The speed of increasing and decreasing load in air separation?
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I hope an expert can explain, from the perspective of practical operation and process theory, why air separation units cannot reduce their load quickly (with the steam flow rate at the turbine inlet serving as the basis for increasing or decreasing the load)
Firstly, in terms of establishing the distillation operating conditions, it takes time to develop a new material balance. It is precisely because of this issue that time becomes particularly important. Furthermore, artificially adjusting the technique is related to the setting of the reference point. For example, in load reduction regulation, the reference point chosen is either one based on a decrease in the amount of product taken out along with an increase in purity, or it is a reference point set after reducing the air volume while keeping the production volume constant and resulting in a decrease in purity. It is a means of regulating active and passive behaviors. This has an impact on the product’s stability and the time required for adjustment. For reference.