A CONTINUOUS PROCESS AND AN APPARATUS FOR THE PREPARATION OF BIODIESEL

The invention provides a process for the preparation of a biodiesel from a feedstock containing a triglyceride by transesterification of the triglyceride with a lower alkyl alcohol. The process comprises mixing the triglyceride with the lower alkyl alcohol in the presence of a catalyst in a high-she...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	WONG, YEW CHOO, LIM, CHEE SIANG
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE ORUNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL 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 FIRELIGHTERS FUELS FUELS NOT OTHERWISE PROVIDED FOR GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS LIQUEFIED PETROLEUM GAS LUBRICANTS METALLURGY NATURAL GAS PEAT PERFUMES PETROLEUM, GAS OR COKE INDUSTRIES PRODUCING (PRESSING, EXTRACTION), REFINING AND PRESERVINGFATS, FATTY SUBSTANCES (e.g. LANOLIN), FATTY OILS AND WAXES,INCLUDING EXTRACTION FROM WASTE MATERIALS REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BYSUBCLASSES C10G, C10K TECHNICAL GASES CONTAINING CARBON MONOXIDE TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE
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Beschreibung
Zusammenfassung:	The invention provides a process for the preparation of a biodiesel from a feedstock containing a triglyceride by transesterification of the triglyceride with a lower alkyl alcohol. The process comprises mixing the triglyceride with the lower alkyl alcohol in the presence of a catalyst in a high-shear mixer to form a reaction mixture, heating the reaction mixture in a heater, allowing the heated reaction mixture to react in a reactor to form a first crude transesterification product and glycerol, separating the glycerol from the first crude transesterification product and subjecting the first crude transesterification product to further treatments to obtain the biodiesel. The separation of the glycerol from the crude transesterification product is carried out in the reactor that is configured in a manner that allows the glycerol to be removed continuously from the reactor. L'invention concerne un procédé de préparation d'un biodiesel à partir d'une charge contenant un triglycéride, par la transestérification du triglycéride au moyen d'un alcool alkylique inférieur. Le procédé comporte les étapes consistant à : mélanger le triglycéride et l'alcool alkylique inférieur en présence d'un catalyseur dans un mélangeur à cisaillement élevé pour former un mélange réactionnel ; chauffer le mélange réactionnel dans un réchauffeur ; laisser réagir le mélange réactionnel chauffé dans un réacteur pour former un premier produit de transestérification brut et du glycérol ; séparer le glycérol du premier produit de transestérification brut ; et soumettre le premier produit de transestérification brut à des traitements ultérieurs afin d'obtenir le biodiesel. La séparation du glycérol du produit de transestérification brut est mise en oevre dans le réacteur, qui est conçu pour permettre d'extraire en continu le glycérol du réacteur.