Pressure stabilization in the distillation column of a transportable gas station for nitrogen production

When energy-saturated continuously running units run aperiodic processes and equipment, thermodynamic parameters of material flows may be disturbed. This paper considers transportable gas stations and dwells upon stabilizing distillation columns for making liquefied nitrogen; pressure stabilization is necessary to optimize the air-separation unit when the throttle feed flow is exposed to a thermal disturbance caused the air cleaning absorbers switching to parallel operation. The research team tested a TKDS-100V gas production station and ran simulations in MATLAB/Simulink to identify the patterns in the pressure in the nitrogen-producing distillation column. The paper thus substantiates a method for pressure stabilization, which is based on temporary cessation of distillate outtake.