Artículo
Modeling and optimal design of cyclic processes for hydrogen purification using hydrides-forming metals
Talagañis, Basilio Andres
; Meyer, Gabriel Omar
; Oliva, Diego Gabriel
; Fuentes Mora, Mauren
; Aguirre, Pio Antonio
Fecha de publicación:
11/2014
Editorial:
Elsevier
Revista:
International Journal of Hydrogen Energy
ISSN:
0360-3199
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Hydrogen at high purity degrees can be obtained by using the well-known Pressure Swing Adsorption (PSA) process. In this paper, a Pressure Swing Absorption (PSAb) alternative operating batch wise is analyzed. An optimal design of cyclic processes for hydrogen purification using hydride-forming metals as absorption material is addressed. The selected case study is a thermo-chemical treatment process that consumes high purity hydrogen to reduce oxides and generates a waste stream that contains residual H2. PSAb process is fed with this hydrogen-poor stream; and high purity hydrogen recovery levels are obtained. A mathematical model based on an energy integrated scheme is presented to develop the optimal process design and to obtain optimal operating conditions. Various optimized solutions are compared by modifying key parameters or restriction equations. Thus, an interesting trade-off between H2 recovery and system size is analyzed. Large systems operate at large cycle times, obtaining up to 98% of H2 recovery in the order of hours, whereas small systems can recover up to 60% of H2 in short cycles of a few seconds
Palabras clave:
Modelling
,
Optimal Design
,
Hydrides
,
Hydrogen Purification
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Articulos(CCT - PATAGONIA NORTE)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - PATAGONIA NORTE
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - PATAGONIA NORTE
Articulos(INGAR)
Articulos de INST.DE DESARROLLO Y DISEÑO (I)
Articulos de INST.DE DESARROLLO Y DISEÑO (I)
Citación
Talagañis, Basilio Andres; Meyer, Gabriel Omar; Oliva, Diego Gabriel; Fuentes Mora, Mauren; Aguirre, Pio Antonio; Modeling and optimal design of cyclic processes for hydrogen purification using hydrides-forming metals; Elsevier; International Journal of Hydrogen Energy; 39; 33; 11-2014; 18997-19008
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