Crude Krypton/Xenon Recovery from a Pumped-LOX ASU Cycle
Publication Date: 2003-Sep-12
The IP.com Prior Art Database
The invention is a method of producing crude Kr/Xe from a pumped-LOX plant. The basic idea is to get the crude Kr/Xe from the LOX at pumped-LOX pressure (e.g. 20 psia to 400 psia), rather than try and recover the crude from the LP column. The stripper column used to remove the methane and recover the crude Kr/Xe operates at pumped-LOX pressure and uses booster air to drive the reboiler. Flowsheet is shown in Figure 1.