High density diamondoid fuels from renewable oils, triglycerides, and fatty acids
AssigneeThe United States of America as represented by the Secretary of the Navy
InventorBenjamin G. Harvey
Life of this patent
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Abstract
A method for making high density fuels including, heating a renewable plant oil, triglyceride, or fatty acid with at least one first acid catalyst to generate a first mixture of alkyladamantanes, increasing reaction time or adding at least one second catalysts to a first mixture of alkyladamantanes to produce a second alkyladamantane mixture, separating methyl, ethyl, propyl, and/or butyl adamantanes from a second alkyladamantane mixture to produce a third adamantane mixture to produce fuels.
Claims15
A method for making high density diesel fuels, comprising:
- heating a renewable plant oil, triglyceride, or fatty acid with at least one first acid catalyst to generate a first mixture of alkyl adamantanes with between 11 and 17 carbon atoms;
- separating C14-C17 alkyl adamantanes from said first alkyl adamantane mixture by fractional distillation to produce a C14-C17 alkyl adamantane mixture and a C11-C14 alkyl adamantane mixture;
- and
- blending said C14-C17 alkyl adamantane mixture with other petroleum based or renewable fuels to produce high density diesel fuels.
A method for making high density fuels, comprising:
- heating a renewable plant oil, triglyceride, or fatty acid with at least one first acid catalyst to generate a first mixture of alkyl adamantanes with between 11 and 17 carbon atoms;
- cracking the mixture of alkyl adamantanes by continued heating and/or addition of a second catalyst to produce a second alkyl adamantane mixture;
- fractionally distilling said second alkyl adamantane mixture to produce a third alkyl adamantane mixture enriched in C11-C14 alkyl adamantanes;
- and
- isolating low molecular weight cracking products having one to eight carbon atoms from said second alkyl adamantane mixture to produce a naptha stream.
Dependencies are inferred from the claim text.