OleochemicalsFractional Distillation Plant

Fractional Distillation Plant

Fractional Distillation facilitates the separation of Fatty Acid mixtures into composite cuts or even individual components.

The fatty acids are fractionated in vacuum columns having structured packing which allow high separation efficiency and low pressure drop. Falling film are provided to gently evaporate the liquid phase and vapors are condensed in surface condenser. The operation depend on the particular fractionation separation.

Crude fatty acids is dried, degassed and then evaporated in fractionation column 1 under a residual vacuum. Fraction 1 is take out from the column top. The bottom product of column 1 is transferred to the feed point of column 2 and evaporated under vacuum. The surface condenser of column 2 is for heat recovery by steam generation fallowed by a final condenser.

First Pre-cut Column separate fatty acid chain: C8-C12

Second Column separate fatty acid chain: C14-C12or C12-C14-C16

Third Column separate fatty acid chain: C16-C18