C - Chemistry – Metallurgy – 11 – C
Patent
C - Chemistry, Metallurgy
11
C
C11C 3/00 (2006.01) C11B 13/02 (2006.01) C11C 1/08 (2006.01) C11C 1/10 (2006.01)
Patent
CA 2563301
The present invention is directed to a method or preparing fatty acid alkyl esters from fatty acids contained in co-product streams, or waste or recycled fatty acid stock. The present method utilizes an acidic resin to convert the fatty acid stock into esters. The present method encompasses the use of reactive simulated moving bed chromatography, wherein above about 95 percent of the fatty acid stock is converted to fatty acid alkyl esters. The present method has been optimized to separate the ester product from the raffinate stream formed during the chromatographic process, thereby improving the yield of the esterification and preventing acid hydrolysis of the ester.
Un procédé de préparation d'alkyl esters d'acides gras provenant d'acides gras contenus dans des écoulements de coproduits, ou à partir d'un stock d'acides gras recyclés ou résiduels. Le procédé utilise une résine acide pour convertir le stock d'acides gras en esters. Le procédé utilise une chromatographie à lit en déplacement simulée réactive, dont au moins environ 95 % du stock d'acides gras est converti en alkyl ester d'acides gras. Le procédé a été optimisé pour séparer le produit ester du produit raffiné s'écoulant formé pendant le procédé chromatographie, ce qui a pour effet d'améliorer le rendement d'estérification et d'éviter l'hydrolyse acide de l'ester.
Geier Douglas F.
Hilaly Ahmad K.
Soper John G.
Archer-Daniels-Midland Company
Goudreau Gage Dubuc
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