doi: 10.3850/978-981-08-7614-2_IMPRES031

ABSTRACT

A method of producing a composite hydrogen permeation membrane using reverse build-up method has been proposed for a membrane fuel reformer. A palladium alloy membrane of thickness 1-5 μm and nickel metal support layer were composited in the proposed method. The uniqueness of the proposed method is that the palladium alloy layer was formed first and the metal support layer was later built on the alloy layer. This study demonstrates the production of the composite membrane by using the proposed method. Hydrogen permeability of the composite membrane was measured under different values of pressure and temperature. Equation of permeability has been proposed. The advantage of the composite membrane to pure alloy membrane is that the palladium required per unit hydrogen permeation could be made lower by reduction of membrane thickness. Economic performance of the composite membrane has been discussed using experimental results.

Keywords: Hydrogen permeation membrane, Reverse build up, Palladium, Permeability.

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