A method comprises a providing a carbohydrate; reacting the carbohydrate directly with hydrogen in the presence of a hydrogenolysis catalyst to produce a reaction product comprising a polyol; and then processing at least a portion of the reaction product to form a fuel blend.
대표청구항▼
1. A method comprising: contacting a solid biomass feedstock comprising lignin with hydrogen and a hydrogenolysis catalyst in a reactor vessel to produce a reaction product comprising one or more polyols in an amount of greater than 25% by mole; wherein at least a portion of the solid biomass feedst
1. A method comprising: contacting a solid biomass feedstock comprising lignin with hydrogen and a hydrogenolysis catalyst in a reactor vessel to produce a reaction product comprising one or more polyols in an amount of greater than 25% by mole; wherein at least a portion of the solid biomass feedstock is converted to a carbohydrate in a hydrolysis reaction and the carbohydrate is converted to the reaction product in a hydrogenolysis reaction;wherein the hydrolysis reaction and the hydrogenolysis reaction are conducted in a single step; andcontacting at least a portion of the reaction product comprising one or more polyols in an amount of greater than 25% by mole with a condensation catalyst to form one or more higher hydrocarbons comprising at least one of the following: an alkane with 4 to 30 carbon atoms, an alkene with 4 to 30 carbon atoms, a cycloalkane with 5 to 30 carbon atoms, a cycloalkene with 5 to 30 carbon atoms, an aryl, an alcohol with at least 4 carbon atoms, and a ketone with at least 4 carbon atoms. 2. The method of claim 1 wherein the biomass feedstock comprising lignin is reacted directly with a hydrogen in the presence of a hydrogenation catalyst prior to hydrogenolysis. 3. The method of claim 2 wherein the hydrogenolysis catalyst and hydrogenation catalyst are the same catalyst. 4. The method of claim 2 wherein the hydrogenolysis catalyst and the hydrogenation catalyst are present in the same reactor vessel. 5. The method of claim 1 further comprising forming a fuel blend using at least a portion of the one or more higher hydrocarbons wherein the fuel blend comprises at least one composition selected from the group consisting of: a fuel additive, a gasoline fuel, a diesel fuel, and a jet fuel. 6. The method of claim 5 wherein the fuel blend comprises at least one additive selected from the group consisting of: a saturated alcohol, a saturated polyol, and a saturated hydrocarbon. 7. The method of claim 5 wherein the fuel blend comprises a diesel fuel. 8. The method of claim 5 wherein the fuel blend comprises a jet fuel. 9. The method of claim 5 wherein the fuel blend comprises a gasoline fuel. 10. The method of claim 1 further comprising processing of at least a portion of the reaction product, wherein said processing comprises contacting at least a portion of the reaction product with a hydrogenation catalyst. 11. The method of claim 1 further comprising processing of at least a portion of the reaction product, wherein said processing comprises contacting at least a portion of the reaction product with an acid catalyst to form at least some olefins; and contacting the olefins with an oligomerization catalyst. 12. The method of claim 1 wherein the hydrogenolysis catalyst comprises at least one metal selected from the group consisting of: Cr, Mo, W, Re, Mn, Cu, Cd, Fe, Co, Ni, Pt, Pd, Rh, Ru, Ir, Os, an alloy thereof, and any combination thereof. 13. The method of claim 1 further comprising recycling the one or more polyols through the hydrogenolysis reaction. 14. A method comprising: contacting a bio-based feedstock comprising lignin with hydrogen and a hydrogenolysis catalyst in a reactor vessel;hydrolyzing at least a portion of the bio-based feedstock comprising lignin in a hydrolysis reaction to form a carbohydrate in said reactor vessel;reacting the carbohydrate with the hydrogen and the hydrogenolysis catalyst in a hydrogenolysis reaction in said reactor vessel to produce a reaction product comprising one or more polyols in an amount of greater than 25% by mole, wherein the one or more polyols comprise a higher polyol, andwherein the hydrolysis reaction and the hydrogenolysis reaction are conducted in a single step;providing at least some of the reaction product as a product stream, wherein the product stream comprises a first portion and a second portion;recycling at least some of the higher polyol in the first portion of the product stream to the reactor vessel; andcontacting at least some of the second portion of the product stream with a condensation catalyst to form one or more higher hydrocarbons comprising at least one of the following: an alkane with 4 to 30 carbon atoms, an alkene with 4 to 30 carbon atoms, a cycloalkane with 5 to 30 carbon atoms, a cycloalkene with 5 to 30 carbon atoms, an aryl, an alcohol with at least 4 carbon atoms, and a ketone with at least 4 carbon atoms. 