FIELD: refrigerating engineering.
SUBSTANCE: proposed method is used for cooling the gaseous materials at temperature range from 94°C to -129°C; proposed method includes raising temperature of liquefied gaseous material obtained in cooling zone to temperature of from -129°C to -154°C, reduction of pressure of liquefied gaseous material obtained in cooling zone for lowering the temperature of this material below -154°C and obtaining evaporated gas, separation of evaporated gas from liquefied gaseous material in separator reservoir, heating a part of evaporated gas to 4°C to 54°C, compression of part of evaporated gas to pressure exceeding the pressure of gaseous material delivered to cooling zone and mixing the part of compressed heated evaporated gas with gaseous material delivered to cooling zone.
EFFECT: enhanced efficiency and controllability of process.
9 cl, 4 dwg
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