Effect of vacuum tower skirt seating height on the circulation pump

2016-09-14View Original

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I just saw a post stating that the column is a high-vacuum column and the reboiler is a forced-circulation reboiler; since the bottom of the column contains saturated liquid, the height of the column bottom (the skirt height) has no effect on the forced-circulation pump. Is this correct?

Reply #22016-09-15

Of course it has an impact; one must consider that NPSHa is greater than the pump’s NPSHr

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Effect of vacuum tower skirt seating height on the circulation pump

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