Patent ID: 6946020

Claim:
A hydrogen purification module comprising: a plurality of unit cells, each of the unit cells comprising: two metal membranes which are selectively permeable only by hydrogen; a metal support ring disposed between the metal membranes and attached to the metal membranes at both its sides by diffusion bonding so as to support the metal membranes, the metal support ring being provided with a radial hole to allow hydrogen permeated through the metal membranes to flow therethrough; a porous plate disposed between the metal membranes so as to allow the hydrogen permeated through the metal membranes to flow therethrough; and a fitting coupled to the metal support ring, including a hole communicating with the hole of the metal support ring so as to allow the hydrogen in the porous plate to flow therethrough; wherein the individual fittings are connected to each other so that hydrogen collected in the individual fittings is discharged through a hydrogen product line.