Conversion of biomass feedstocks into hydrocarbon liquid transportation fuels
First Claim
1. A method for converting a carbon-containing feedstock into a fluid transportation fuel, the method comprising:
- converting the carbon-containing feedstock in the presence of air into a producer gas comprising H2, CO, CO2, and N2;
delivering the producer gas to a Fischer-Tropsch (F-T) reactor without separating the N2 from the producer gas;
reacting the producer gas with a substrate catalyst to produce a combination of F-T products, the F-T products including the fluid transportation fuel;
catalytically cracking a portion of the F-T products to produce additional amounts of the fluid transportation fuel wherein a temperature for reacting the producer gas with the substrate catalyst is about 250°
C. to about 300°
C.; and
hydrogenating a portion of the F-T products to produce additional amounts of the fluid transportation fuel.
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Abstract
Methods for converting a carbon-containing feedstock into a fluid transportation fuel are described. The methods may include converting the carbon-containing feedstock into a producer gas comprising H2, CO, CO2, and N2, and reacting the producer gas with a substrate catalyst to produce a combination of Fischer-Tropsch (F-T) products, the F-T products including the fluid transportation fuel. A portion of the F-T products may be catalytically cracked to produce additional amounts of the fluid transportation fuel. A portion of the F-T products may also be hydrogenated to produce additional amounts of the fluid transportation fuel. Apparatuses are also described or converting a carbon-containing feedstock into a fluid transportation fuel. The apparatuses may include a producer gas reactor, a Fischer-Tropsch reactor, a cracking reactor, and a hydrogenation reactor.
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Citations
19 Claims
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1. A method for converting a carbon-containing feedstock into a fluid transportation fuel, the method comprising:
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converting the carbon-containing feedstock in the presence of air into a producer gas comprising H2, CO, CO2, and N2; delivering the producer gas to a Fischer-Tropsch (F-T) reactor without separating the N2 from the producer gas; reacting the producer gas with a substrate catalyst to produce a combination of F-T products, the F-T products including the fluid transportation fuel; catalytically cracking a portion of the F-T products to produce additional amounts of the fluid transportation fuel wherein a temperature for reacting the producer gas with the substrate catalyst is about 250°
C. to about 300°
C.; andhydrogenating a portion of the F-T products to produce additional amounts of the fluid transportation fuel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A method for converting a carbon-containing feedstock into hydrocarbon waxes, the method comprising:
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converting the carbon-containing feedstock in the presence of air into a producer gas comprising H2, CO, CO2, and N2; delivering the producer gas to a Fischer-Tropsch (F-T) reactor without separating the N2 from the producer gas; reacting the producer gas with a substrate catalyst to produce a combination of Fischer-Tropsch (F-T) products, the F-T products including hydrocarbon gases and liquids, and a first portion of the hydrocarbon waxes; and reacting at least a portion of the hydrocarbon gases and liquids with the substrate catalyst to produce a second portion of the hydrocarbon waxes.
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Specification