Progress of Cryogenics and Isotopes Separation


The National Conference with international participation on New Cryogenic and Isotope Technologies for Energy and Environment - EnergEn 2018 is organized by the National Research-Development Institute for Cryogenic and Isotopic Technologies - ICSI Rm. Valcea with the scientific participation of the University of Pitesti and the University of Craiova and will be held at Baile Govora, in 2018.



Claudia David, Liviu Ovidiu Stefan

National Research and Development Institute for Cryogenics and Isotopic Technologies - ICIT Rm. Valcea, code 240050 - Rm. Valcea, Uzinei 4, CP7 Raureni, Valcea, Romania, phone: 0040 250 736979, fax: 0040 250 732746, e-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it ; This e-mail address is being protected from spambots. You need JavaScript enabled to view it


It was analyzed the behavior of the cryogenic distillation column at the influence of an external factor. So, it was considered the non steady state for the column when exist a variation in the control system from the cooling circuit of the cryogenic distillation plant, which determine the fluctuation of the hydrogen level from the cryogenic distillation column condenser. The column has H height and NT theoretical stages, with the feed stream bicompound mixture of tritium and deuterium. The mathematical model for the simulation of the process is based on the equations of balance on the column, for the stages and for the condenser. The results were represented in specific diagrams and plots. Each parameter can offer information about the behavior of the distillation column operated at total reflux with sinusoidal oscillation of the liquid level in condenser. 

KEYWORDS: Hydrogen, distillation, non-steady state, column, condenser