Biodiesels useful for improving cloud point
AssigneeChevron U.S.A. Inc.
InventorStephen J. Miller
Life of this patent
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Abstract
The instant invention pertains to new biodiesels which may be blended with petrodiesel. The biodiesels may comprise a fatty acid C1-C2 alkyl ester and a fatty acid branched C3-C4 alkyl ester. Blends of the novel biodiesel and petrodiesel often exhibit advantageous cloud point properties.
Claims17
A biodiesel composition comprising at least about 50 percent by volume fatty acid methyl ester and from about 10 to about 40 volume percent of fatty acid isopropyl ester based on the total volume of the biodiesel composition as measured in degrees.
The composition of claim 1 wherein the cloud point of a blend of 10 percent by liquid volume of the biodiesel composition of claim 1 and 90 percent by liquid volume petrodiesel is at least about 2° C. or less than the cloud point of a comparable blend of 10 percent by liquid volume of a fatty acid methyl ester and 90 percent by liquid volume petrodiesel.
The composition of claim 1 wherein the cloud point of a blend of 10 percent by liquid volume of the biodiesel composition of claim 1 and 90 percent by liquid volume petrodiesel is at least about 3° C. or less than the cloud point of a comparable blend of
- 10 percent by liquid volume of a fatty acid methyl ester and 90 percent by liquid volume petrodiesel.
A composition comprising petrodiesel and from about 4 to about 22 volume percent biodiesel based on the total volume of the composition, wherein the biodiesel comprises fatty acid isopropyl ester and fatty acid methyl ester and wherein said fatty acid isopropyl ester comprises from about 10 to about 40 volume percent of the biodiesel based on the total volume of biodiesel.
A composition comprising bodiesel and petrodiesel,
- wherein the petrodiesel comprises at least about 78% by volume based on the total volume of the composition, and
- wherein the biodiesel comprises fatty acid methyl ester and from about 5 to about 40 volume percent of fatty acid isopropyl ester based on the total volume of the biodiesel.
Dependencies are inferred from the claim text.