Amount of liquid air and liquid nitrogen fed into the upper column

If one is a device user, it is sufficient to focus only on the data control of process operating conditions. No calculations from you are needed, because that is the designers’ job. As long as the control parameters of each component are properly managed as required, everything will go smoothly. For example, in response to your question, adjustments to the controls need to be made step by step: first adjust the resistance, then the purity level. It is necessary to work with the lower column before moving on to the upper column; first use pure liquid nitrogen from the lower column, and then focus on the purity of liquid oxygen in the upper column. These control points are used to determine whether the processes in each section are operating within the specified ranges. The purity of liquid nitrogen in the lower column serves as a reference point for controlling that column; it is adjusted to meet the process requirements based on the concept of reflux ratio. In the upper column, on the other hand, the purity of liquid oxygen from the main cooler is used as the standard, and it must not be too high nor too low. For reference. Furthermore, based on an understanding of the principles behind the processes and the operation of the equipment, further research is conducted on how to ensure safe production over long periods of time with stability.