Methods and Compositions for the Recombinant Biosynthesis of N-Alkanes
The present disclosure identifies methods and compositions for modifying photoautotrophic organisms as hosts, such that the organisms efficiently convert carbon dioxide and light into n-alkanes, and in particular the use of such organisms for the commercial production of n-alkanes and related molecules.
1 . A fuel composition comprising a mixture of alkanes, wherein the mixture comprises pentadecane, hexadecane, and heptadecane, wherein heptadecane and pentadecane are predominant in the mixture, and wherein at least a portion of the carbon used as raw material of the alkanes in the mixture is inorganic carbon.
2 . The fuel composition of claim 1 , wherein the fuel composition further comprises nonadecene.
3 . The fuel composition of claim 1 , wherein the fuel composition further comprises tridecane.
4 . The fuel composition of claim 1 , wherein the fuel composition further comprises tetradecane.
5 . The fuel composition of claim 1 , wherein the fuel composition is a low-sulfur fuel composition.
6 . The fuel composition of claim 1 , wherein the fuel composition is a carbon-neutral fuel composition.
7 . The fuel composition of claim 1 , wherein the fuel composition has a higher δ p than a comparable fuel composition made from fixed atmospheric carbon or plant-derived biomass.
8 . The fuel composition of claim 1 , wherein the fuel composition further comprises diesel.
9 . The fuel composition of claim 1 , wherein the inorganic carbon is carbon dioxide.
10 . A fuel composition comprising a mixture of alkanes, wherein the mixture comprises pentadecane, hexadecane, and heptadecane, wherein heptadecane and pentadecane are predominant in the mixture, and wherein at least a portion of the carbon in the alkanes in the mixture is inorganic carbon.
11 . The fuel composition of claim 10 , wherein the fuel composition further comprises nonadecene.
12 . The fuel composition of claim 10 , wherein the fuel composition further comprises tridecane.
13 . The fuel composition of claim 10 , wherein the fuel composition further comprises tetradecane.
14 . The fuel composition of claim 10 , wherein the fuel composition is a low-sulfur fuel composition.
15 . The fuel composition of claim 10 , wherein the fuel composition is a carbon-neutral fuel composition.
16 . The fuel composition of claim 10 , wherein the fuel composition has a higher δ p than a comparable fuel composition made from fixed atmospheric carbon or plant-derived biomass.
17 . The fuel composition of claim 10 , wherein the fuel composition further comprises diesel.
18 . The fuel composition of claim 10 , wherein the inorganic carbon is derived from carbon dioxide.
19 . A fuel composition comprising a mixture of alkanes, wherein the mixture comprises pentadecane, hexadecane, and heptadecane, wherein heptadecane and pentadecane are predominant in the mixture, and wherein the fuel composition has a higher δ p than a comparable fuel composition made from fixed atmospheric carbon or plant-derived biomass.
20 . The fuel composition of claim 19 , wherein at least a portion of the carbon used as raw material of the alkanes in the mixture is inorganic carbon; or wherein at least a portion of the carbon in the alkanes in the mixture is inorganic carbon.