Renewable Compositions
First Claim
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1. A process for preparing renewable hydrocarbons comprising:
- (a) treating biomass to form a feedstock;
(b) fermenting the feedstock with one or more species of microorganism, thereby forming one or more C2-C6 alcohols;
(c) dehydrating at least a portion of the one or more C2-C6 alcohols obtained in step (b), thereby forming a product comprising one or more C2-C6 olefins;
(d) isolating the one or more C2-C6 olefins;
(e) oligomerizing at least a portion of the one or more C2-C6 olefins isolated in step (d), thereby forming a product comprising one or more C6-C24 unsaturated oligomers; and
(f) optionally hydrogenating at least a portion of the product of step (e) in the presence of hydrogen, thereby forming a product comprising one or more C6-C24 saturated alkanes.
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Abstract
The present invention is directed to renewable compositions derived from fermentation of biomass, and integrated methods of preparing such compositions.
174 Citations
43 Claims
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1. A process for preparing renewable hydrocarbons comprising:
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(a) treating biomass to form a feedstock; (b) fermenting the feedstock with one or more species of microorganism, thereby forming one or more C2-C6 alcohols; (c) dehydrating at least a portion of the one or more C2-C6 alcohols obtained in step (b), thereby forming a product comprising one or more C2-C6 olefins; (d) isolating the one or more C2-C6 olefins; (e) oligomerizing at least a portion of the one or more C2-C6 olefins isolated in step (d), thereby forming a product comprising one or more C6-C24 unsaturated oligomers; and (f) optionally hydrogenating at least a portion of the product of step (e) in the presence of hydrogen, thereby forming a product comprising one or more C6-C24 saturated alkanes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 26, 27, 28, 29, 30, 31, 35, 36, 37)
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20. A process for preparing a renewable aromatic compound, comprising:
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(i) treating biomass to form a feedstock; (ii) fermenting the feedstock with one or more species of microorganism, thereby forming one or more C2-C6 alcohols; (iii) dehydrating at least a portion of the one or more C2-C6 alcohols obtained in step (ii), thereby forming a product comprising one or more C2-C6 olefins; (iv) isolating the one or more C2-C6 olefins; (v) optionally oligomerizing the one or more C2-C6 olefins to one or more dimers and/or one or more trimers of the C2-C6 olefins; (vi) aromatizing one or more C2-C6 olefins from step (iv) or one or more dimers and/or one or more trimers of the C2-C6 olefins of step (v), thereby forming a product comprising C6-C14 aromatic hydrocarbons, and hydrogen; and (vii) optionally oligomerizing the product of step (vi) in the presence of the one or more C2-C6 olefins of step (v) to form a product comprising one or more C8-C16 aromatic hydrocarbons. - View Dependent Claims (21)
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22. A process for preparing renewable oxidized hydrocarbons comprising:
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(A) treating biomass to form a feedstock; (B) fermenting the feedstock with one or more species of microorganism, thereby forming one or more C2-C6 alcohols; (C) dehydrating at least a portion of the one or more C2-C6 alcohols obtained in step (b), thereby forming a product comprising one or more C2-C6 olefins; (D) isolating the one or more C2-C6 olefins; and (E) oxidizing the one or more C2-C6 olefins of step (c) to form at least one oxidized hydrocarbon. - View Dependent Claims (23, 24, 25)
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- 32. A biofuel or biofuel precursor comprising at least about 1% renewable C8-C24 branched aliphatic hydrocarbons.
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38. A renewable gasoline or gasoline precursor comprising:
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about 50% to about 80% isooctane; about 0% to about 10% isooctene; about 1% to about 3% isobutylene; and about 10% to about 20% BTEX.
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39. A renewable diesel fuel or diesel fuel precursor comprising:
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about 50% to about 100% of one or more C12-C20 aliphatic hydrocarbons; wherein at least a portion of said C12-C20 aliphatic hydrocarbons comprise monomethyl alkanes.
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- 40. A renewable jet fuel or jet fuel precursor comprising a mixture of aromatic hydrocarbons and C11-C14 aliphatic hydrocarbons.
Specification