Production of fatty acid alkyl esters
AssigneeThe United States of America as represented by the Secretary of Agriculture
InventorsMichael J. Haas, William N. Marmer, Thomas A. Foglia
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Abstract
The present invention relates to a method for producing fatty acid alkyl esters, involving transesterifying a feedstock containing lipid-linked fatty acids with an alcohol and an alkaline catalyst to form fatty acid alkyl esters. The feedstock has not been previously treated to release the lipid components of said feedstock, or the feedstock has been previously treated to release lipid components and the feedstock contains residual lipids (e.g., <about 30% of the original content of lipids).
Claims49
A method for producing fatty acid alkyl esters, comprising transesterifying a feedstock containing lipid-linked fatty acids with an alcohol and an alkaline catalyst to form fatty acid alkyl esters, wherein (I) said feedstock has not been previously treated to release the lipid components of said feedstock and the yield of said fatty acid alkyl esters is at least 90% of theoretical maximum or (ii) said feedstock has been previously treated to release lipid components and said feedstock contains residual lipids and the yield of said fatty acid alkyl esters is at least 75% of theoretical maximum;
- and wherein said feedstock excludes crude or refined isolated fats and oils from plant seeds or fruits or crude or refined animal products.
A method for producing fatty acid alkyl esters, comprising transesterifying a feedstock containing lipid-linked fatty acids with an alcohol and an alkaline catalyst to form fatty acid alkyl esters, wherein said feedstock has not been previously treated to release the lipid components of said feedstock and the yield of said fatty acid alkyl esters is at least 90% of theoretical maximum;
- and wherein said feedstock excludes crude or refined isolated fats and oils from plant seeds or fruits or crude or refined animal products.
A method for producing fatty acid alkyl esters, comprising transesterifying a feedstock containing lipid-linked fatty acids with an alcohol and an alkaline catalyst to form fatty acid alkyl esters, wherein said feedstock has been previously treated to release lipid components and said feedstock contains residual lipids and the yield of said fatty acid alkyl esters is at least 75% of theoretical maximum;
- and wherein said feedstock excludes crude or refined isolate fats and oils from plant seeds or fruits or crude or refined animal products.
Dependencies are inferred from the claim text.