METHOD OF MAKING MEMBRANE FOR EXTRACTING HYDROGEN FROM GAS MIXTURES Russian patent published in 2016 - IPC B01D63/06 B01D53/22 

FIELD: energy.

SUBSTANCE: invention relates to hydrogen power engineering, extracting hydrogen from gas mixes, producing of especially pure hydrogen. Method of extracting hydrogen from gas mixtures, where at membrane surface made from metal alloys 5th group of periodic system with each other or with other metals, a protective and catalytic coating of palladium or palladium alloys is applied, according to invention material of membrane is made from alloy containing impurities of alloying elements, concentration of direction from inlet side of membrane to its outlet side by increasing solubility of hydrogen in membrane material increases from inlet side of membrane to its output side in accordance with formula where S(x) is constant hydrogen solubility in metal (alloy), x is coordinate in direction normal to surface of membrane, S_inp is constant value of solubility in material membrane near inlet surface, P_inp and P_output are input and output pressures of hydrogen, ata, L is membrane thickness, mm.

EFFECT: technical result is provision of uniform distribution of concentration of hydrogen across thickness of membrane.

1 cl, 7 dwg