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US 11,117,847 B1Granted
High density turbine and diesel fuels derived from adamantane
AssigneeThe United States of America as represented by the Secretary of the Navy
InventorBenjamin G. Harvey
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Abstract
In the present method a reaction mixture is comprised of a source of adamantane, mixed with an alkane or cycloalkane. A Lewis acid catalyst is added to the reaction mixture which is heated and then purified. The resulting alkyl diamondoid mixtures have significantly higher densities and volumetric net heats of combustion while maintaining low viscosities which allow for use at low temperature.
Claims20
A method for synthesizing an alkyl-adamantane mixture, comprising:
- providing a reaction mixture of a source of adamantane with at least one alkane and a Lewis acid catalyst;
- reacting the mixture by heating the reaction mixture to produce a mixture of alkyl adamantanes;
- removing unreacted at least one alkane by distillation;
- and
- removing unreacted adamantane via distillation, sublimation, or crystallization.
2 more elements
Dependencies are inferred from the claim text.