Mathematical Model of Low-Temperature Air Rectification Process Factored in Non-stationary of Thermal and Physical Characteristics

Abstract

This paper considers a mathematical model of the low-temperature air rectification process. The model is based on balance equations for a low-boiling component on contact devices and on the laws of the phase transition for a binary mixture of nitrogen and oxygen. This model allows us to estimate the target product concentration in real time, taking into account the non-stationarity of the main thermophysical characteristics of the processing medium. The results of the computational experiment in form of the nitrogen concentration dynamics on mass transfer devices are presented