Gradual oxidation with reciprocating engine
First Claim
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1. A method for oxidizing fuel, comprising:
- receiving a gas air-fuel mixture through an intake, the mixture comprising a mixture of air and a gas fuel;
compressing the mixture with a first reciprocating piston chamber, the first reciprocating piston chamber being coupled to a reciprocating engine;
oxidizing the mixture in a reaction chamber that is configured to receive the mixture from the compression chamber via an inlet and to maintain oxidation of the fuel at an internal temperature of the reaction chamber without a catalyst; and
expanding heated product gas from the reaction chamber in a second reciprocating piston chamber coupled to the reciprocating engine, thereby driving the reciprocating engine.
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Abstract
Described herein are embodiments of systems and methods for oxidizing gases. In some embodiments, a reaction chamber is configured to receive a fuel gas and maintain the gas at a temperature within the reaction chamber that is above an autoignition temperature of the gas. The reaction chamber may also be configured to maintain a reaction temperature within the reaction chamber below a flameout temperature. In some embodiments, heat and product gases from the oxidation process can be used, for example, to drive a turbine, reciprocating engine, and injected back into the reaction chamber.
296 Citations
20 Claims
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1. A method for oxidizing fuel, comprising:
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receiving a gas air-fuel mixture through an intake, the mixture comprising a mixture of air and a gas fuel; compressing the mixture with a first reciprocating piston chamber, the first reciprocating piston chamber being coupled to a reciprocating engine; oxidizing the mixture in a reaction chamber that is configured to receive the mixture from the compression chamber via an inlet and to maintain oxidation of the fuel at an internal temperature of the reaction chamber without a catalyst; and expanding heated product gas from the reaction chamber in a second reciprocating piston chamber coupled to the reciprocating engine, thereby driving the reciprocating engine. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for oxidizing fuel, comprising:
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compressing an air-fuel mixture, comprising a mixture of air and a gas fuel, in a reciprocating piston compression chamber coupled to a reciprocating engine; oxidizing the mixture in a reaction chamber, configured to receive the mixture from the compression chamber via an inlet, above an autoignition temperature of the fuel and beneath a flameout temperature of the fuel; and expanding product gas from the reaction chamber in a reciprocating piston expansion chamber coupled to the reciprocating engine, thereby driving the reciprocating engine. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A method for oxidizing fuel, comprising:
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directing an air-fuel mixture, comprising a mixture of air and a gas fuel, to be compressed in a reciprocating compression piston chamber coupled to a reciprocating engine; directing the mixture from the compression piston to a reaction chamber, configured to gradually oxidize the mixture within the reaction chamber above an autoignition temperature of the mixture and beneath a flameout temperature of the mixture; and directing product gas from the reaction chamber to be expanded in a reciprocating expansion piston chamber coupled to the reciprocating engine, thereby driving the reciprocating engine. - View Dependent Claims (18, 19, 20)
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Specification