15. The method of claim 14 wherein the hydrolyzing at least a portion of the bio-based feedstock comprises contacting at least a portion of the bio-based feedstock with a hydrolysis catalyst. 16. The method of claim 15 wherein the hydrolysis catalyst comprises at least one of: an acid catalyst, a base catalyst, a metal catalyst, and any combination thereof. 17. The method of claim 16 wherein the acid catalyst comprises an organic acid. 18. The method of claim 17 wherein the organic acid comprises at least one of an acetic acid, a formic acid, and a levulinic acid. 19. The method of claim 14 wherein the carbohydrate is reacted directly with a hydrogen in the presence of a hydrogenation catalyst prior to hydrogenolysis. 20. The method of claim 19 wherein the hydrogenation and hydrogenolysis catalysts are the same catalyst. 21. The method of claim 19 wherein the hydrogenolysis catalyst and the hydrogenation catalyst are present in the same reactor vessel. 22. The method of claim 14 further comprising forming a fuel blend using at least a portion of the one or more higher hydrocarbons wherein the fuel blend comprises at least one composition selected from the group consisting of: a fuel additive, a gasoline fuel, a diesel fuel, and a jet fuel. 23. The method of claim 22 wherein the fuel blend comprises at least one additive selected from the group consisting of: a saturated alcohol, a saturated polyol, and a saturated hydrocarbon. 24. The method of claim 14, further comprising processing of at least a portion of the reaction products, said processing comprises contacting at least a portion of the reaction products with a hydrogenation catalyst. 25. The method of claim 14 further comprising processing of at least a portion of the reaction products, said processing comprises contacting at least a portion of the reaction product with an acid catalyst to form at least some olefins; and contacting the olefins with an oligomerization catalyst. 26. The method of claim 14 wherein the bio-based feedstock comprising lignin further comprises a solid feedstock. 27. A method comprising: converting a solid biomass feedstock comprising lignin to a carbohydrate in a hydrolysis reaction, said hydrolysis reaction taking place in a reaction vessel;converting the carbohydrate to a polyol in a hydrogenolysis reaction with hydrogen and in the presence of a hydrogenolysis catalyst in said reaction vessel to produce a reaction product comprising one or more polyols; wherein the hydrolysis reaction and the hydrogenolysis reaction are conducted in a single step; andcontacting at least a portion of the reaction product with a condensation catalyst to form one or more higher hydrocarbons comprising at least one of the following: an alkane with 4 to 30 carbon atoms, an alkene with 4 to 30 carbon atoms, a cycloalkane with 5 to 30 carbon atoms, a cycloalkene with 5 to 30 carbon atoms, an aryl, an alcohol with at least 4 carbon atoms, and a ketone with at least 4 carbon atoms. 28. The method of claim 27 wherein the hydrogenolysis catalyst comprises at least one metal selected from the group consisting of: Cr, Mo, W, Re, Mn, Cu, Cd, Fe, Co, Ni, Pt, Pd, Rh, Ru, Ir, Os, an alloy thereof, and any combination thereof. 29. The method of claim 27 wherein said contact with a condensation catalyst comprises contacting at least a portion of the reaction product with an acid catalyst to form at least some olefins; and contacting the olefins with an oligomerization catalyst. 30. The method of claim 27 further comprising removing at least a portion of the reaction product from said reaction vessel and providing one or more polyols back to said reaction vessel. 31. The method of claim 27 wherein said hydrolysis reaction comprises contacting at least a portion of the solid biomass feedstock with a hydrolysis catalyst. 32. The method of claim 31 wherein the hydrolysis catalyst comprises at least one of: an acid catalyst, a base catalyst, a metal catalyst, and any combination thereof. 33. The method of claim 27, wherein said contact with a condensation catalyst comprises contacting at least a portion of the reaction products with a hydrogenation catalyst to form the fuel blend, wherein the hydrogenation catalyst includes optionally supported Group VIII metals and Group VI metals.
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