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US 10,501,698 B1Granted
Countercurrent and cross current high pressure extraction techniques for biodiesel fuel
AssigneeUniversity of South Florida
InventorJames Cameron Walker
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AssigneeUniversity of South Florida
InventorJames Cameron Walker
Estimating the term…
Methods of extracting biodiesel from a mixture of biodiesel and alcohol are provided. The methods can include contacting the mixture of biodiesel and alcohol with a petrodiesel to form a two-phase system including a polar phase and a nonpolar phase, wherein the alcohol preferentially partitions into the polar phase and the petrodiesel and biodiesel preferentially partition into the nonpolar phase, and separating the nonpolar phase from the polar phase to extract the biodiesel. The methods can include using a multi-stage extraction apparatus, for example in countercurrent or crosscurrent extraction arrangement. Methods of making a biodiesel blend are also provided. The methods can include making a biodiesel blend with a biodiesel content from about B2 to about B25.
A method of extracting biodiesel from a mixture of biodiesel and alcohol, the method comprising
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