C - Chemistry – Metallurgy – 11 – C
Patent
C - Chemistry, Metallurgy
11
C
C11C 3/00 (2006.01) A23K 1/14 (2006.01) C10L 1/02 (2006.01)
Patent
CA 2694015
The invention relates to a method for preparing fatty acid esters particularly used as bio-diesel fuel from whole oleaginous grains, characterised in that it comprises the following successive steps: preheating the whole non-husked grains; flattening the oleaginous grains; drying the flattened grains in order to obtain a water content and a volatile material content between 0.5 and 2.5 %, and preferably between 1.5 % and 2 %; performing a transesterification by contacting the dried, flattened grains with an alcoholic medium in the presence of a catalyst; separating the liquid and solid phases resulting from the transesterification; neutralising the liquid phase from step d); and removing the alcohol and separating the glycerine from the fatty acid esters.
L'invention concerne le procédé de préparation d'esters d'acides gras utilisables notamment comme biodiesel à partir de graines oléagineuses entières, caractérisé en ce qu'il comprend les étapes successives suivantes : - Préchauffage des graines entières non décortiquées - Aplatissage des graines oléagineuses; - Séchage des graines aplaties de manière à obtenir une teneur en eau et en matières volatiles comprise entre 0,5 et 2,5 %, de préférence entre 1,5 % et 2 %; - Transestériffcation par mise en contact des graines aplaties séchées avec un milieu alcoolique en présence d'un catalyseur; - Séparation des phases liquide et solide résultant de la transestérifîcation; - Neutralisation de la phase liquide issue de l'étape d); et - Elimination de l'alcool et séparation de la glycérine des esters d'acides gras.
Esterez Jean Pierre
Hoang Le Chien
Magne Julien
Algebre
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
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