Patent ID: 8899278
Filing Date: 2014-12-02
Classification: F17C,Y02E

Abstract:
1. A method for dispensing a compressed gas from a plurality of more than two compressed gas storage volumes, wherein the plurality of compressed gas storage volumes are operated each in a pressure range ranging from a lower gas storage pressure, P LOWER , to an upper gas storage pressure, P UPPER , inclusive, the method comprising: (a) dispensing from a first of the plurality of compressed gas storage volumes into a first receiving vessel, the first of the plurality of compressed gas storage volumes initially at a first pressure, P (b) terminating dispensing from the first of the plurality of compressed gas storage volumes when the pressure in the first of the plurality of compressed gas storage volumes is within 7.5 MPa of P (c) subsequent to step (b), dispensing from a second of the plurality of compressed gas storage volumes into the first receiving vessel, the second of the plurality of compressed gas storage volumes initially at a second pressure, P (d) terminating dispensing from the second of the plurality of compressed gas storage volumes when the first receiving vessel is filled to a desired level for the first receiving vessel; and introducing compressed gas into the first of the plurality of compressed gas storage volumes at least until the pressure in the first of the plurality of compressed gas storage volumes is within 7.5 MPa of P whereby the pressure in each of the plurality of compressed gas storage volumes is cycled through pressure cycles during which compressed gas is withdrawn from each of the plurality of compressed gas storage volumes and compressed gas is introduced into each of the plurality of compressed gas storage volumes, the pressure cycles for each of the plurality of compressed gas storage volumes independent from one another, the pressure cycles for each of the plurality of compressed gas storage volumes having a pressure decrease portion and a pressure increase portion subsequent to the pressure decrease portion, wherein the pressure during the pressure decrease portion progresses from within 7.5 MPa of P