Paraffinic hydroisomerate as a wax crystal modifier
OwnerAdeana Bishop, Loren Ansell +6inventors
InventorsAdeana Bishop, Loren Ansell, W. Genetti, Michel Daage, Daniel Ryan, Eric Sirota, Jack Johnson, Patrick Brant
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Abstract
Heavy fractions of paraffinic lubes produced over dewaxing catalysts are effective as wax crystal modifiers for being hydrocarbons notwithstanding that such heavy fractions have pour points above that of the liquid hydrocarbon.
Claims17
A method for modifying the process by which wax crystals form in a paraffinic containing hydrocarbon liquid when the temperature of the liquid is lowered comprising adding to the liquid an effective amount of a heavy fraction of a paraffinic lube produced over a dewaxing catalyst.
A fuel composition comprising a major amount of a diesel or heating fuel and a heavy fraction of a paraffinic lube produced over a dewaxing catalyst, the heavy fraction being in an amount sufficient to lower the cold filter plugging point of the fuel.
A blend of a first paraffinic containing hydrocarbon liquid and a second paraffinic containing hydrocarbon liquid wherein the second liquid contains a heavy hydrocarbon fraction having a final boiling point greater than 850° F. (454° C.) in an amount greater than that in the first liquid and wherein the amount of the heavy fraction in the total blend is in the range of from about 0.01 to 0.5 parts by weight.
Dependencies are inferred from the claim text.