METHOD AND DEVICE FOR CLEANING TALL OIL Russian patent published in 2016 - IPC C11B13/00 

FIELD: technological processes.

SUBSTANCE: invention relates to method and device for cleaning material for biofuel production and components thereof. Method of cleaning tall oil includes evaporating tall oil in a first evaporation step to produce a first fraction comprising hydrocarbons having a boiling point of up to 250 °C at normal pressure and water and a second fraction comprising fatty acids, resin acids, neutral substances and residue components, wherein evaporation step is performed at temperature from 50 to 250 °C and pressure from 5 to 100 mbar. Evaporating said second fraction in at least one further evaporation step to produce a third fraction comprising fatty acids, resin acids and neutral substances having a boiling point under 500 °C at normal pressure, and a residue fraction. After evaporation of first fraction, third fraction and residue fractions are separated.

EFFECT: invention increases output of biofuel, and improves quality thereof.

27 cl, 2 dwg, 2 ex