Experimental Identification of the ¹³C Isotope Separation Process by Cryogenic Distillation on a Two-Column Separation Cascade

摘要

The paper presents the ¹³C isotope separation cascade by cryogenic distillation of carbon monoxide at 81 K. It shows the performance of the columns separations for the total reflux (zero production) and feed regimes. The separation process was identified by drawing the most probable curvesfor the variation of the ¹³C concentration over time, the time constant and the corresponding transfer function were determined. The transfer function obtained, which is proportional and of the first order, can be used for controlling and operating the separation cascade at full reflux or during production mode.