초록 ▼

A process, apparatus and control methodology for transferring loads between drivers in adjacent refrigeration cycles in a cascaded refrigeration process has been developed thereby enabling more efficient driver operation. Load transfer is effected by cooling the higher boiling point refrigerant liqu

A process, apparatus and control methodology for transferring loads between drivers in adjacent refrigeration cycles in a cascaded refrigeration process has been developed thereby enabling more efficient driver operation. Load transfer is effected by cooling the higher boiling point refrigerant liquid prior to flashing via an indirect heat transfer with the lower boiling point refrigerant vapor in a adjacent cycle prior to compression of said stream.

대표청구항 ▼

In a cascaded refrigeration process, the improvement comprising a process for transferring compressor loads from a driver in a first refrigerant cycle containing a higher boiling point refrigerant to a driver in a second refrigerant cycle containing a lower boiling point refrigerant comprising: (a)

In a cascaded refrigeration process, the improvement comprising a process for transferring compressor loads from a driver in a first refrigerant cycle containing a higher boiling point refrigerant to a driver in a second refrigerant cycle containing a lower boiling point refrigerant comprising: (a) contacting a controlled amount of the higher boiling point refrigerant liquid in the first refrigeration cycle via an indirect heat transfer means with the lower boiling point refrigerant vapor in a second refrigeration cycle thereby producing a cooled refrigerant liquid and a heated refrigerant vapor; (b) flashing said subcooled refrigerant liquid thereby making available additional refrigerative cooling to the first refrigerant cycle; and (c) returning said heated refrigerant vapor to the compressor in the second refrigeration cycle.