[newspanky]

Would the reduction in feed rate to my distillation tower affect the relationship that properties have on each other? For example in normal operation, the increase in overhead pressure usually results in my bottom impurities to increase. However, in the case of a reduction in the feed rate to the tower, would there be a possibility that this relationship will not hold? I have tried trending PHD data and somehow this might be true but could anyone enlighten me on the theory aspect of this? Thanks in advance.

[curiouscat]

PHD?

[newspanky]

Plant historic data sorry for the jargon. This has more or less been proved correct under then actual plant conditions but I'm looking for theory facts to back it up. At a loss.

[curiouscat]

(1) Check if you are close to flooding limits

(2) Is there automatic control loops on the column. What's control logic.

(3) Reducing feed but if you keep refluxing same amount effectively your reflux ratio went up. That will improve seperation.

(4) Is this a vacuum column?