Patent ID: 6668581
Filing Date: 2003-12-30
Classification: C01B,F17C,F25J,Y02E,Y02P

Abstract:
A method for providing industrial gas product to a use point comprising:(A) passing a gaseous industrial gas containing feed stream to an industrial gas generator, and producing gaseous industrial gas product in the industrial gas generator; (B) generating a cold working gas, warming the cold working gas by indirect heat exchange with gaseous industrial gas product to liquefy gaseous industrial gas product, and storing the liquefied industrial gas product in a storage vessel; and (C) providing industrial gas product from the storage vessel to the use point, wherein the cold working gas is generated by providing a pulse to a working gas to produce compressed working gas, and expanding the compressed working gas in a cold section of a pulse tube, and wherein a portion of the industrial gas feed stream is used as the working gas.