I am trying to recover liquid CO2 from a mixture of 0.6 CO2, 0.3 N2, and 0.1 O2. My aim is to recover about 99% liquid CO2 at the bottom of the column and make sure the amount of gaseous CO2 leaving from the top of the column is minimal compared to N2 and 02. Also the column is a stripping column so there isn’t a condenser at the top of the column and my feed is entering at the top of the column. The major challenge I’m facing currently is to find what temperature and pressure my feed should be to give me the optimal product I desire.