Renewable compositions
First Claim
Patent Images
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) 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;
whereby the product of step (f) itself meets the requirements of at least one of ASTM D4814, ASTM D975, ASTM D910, or ASTM D1655, or a blend of at least 10% of the product of step (f) with a mixture of hydrocarbons meets the requirements of at least one of ASTM D4814, ASTM D975, ASTM D910 or ASTM D1655.
13 Assignments
1 Petition
Accused Products
Abstract
The present invention is directed to renewable compositions derived from fermentation of biomass, and integrated methods of preparing such compositions.
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Citations
23 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) 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; whereby the product of step (f) itself meets the requirements of at least one of ASTM D4814, ASTM D975, ASTM D910, or ASTM D1655, or a blend of at least 10% of the product of step (f) with a mixture of hydrocarbons meets the requirements of at least one of ASTM D4814, ASTM D975, ASTM D910 or ASTM D1655. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification