PROCESS FOR PRETREATING VEGETABLE OILS OR ANIMAL FATS INTENDED FOR PROCESSES OF TRANSFORMATION INTO BIOFUELS

A method for pretreating and purifying crude bio-feedstocks intended for processes of transformation into biofuels is described, said method being characterized in that said crude bio-feedstock is subjected, in the form of an aqueous emulsion to a heat treatment by passing it through a coil visbreak...

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Bibliographische Detailangaben
Hauptverfasser:	PASINI, THOMAS, BALDIRAGHI, FRANCO
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES CANDLES CHEMISTRY DETERGENTS ESSENTIAL OILS FATS, OILS OR FATTY ACIDS BY CHEMICAL MODIFICATION OF FATS,OILS, OR FATTY ACIDS OBTAINED THEREFROM FATTY ACIDS FROM FATS, OILS OR WAXES FATTY ACIDS THEREFROM FOODS OR FOODSTUFFS FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BYSUBCLASSES A23B - A23J HUMAN NECESSITIES METALLURGY PERFUMES PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL PRODUCING (PRESSING, EXTRACTION), REFINING AND PRESERVINGFATS, FATTY SUBSTANCES (e.g. LANOLIN), FATTY OILS AND WAXES,INCLUDING EXTRACTION FROM WASTE MATERIALS THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OFNUTRITIVE QUALITIES, PHYSICAL TREATMENT THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
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Beschreibung
Zusammenfassung:	A method for pretreating and purifying crude bio-feedstocks intended for processes of transformation into biofuels is described, said method being characterized in that said crude bio-feedstock is subjected, in the form of an aqueous emulsion to a heat treatment by passing it through a coil visbreaker furnace at a temperature greater than 100°C and a pressure greater than 3 barg, possibly in an inert atmosphere, for a pre-established contact/ residence time, the effluent exiting said reactor being subsequently subjected to at least a non-absorbent physical separation to separate said bio-feedstock from metal contaminants and phosphorus. L'invention concerne un procédé de prétraitement et de purification de bio-charges brutes destinées à des processus de transformation en biocarburants, ledit procédé étant caractérisé en ce que ladite bio-charge brute est soumise, sous la forme d'une émulsion aqueuse, à un traitement thermique en la faisant passer dans un four de viscoréduction à serpentin à une température supérieure à 100 °C et à une pression supérieure à 3 barg, éventuellement sous atmosphère inerte, pendant un temps de contact/temps de séjour préétabli, l'effluent sortant dudit réacteur étant ensuite soumis à au moins une séparation physique non absorbante pour séparer ladite bio-charge de contaminants métalliques et de phosphore.