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Liquid fuel production system having parallel product gas generation

  • US 10,099,200 B1
  • Filed: 10/24/2017
  • Issued: 10/16/2018
  • Est. Priority Date: 10/24/2017
  • Status: Active Grant
First Claim
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1. A liquid fuel production system, comprising:

  • (a) a plurality of feedstock delivery systems (2000, 2000

    ), each comprising a feedstock input (2-IN1, 2-IN1

    ) configured to accept carbonaceous material, a feedstock gas input (2-IN2, 2-IN2

    ) configured to accept carbon dioxide, and a mixture output (2-OUT1, 2-OUT1

    );

    wherein each feedstock delivery system (2000, 2000

    ) is configured to blend the carbonaceous material with carbon dioxide to generate a carbonaceous material and gas mixture which is discharged via the mixture output (2-OUT1, 2-OUT1

    );

    (b) a plurality of first stage product gas generation systems (3A, 3A′

    ), each comprising a first reactor mixture input (3A-IN1, 3A-IN1

    ) configured to accept at least a portion of said carbonaceous material and gas mixture, and a first reactor gas output (3A-OUT1, 3A-OUT1

    ), wherein each first stage product gas generation system is configured to react the carbonaceous material with steam and optionally also with an oxygen-containing gas and/or carbon dioxide to generate first reactor product gas which is discharged via said first reactor gas output (3A-OUT1, 3A-OUT1

    );

    (c) a plurality of second stage product gas generation systems (3B, 3B′

    ), each comprising a second reactor gas input (3B-IN1, 3B-IN1

    ) configured to accept at least a portion of said first reactor product gas, and a second reactor gas output (3B-OUT1, 3B-OUT1

    ), wherein each second stage product gas generation system (3B, 3B′

    ) is configured to react the first reactor product gas with an oxygen-containing gas and optionally also with steam and/or carbon dioxide to generate heat and a second reactor product gas which is discharged via said second reactor gas output (3B-OUT1, 3B-OUT1

    );

    (d) a plurality of third stage product gas generation systems (3C, 3C′

    ), each comprising a third reactor gas input (3C-IN1, 3C-IN1

    ) configured to accept at least a portion of said second reactor product gas, and a third reactor output (3C-OUT1, 3C-OUT1

    ), wherein each third stage product gas generation system (3C, 3C′

    ) is configured to exothermically react a portion of the second reactor product gas with an oxygen-containing gas and optionally also with a hydrocarbon to generate heat and a third reactor product gas which is discharged via the third reactor output (3C-OUT1, 3C-OUT1

    );

    (e) a primary gas clean-up system (4000) comprising a primary gas clean-up input (4-IN1) configured to accept third reactor product gas from the plurality of the third reactor outputs (3C-OUT1, 3C-OUT1

    ), and a primary gas clean-up output (4-OUT1);

    wherein the primary gas clean-up system (4000) is configured to reduce the temperature, and remove solids and water from the third reactor product gas and discharge primary product gas via the primary gas clean-up output (4-OUT1);

    (f) a compression system (5000) comprising a compression system input (5-IN1) configured to accept the primary product gas at a first pressure from the primary gas clean-up output (4-OUT1), and a compression system output (5-OUT1), wherein the compression system (5000) is configured to increase a pressure of the primary product gas and discharge compressed product gas via the compression system output (5-OUT1) at a second pressure greater than the first pressure at which the primary product gas entered via the compression system input (5-IN1), and wherein the compressed product gas comprising carbon dioxide;

    (g) a secondary gas clean-up system (6000) comprising a secondary gas clean-up input (6-IN1) configured to accept the compressed product gas, a secondary gas clean-up system output (6-OUT1), and a carbon dioxide output (6-OUT2), wherein the secondary gas clean-up system (6000) is configured to remove carbon dioxide from the compressed product gas to thereby generate a carbon dioxide depleted secondary product gas that is discharged via the secondary gas clean-up system output (6-OUT1), and discharge carbon dioxide via the carbon dioxide output (6-OUT2); and

    (h) a synthesis system (7000) comprising a synthesis system input (7-IN1) configured to accept the carbon dioxide depleted secondary product gas, and a synthesis system output (7-OUT1), wherein the synthesis system is configured to catalytically synthesize a synthesis product that is discharged via the synthesis system output (7-OUT1), and wherein the synthesis product includes one or more from the group consisting of ethanol, mixed alcohols, methanol, dimethyl ether, and Fischer-Tropsch products.

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