Dear friends

I am working on a case study of dehydration unit of an Oil by vacuum system (Vacuum Pump). The problem is that the water content in raw oil is about 100 ppm and it decreases to 50-60 ppm through Proposed process scheme while the required % of water content after processing will must be less then 20 ppm.

The vacuum they are generated at about -25 CmHg to remove water(65 deg C,boiling Temperature), in my opinion they have to increase the Vacuum above -55 CmHg

So I want suggestions about that case since to increase in vacuum can resolve that problem or go for alternate resources

Thnx