Title :
The experimental identification of the separation cascade of (18O) in the NO, NO2 — H2O, HNO3 system
Author :
Secara, M. ; Abrudean, Mihail ; Boca, Maria Loredana ; Croitoru, B.
Author_Institution :
Dept. of Autom., Tech. Univ. of Cluj-Napoca, Cluj-Napoca, Romania
Abstract :
Oxygen has three stable isotopes (16O, 17O, 18O) with a ratio of natural concentration of (99.759%, 0.037% and 0.204%). There are lot of applications in which (18O) is used, so it is necessary to produce it in industrial scale. This isotope can be separated by using various methods, one of them being the chemical exchange between nitrogen oxides (NOx) and nitric acid (HNO3). After a short description of the 18O separation process plant, the paper focuses on the experimental identification of the (18O) separation cascade, the first order models and the simulation of the cascade behavior.
Keywords :
chemical engineering; isotopes; separation; H2O; HNO3; NO; NO2; cascade behavior; chemical exchange; first order models; natural concentration; nitric acid; nitrogen oxides; separation cascade; separation process plant; stable isotopes; Chemicals; Filling; Inductors; Isotopes; Mathematical model; Nitrogen; Steel; identification; isotope (18O); simulation;
Conference_Titel :
Automation, Quality and Testing, Robotics, 2014 IEEE International Conference on
Conference_Location :
Cluj-Napoca
Print_ISBN :
978-1-4799-3731-8
DOI :
10.1109/AQTR.2014.6857926
