PROCESS FOR A MORE EFFICIENT LIQUEFACTION OF A LOW-BOILING GASEOUS MIXTURE BY CLOSELY MATCHING THE REFRIGERANT WARMING CURVE TO THE GASEOUS MIXTURE COOLING CURVE

摘要

Gases volatilizing from liquefied nitrogen-containing natural gas are condensed efficiently employing a closed nitrogen refrigeration cycle by first cooling the natural gas with nitrogen which has been at least partially condensed by isenthalpic expansion and further cooling the natural gas with gaseous nitrogen which has been isentropically expanded.