CRYOGENIC SYSTEM FOR PRODUCING ELEVATED PRESSURE NITROGEN

摘要

A cryogenic air separation system for producing elevated pressure nitrogen wherein a portion of the nitrogen product fed to the product compressor (110) downstream of the primary heat exchanger (101) is withdrawn as refrigerant nitrogen from the product compressor (110), preferably from an intermediate point of the product compressor (110), and turboexpanded to generate refrigeration for the system.