Національний Університет Біоресурсів І Природокористування України
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A process for the preparation of diesel biofuel of flax-seed oil involves processes of filtration with separation of attendant impurities, neutralization of free fatty acids, oil washing with salt solution and water, decontamination and reesterification. Flax-seed oil with content of free fatty acids of 40-95 mg KOH/g is used, and neutralization thereof is performed by double esterification with strong sulphuric acid in amount of 10% of weight for 2 hours at a temperature of 60-65°C with constant stirring with separation of water and alcohol. Methanol and sulphuric acid are taken in mole ratio of 9:1, and refined oil is fed for reesterification with addition of methanol and catalyst KOH.
UAU201503565U2015-04-162015-04-16Process for the preparation of diesel biofuel of flax-seed oil
UA102802U
(en)