Refining processes for a renewable oil
AssigneeAdvanced Energy Development
InventorsTrevor G. Morgan, Tom Vytlacil, Colby Neeley, Charles Devlin
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Abstract
The invention relates generally to methods of refining a renewable oil, such as a biofuel. In some embodiments, the invention relates to methods for the efficient removal of gums and waxes from a renewable oil.
Claims34
A method of reducing the cloud point of a renewable oil, the method comprising:
- providing a renewable oil, which comprises waxy impurities;
- cooling the renewable oil;
- adding a polymer to the cooled renewable oil:
- mixing the cooled renewable oil and the polymer to form an oil-polymer mixture, which comprises solidified impurities;
- and
- separating at least a portion of the solidified impurities from the oil-polymer mixture to form a refined renewable oil.
A method of reducing the cloud point of a renewable oil, the method comprising:
- providing a renewable oil, wherein the renewable oil comprises phosphorus-containing compounds, free fatty acids, or a combination thereof;
- cooling the renewable oil;
- adding a polymer to the cooled renewable oil;
- binding the polymer to the phosphorus-containing compounds, the free fatty acids, or both the phosphorus-containing compounds and the free fatty acids;
- and
- separating at least a portion of the polymer to form a refined renewable oil.
The method of claim 18, wherein the renewable oil comprises a vegetable oil, an animal oil, or a mixture thereof.
The method of claim 23, wherein the one or more phosphorus-containing compounds comprise hydratable phosphatides, non-hydratable phosphatides, or a mixture thereof.
Dependencies are inferred from the claim text.