Patent ID: 9624102
Date: 2017-04-18
CPC Classifications: B01J,C01B,C06D,H01M,Y02B,Y02E,Y02T

Claim:
1. A pyrotechnic process for providing very high purity hydrogen, comprising: combusting at least one solid pyrotechnic charge capable of generating hydrogen-containing gas for the production of a pressurized hot hydrogen-containing gas that contains at least 70% by volume of hydrogen; purifying at least one portion of said pressurized hydrogen-containing gas, by passing through a metallic hydrogen separation membrane maintained at a temperature above 250° C., in order to obtain, at the outlet of said membrane, a hydrogen-containing gas that contains at least 99.99% by volume of hydrogen, and cooling at least one portion of said hydrogen-containing gas produced, before its purification thereof, wherein a portion of the amount of heat produced by the combustion of said at least one solid pyrotechnic charge capable of generating hydrogen-containing gas is used for heating said metallic separation membrane, said portion of the amount of heat produced by the combustion of said at least one solid charge capable of generating hydrogen-containing gas being transferred to said metallic separation membrane via a solid material, which acts as a thermal bridge, and wherein a portion of the amount of heat extracted during said cooling is used for heating said metallic separation membrane.