Patent ID: 9284120
Filing Date: 2016-03-15
CPC Classification: B65G,F17C,Y02E

Claim Text:
1. A method for storing high purity hydrogen product in a salt cavern, comprising: removing the high purity hydrogen product from a high purity hydrogen pipeline; compressing the high purity hydrogen product to produce a compressed high purity hydrogen product; introducing the compressed high purity hydrogen product comprising a purity of about 99% or greater into the salt cavern to produce stored high purity hydrogen within the salt cavern; thereby pressurizing at least a portion of the walls of the salt cavern walls characterized by a halite structure having a minimum purity of at least about 75% of sodium chloride, to substantially confine the stored high purity hydrogen within the salt cavern at a pressure, and measuring and adjusting the pressure to maintain the pressure between a predetermined lower limit and a predetermined upper limit.