Production of pressurized nitrogen by low temperature decomposition of air in a rectifier system comprises condensing no gas from the upper region of a high pressure column with a liquid from a low or high pressure column

摘要

Production of pressurized nitrogen by low temperature decomposition of air in a rectifier system for nitrogen-oxygen removal comprises condensing no gas from the upper region of a high pressure column (10) in indirect heat exchange with a liquid from a low pressure column (11) or from the high pressure column. An independent claim is also included for a device for producing pressurized nitrogen by low temperature decomposition of air in a rectifier system for nitrogen-oxygen removal.