Properties of Crude Palm Oil (Press Liquor) and Water Dilution at Press Station

Undiluted Crude oil from screw press :
i)    Oil     - 55%
ii)   Water - 35%
iii)  Solid - 10%

Diluted Crude oil from screw press (41% water addition) :
i)   Oil     - 39%
ii)  Water - 54%
iii) Solid  - 7%

Press liquor = 35% to FFB
100 tonnes of FFB will produce 35 tonnes of Press liquor

Water Dilution

Water dilution to press liquor is 41%
41% of 35 tonnes press liquor is 14.35 tonnes of water
(41 x 35 / 100)

By adding 41% hot water (dilution water) to crude oil from press :

Total sample now become 141% (addition of water to sample is 100 + 41 = 141%)
41 + 35 = 76% (35% water in undiluted press liquor)
76/141 x 100 = 53.9% water
55/141 x 100 = 39.0% oil (55% oil in undiluted liquor)
10/141 x 100 = 7.09% solid (10% solid in undiluted liquor)

Refer to the properties of diluted crude oil from press

The correct water dilution to press liquor should be 41%


Source : MPOB