Method for fractionating grease trap waste and uses of...

Details Method for fractionating grease trap waste and uses of... Method for fractionating grease trap waste and uses of...

C - Chemistry, Metallurgy

11

B

C11B 13/00 (2006.01) B01D 3/38 (2006.01) C10L 1/02 (2006.01) C11C 1/00 (2006.01) C11C 1/10 (2006.01) C11C 3/00 (2006.01) C11C 3/12 (2006.01) B01D 3/14 (2006.01)

Patent

CA 2466834

A process for producing unsaturated and saturated free fatty acid from trap oils, trap greases, brown greases and grease trap waste as starting material. The process consist in subjecting the starting material to a pretreatment, a first purification step, a fractionation step, a second purification step and eventually a hydrogenation step. Methyl esters of unsaturated and saturated free fatty acids, oleic acid and stearin is obtained from this process.

L'invention concerne un procédé permettant de produire des acides gras libres insaturés et saturés à partir d'huiles collectées, de graisses collectées, graisses brunes, de déchets de collecteurs de graisse en tant que produit de départ. Le procédé décrit dans cette invention consiste à soumettre le produit de départ à un prétraitement, à une première étape de purification, à une étape de fractionnement, à une seconde étape de purification et, éventuellement, à une étape d'hydrogénation. Ce procédé permet d'obtenir des esters méthyliques d'acides gras libres insaturés et saturés, d'acide oléique et de stéarine.

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