Eastorca,
The true vapour pressure at the storage temperature is an important process parameter for liquid stored in floating roof tanks. High vapour pressure can cause vapour breakout under the roof which can cause the roof to tilt or partially sink.
I once had a good paper by an engineer in Chicago Bridge & Iron, who invented the floating roof tank. Unfortunately I can't find my copy, but from memory he advised a maximum TVP of 12 psia at the storage temperature. If you use the search feature on this forum you will find links to earlier posts on the forum on floating roof tanks which will help you.
A fixed roof tank will allow the condensate to go offspec on vapour pressure while production continues. If you use a floating roof tank you will have to carefully consider if you need to build an off-spec tank as well (fixed roof) and route the product there if there is a problem in the stabiliser. You can avoid this by careful online monitoring of the vapour pressure and by having a secure heating utility for the reboiler.
Paul