Observer based safe operation of the ¹³C cryogenic separation column

Operational model of the ¹³C isotope separation column

“…Some approach on the ( 13 C) isotope separation column modeling and control can be found in [5], [6] and [9]. Unlike the studied papers, this work provides an extended multi input multi output mathematical model with the corresponding LabVIEW™ implementation.…”

Monitoring and control of liquid nitrogen level of the ¹³C separation column using NI PXI-1031

“…The body of the column is composed from a vertical pipe with the length of some meters and centimeters in diameters and inside take place the process isotopic enrichment for (¹³C). A special packing fills up the most part of the column that allowing a good contact between liquid phase and gaseous phase, figure 1 [5,6]. The packing is chosen depending on the type column, the column "charge" and the separation process that take place inside.…”

“…If both liquid and gaseous phase are in contact, then performs a process of isotopic enrichment for (¹³CO) in liquid phase, due to its reduced volatility, by a lower vapor pressure (p 2°) and decrease of the concentration of (¹³CO), in the gaseous phase [5].…”

“…The whole process of isotopic separation must be carefully controlled and monitored in order to avoid any disturbances that could compromise the operation of obtaining the ( 13 C) isotope [5].…”

“…On the other hand, substance that has a high concentration in (¹³C) proves different physical or chemical properties [5].…”