Fat / Oil Splitting Plants


Fat/ Oil Splitting Process



Technical Specifications

Oil Splitting
(DOS Vs Through-put curve specified, for selected feeds) 
SW Concentration
% GLY ex-plitter
maximized up to 18%
Depends on Feed
HP Steam
maximum 140 Kg/ T feed
Depends on Feed
All refined and crude fats
(Palm and derivatives, palm kernel, coconut, mustard, soya etc)
Plus PFAD and distillation residues

Note: DOS is specified for a particular feed and through-put. A higher molecular weight feed will require a longer residence time and therefore a larger splitting volume. By contrast a partially split feed, like PFAD, would require a much smaller residence time in the splitting column.


Critical Parameters for optimising Fat splitting plants

      1)  DOS:

Fat/ Oil Splitting is fundamental to efficient manufacturing of downstream Oleochemicals, fatty acids, fatty alcohols and soaps. ‘Degree Of Split’ (DOS = AV/SV simply described as the % of split fatty acid in the Oil), directly impacts commercially every downstream operation as well as product quality. Higher the degree of split, more the Fatty Acid/ Alcohol produced for commercial use.

2)  Water Usage:

The optimum water flow for the splitting column is based on, the Glycerine content of the input Oil, solubility of water in oil, and presence of impurities. When optimising the Fat/ Oil splitting plants for maximum capacity, it is important to optimize the water flow. Any excess reduces the splitting reaction time.

3)  Crude Fatty Acid (CFA) exit temperature:

Crude Fatty Acid (CFA) exit temperature from the splitter column is another critical parameter. Higher the temperature, higher the HP Steam consumption and hence higher utility costs. Higher temperatures also increase the water dissolved in the CFA exiting, increasing the risk of Glycerine being carried out with Crude Fatty Acid, which inevitably recombines with Fatty acid to reduce distillate yield and give you less amoount of Fatty Acid / Alcohol for commercial use.

4)  HP Steam input guidance:

For best DOS, optimum distribution of High Pressure Steam between Bottom, Middle and Top steam in the splitting column is critical. 

  • Bottom Steam: To bring input oil to temperature of splitting column, provide heat for reaction, and solubalisation netted against heat from outgoing sweet water.
  • Middle Steam: Provide heat of reaction, maintain the optimum temperature for the Splitting reaction.
  • Top Steam: To bring water to temperature of the splitting column, netted against heat from outgoing Crude Fatty Acid and heat of water de-solubalisation.

You can visit our simulator section to understand what we can do for you.

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