METHOD AND SYSTEM FOR NOx REMOVAL FROM A FLUE GAS
AssigneeALSTOM Technology Ltd
InventorsErik W. Boos, Lars Nilsson
Life of this patent
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Abstract
A system for reducing NOx in a flue gas stream, including an absorption element, a first inlet in fluid communication with the chamber configured to deliver a pressurized flue gas to the chamber, and a second inlet in fluid communication with the chamber configured to deliver an absorbing additive to the chamber. An outlet is in fluid communication with the chamber to exhaust from the chamber flue gas that has contacted the absorbing additive. A method for reducing NOx in a flue gas including the steps of: providing a flue gas in a chamber of an absorption element, providing an absorbing additive so that it contacts at least a portion of the flue gas, and exhausting at least a portion of the flue gas from the chamber.
Claims20
A system for reducing NOx in a flue gas, comprising:
- an absorption element defining a chamber;
- a first inlet in fluid communication with the chamber, the first inlet configured to deliver a pressurized flue gas to the chamber;
- an absorbing additive disposed in the chamber;
- a second inlet in fluid communication with the chamber, the second inlet configured to deliver the absorbing additive to the chamber;
- and
- an outlet in fluid communication with the chamber, the outlet configured to exhaust from the chamber flue gas that has contacted the absorbing additive.
A method for reducing NOx in a flue gas stream, comprising:
- providing a flue gas in a chamber of an absorption element;
- providing an absorbing additive in the chamber so that the absorbing additive contacts at least a portion of the flue gas;
- and
- exhausting at least a portion of the CO2 flue gas from the chamber.
A system for reducing NOx in a flue gas, comprising:
- a compressor configured to receive and pressurize a CO2 gas;
- an absorption element comprising an absorbing additive, the absorption element fluidly coupled to the compressor, wherein the absorption element is configured to receive pressurized CO2 gas which exits the compressor and absorb NO2 from the pressurized CO2 gas to produce a NO2 reduced gas;
- and
- a gas purification unit in fluid communication with the absorption element and configured to receive the NO2 reduced gas.
Dependencies are inferred from the claim text.