Patent ID: 9127594
Filing Date: 2015-09-08
Classification: B63J,F02C,F17C,Y02T

Abstract:
1. A method for regulating a system comprising a supply tank and an apparatus that compresses a cryogenic gas that occurs during storage of a cryogenic liquid contained in the supply tank comprising the steps of: (a) passing the cryogenic gas to a compressor at a temperature of less than −30° C.; and (b) compressing the gas via the compressor to a compressed gas at a pressure of 6 to 50 bar for further use; wherein at least part of the compressed gas is passed back to an intake side of the compressor and cooled via an expander, and wherein the compressed gas is, after leaving a last compressor stage, cooled to a temperature between 10° C. and 80° C. without being liquefied and part of the cooled compressed gas is, without further compression, passed back as a bypass stream to the intake side of the compressor and further cooled down via the expander without being liquefied.