REFRIGERATION PROCESS AND SYSTEM FOR RECOVERING COLD FROM METHANE BY REFRIGERANTS

摘要

This refrigeration system comprises a plurality of exchangers (E1, E2, E3) in a cascade, each of said exchangers comprising; - a flow (150) of cold-producing liquefied methane, - a high-pressure flow (122) of a two-phase mixture of refrigerants that gives up its heat and that comprises refrigerants having a low standard boiling point, and - a low-pressure flow (100) of a two-phase mixture of said cold-producing refrigerants.