properlyreproduce the experimental results obtaining good agreement between the simulationresults and laboratory data. The experimental and theoretical results confirm the existenceof significant external mass-transfer limitations in the fluid-particle interface for thesevery active formulations.