Abstract
This paper presents a dynamic simulation model and the relation between operating condition and argon concentration of product gas for an air separation plant.
The conclusion drawn by the analysis are as follows:
(1) Even if the number of tray for argon column increases or decreases, concentration distribution near the top and the bottom is kept constant.
(2) The maximum concentration of argon is influenced considerably by nitrogen concentration of feed gas which is provided to the argon column.
(3) The argon concentration in the top portion of the argon column increases when a small amount of gas is discharged from there.
(4) The argon concentration of product gas decreases when argon flow rate from middle portion of the argon column increases.
