FUEL COMPOSITIONS COMPRISING ISOPRENE DERIVATIVES
First Claim
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1. A method for producing a fuel constituent from a bioisoprene composition comprising chemically transforming a substantial portion of the isoprene in the bioisoprene composition to non-isoprene compounds by:
- (a) subjecting the bioisoprene composition to heat or catalytic conditions suitable for isoprene dimerization to produce an isoprene dimer and then catalytically hydrogenating the isoprene dimer to form a saturated C10 fuel constituent;
or(b) (i) partially hydrogenating the bioisoprene composition to produce an isoamylene, (ii) dimerizing the isoamylene with a mono-olefin selected from the group consisting of isoamylene, propylene and isobutene to form a dimate and (iii) completely hydrogenating the dimate to produce a fuel constituent.
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Abstract
The invention provides for methods, compositions and systems using bioisoprene derived from renewable carbon for production of a variety of hydrocarbon fuels and fuel additives.
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Citations
19 Claims
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1. A method for producing a fuel constituent from a bioisoprene composition comprising chemically transforming a substantial portion of the isoprene in the bioisoprene composition to non-isoprene compounds by:
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(a) subjecting the bioisoprene composition to heat or catalytic conditions suitable for isoprene dimerization to produce an isoprene dimer and then catalytically hydrogenating the isoprene dimer to form a saturated C10 fuel constituent;
or(b) (i) partially hydrogenating the bioisoprene composition to produce an isoamylene, (ii) dimerizing the isoamylene with a mono-olefin selected from the group consisting of isoamylene, propylene and isobutene to form a dimate and (iii) completely hydrogenating the dimate to produce a fuel constituent. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 17, 18, 19)
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11. A system for producing a fuel constituent from a bioisoprene composition, wherein a substantial portion of the isoprene in the bioisoprene composition is chemically converted to non-isoprene compounds, the system comprising a bioisoprene composition and:
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(a) (i) one or more chemicals capable of dimerizing isoprene in the bioisoprene composition or a source of heat capable of dimerizing isoprene in the bioisoprene composition; and
(ii) a catalyst capable of hydrogenating the isoprene dimer to form a saturated C10 fuel constituent;
or(b) (i) a chemical capable of partially hydrogenating isoprene in the bioisoprene composition to produce an isoamylene, (ii) a chemical capable of dimerizing the isoamylene with mono-olefins selected from the group consisting of isoamylene, propylene and isobutene to form a dimate and (iii) a chemical capable of completely hydrogenating the dimate to produce a fuel constituent. - View Dependent Claims (12, 13, 14, 15, 16)
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Specification