Preparation of fatty acid esters of glycerol formal and its...

Details Preparation of fatty acid esters of glycerol formal and its... Preparation of fatty acid esters of glycerol formal and its...

C - Chemistry, Metallurgy

10

L

C10L 1/18 (2006.01)

Patent

CA 2657431

This invention describes the preparation of fatty acid esters of glycerol formal either by a triglyceride transesterification process or, alternatively, by an esterification process of fatty acids previously obtained from the hydrolysis of triglycerides (fat splitting), with glycerol formal in the presence of an acid or basic catalyst. Also the invention describes the use of these fatty acid esters of glycerol formal prepared by said process as biofuel. In an embodiment, such biofuel is used in the preparation of other biofuels by its mixture with a product selected from a group formed by: glycerol formal, biodiesel, petrol-derived diesel, and mixtures thereof. The biofuels thus obtained are characterised to allow the complete incorporation of the glycerol obtained in the current biodiesel production process in a biodiesel fuel.

La présente invention concerne la préparation d'esters d'acide gras de glycérol formal, soit par un procédé de transestérification de triglycérides, soit pas un procédé d'estérification d'acides gras auparavant obtenus par hydrolyse de triglycérides (fractionnement de corps gras), avec du glycérol formal en présence d'un catalyseur acide ou basique. L'invention concerne également l'utilisation de ces esters d'acide gras de glycérol formal préparés par ledit procédé en tant que biocarburants. Selon un mode de réalisation, un tel biocarburant est utilisé dans la préparation d'autres biocarburants en le mélangeant avec un produit choisi dans le groupe formé par : le glycérol formal, le biodiesel, le diesel dérivé d'essence et leurs mélanges. Les biocarburants ainsi obtenus sont caractérisés en ce qu'ils permettent l'incorporation complète du glycérol obtenu dans le procédé actuel de production de biodiesel dans un carburant biodiesel.

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