Method and apparatus for delivering a continuous quantity of gas over a wide range of flowrates

摘要

Method and apparatus for delivering high pressure gas to a point of use over a wide range of flowrates by storing (50) said gas as a cryogenic fluid, removing said cryogenic fluid by means of a single stage reciprocating piston-type pump/compressor (60) adapted to utilize liquid, vaporized liquid, a mixture of liquid and vaporized liquid, or supercritical fluid as the inlet fluid to said pump while maintaining the inlet fluid under cryogenic conditions. Blowby from the pump is recycled (100) to the system. Discharge fluid may also be recycled to the system.