AIR SEPARATION PROCESS FOR THE PRODUCTION OF KRYPTON AND XENON

摘要

The invention deals with an air separation process for the production of krypton and xenon.
A liquid oxygen-rich stream (73) is firstly stripped of hydrocarbon in a stripping column (40) and the resulting liquid oxygen-rich stream (90) containing concentrated krypton and xenon is converted into a nitrogen-rich stream (100) containing krypton and xenon in an exchange column (50).
This process allows a safely and efficiently production of krypton and xenon while minimizing the main plant burden.