Abstract
A theoretical model to simulate hydrogen transport through composite inorganic membranes is proposed. This model simulates the operation of membranes made of three or more porous or metallic layers. Transport through Pd-alloy metallic layers is simulated using a model that accounts for external mass transfer, surface adsorption and desorption, transport to and from the bulk metal, and diffusion within the metal. Transport through porous ceramic layers is simulated using an expression that combines viscous flow, Knudsen diffusion, and transition flow through porous media of complex geometrical structure. The theoretical model has been computationally implemented. Calculated results show very good agreement with experimental data available in the literature. The proposed model predicts hydrogen fluxes through composite membranes of several layers for standard operating conditions. The model can also predict which of the several layers used in manufacturing the membrane is controlling the total hydrogen flux.
| Original language | English |
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| State | Published - 2006 |
| Event | 22nd Interamerican Congress of Chemical Engineering, CIIQ 2006 and 5th Argentinian Congress of Chemical Engineering, CAIQ 2006 - Buenos Aires, Argentina Duration: Oct 1 2006 → Oct 4 2006 |
Conference
| Conference | 22nd Interamerican Congress of Chemical Engineering, CIIQ 2006 and 5th Argentinian Congress of Chemical Engineering, CAIQ 2006 |
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| Country/Territory | Argentina |
| City | Buenos Aires |
| Period | 10/1/06 → 10/4/06 |
Keywords
- Composite
- Inorganic membranes
- Transport