Method for producing a product gas having component gas ratio relationships
First Claim
Patent Images
1. A method of producing a third reactor product gas, the method comprising:
- (a) providing a source of carbonaceous material including one or more materials selected from the group consisting of agricultural residues, agro-industrial residues, animal waste, biomass, cardboard, coal, coke, energy crops, farm slurries, fishery waste, food waste, fruit processing waste, lignite, municipal solid waste, paper, paper mill residues, paper mill sludge, paper mill spent liquors, plastic, refuse derived fuel, sewage sludge, tires, urban waste, wood products, wood wastes, and combinations thereof;
(b) after step (a), reacting the carbonaceous material with steam to produce a first reactor product gas having a first H2 to CO ratio and a first CO to CO2 ratio;
(c) after step (b), substoichiometrically oxidizing at least a portion of the first reactor product gas to form a second reactor product gas having a second H2 to CO ratio and a second CO to CO2 ratio;
(d) after step (c), mixing the first reactor product gas and second reactor product gas to form a combined product gas; and
(e) after step (d), reacting the combined product gas with an oxygen-containing gas to produce a third reactor product gas having a third H2 to CO ratio and a third CO to CO2 ratio;
wherein;
(I) the first H2 to CO ratio is greater than the second H2 to CO ratio;
(II) the second CO to CO2 ratio is greater than the first CO to CO2 ratio;
(III) the third H2 to CO ratio is lower than both the first H2 to CO ratio and the second H2 to CO ratio; and
(IV) the third CO to CO2 ratio is greater than both the first CO to CO2 ratio and the second CO to CO2 ratio.
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Abstract
A liquid fuel product system is configured to produce liquid fuels from carbonaceous materials. The liquid fuel product system includes a plurality of feedstock delivery systems, a plurality of first stage product gas generation systems, a plurality of second stage product gas generation systems, a plurality of third stage product gas generation systems, a primary gas clean-up system, a compression system, a secondary gas clean-up system, and a synthesis system that includes one or more from the group consisting of ethanol, mixed alcohols, methanol, dimethyl ether, and Fischer-Tropsch products.
241 Citations
28 Claims
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1. A method of producing a third reactor product gas, the method comprising:
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(a) providing a source of carbonaceous material including one or more materials selected from the group consisting of agricultural residues, agro-industrial residues, animal waste, biomass, cardboard, coal, coke, energy crops, farm slurries, fishery waste, food waste, fruit processing waste, lignite, municipal solid waste, paper, paper mill residues, paper mill sludge, paper mill spent liquors, plastic, refuse derived fuel, sewage sludge, tires, urban waste, wood products, wood wastes, and combinations thereof; (b) after step (a), reacting the carbonaceous material with steam to produce a first reactor product gas having a first H2 to CO ratio and a first CO to CO2 ratio; (c) after step (b), substoichiometrically oxidizing at least a portion of the first reactor product gas to form a second reactor product gas having a second H2 to CO ratio and a second CO to CO2 ratio; (d) after step (c), mixing the first reactor product gas and second reactor product gas to form a combined product gas; and (e) after step (d), reacting the combined product gas with an oxygen-containing gas to produce a third reactor product gas having a third H2 to CO ratio and a third CO to CO2 ratio; wherein; (I) the first H2 to CO ratio is greater than the second H2 to CO ratio; (II) the second CO to CO2 ratio is greater than the first CO to CO2 ratio; (III) the third H2 to CO ratio is lower than both the first H2 to CO ratio and the second H2 to CO ratio; and (IV) the third CO to CO2 ratio is greater than both the first CO to CO2 ratio and the second CO to CO2 ratio. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method of making a synthesis product selected from the group consisting of ethanol, mixed alcohols, methanol, dimethyl ether, and Fischer-Tropsch products, and mixtures thereof, the method comprising:
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(a) providing a source of carbonaceous material including one or more materials selected from the group consisting of agricultural residues, agro-industrial residues, animal waste, biomass, cardboard, coal, coke, energy crops, farm slurries, fishery waste, food waste, fruit processing waste, lignite, municipal solid waste, paper, paper mill residues, paper mill sludge, paper mill spent liquors, plastic, refuse derived fuel, sewage sludge, tires, urban waste, wood products, wood wastes, and combinations thereof; (b) after step (a), reacting the carbonaceous material with both steam and carbon dioxide to produce a first reactor product gas having a first H2 to CO ratio and a first CO to CO2 ratio; (c) after step (b), substoichiometrically oxidizing at least a portion of the first reactor product gas to form a second reactor product gas having a second H2 to CO ratio and a second CO to CO2 ratio; (d) after step (c), mixing the first reactor product gas and second reactor product gas to form a combined product gas; (e) after step (d), reacting the combined product gas with an oxygen-containing gas to produce a third reactor product gas having a third H2 to CO ratio and a third CO to CO2 ratio; (f) after step (e), reducing the temperature of the third reactor product gas to form a reduced-temperature product gas; (g) after step (f), removing water from the reduced-temperature product gas to form a water-depleted product gas which has a reduced amount of water relative to the reduced-temperature product gas; (h) after step (g), increasing the pressure of the water-depleted product gas to form a compressed product gas which has a pressure greater than the water-depleted product gas; (i) after step (h), removing carbon dioxide from the compressed product gas to form a carbon-dioxide-depleted-product-gas which has a reduced amount of carbon dioxide relative to the compressed product gas; and (j) after step (i), catalytically synthesizing the synthesis product from the carbon-dioxide-depleted-product-gas; wherein; (I) the first H2 to CO ratio is greater than the second H2 to CO ratio; (II) the second CO to CO2 ratio is greater than the first CO to CO2 ratio; (III) the third H2 to CO ratio is lower than both the first H2 to CO ratio and the second H2 to CO ratio; and (IV) the third CO to CO2 ratio is greater than both the first CO to CO2 ratio and the second CO to CO2 ratio. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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Specification