| 摘要 |
PURPOSE: Liquefaction of industrial gas is provided, wherein the gas is brought from ambient temperature to a cryogenic temperature to effect the liquefaction. CONSTITUTION: A method for liquefying an industrial gas comprising: (A) compressing a multicomponent refrigerant fluid comprising at least one component from the group consisting of fluorocarbons, hydrofluorocarbons and fluoroethers and at least one component from the group consisting of fluorocarbons, hydrofluorocarbons, fluoroethers and atmospheric gases; (B) cooling the compressed multicomponent refrigerant fluid to at least partially condense the multicomponent refrigerant fluid; (C) expanding the cooled compressed multicomponent refrigerant fluid to generate refrigeration; (D) warming the expanded multicomponent refrigerant fluid by indirect heat exchange with the compressed multicomponent refrigerant fluid to effect said cooling of the compressed multicomponent refrigerant fluid; and (E) bringing the expanded multicomponent refrigerant fluid into heat exchange relation with industrial gas and warming the expanded multicomponent refrigerant fluid by indirect heat exchange with said industrial gas to liquefy the industrial gas.
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