Scrubbing a gas containing nitrogen oxides
AssigneeL'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
InventorsAlain Briglia, Ludovic Granados, Christian Monereau, Elise Renou
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Abstract
The invention relates to a method for removing nitrogen monoxide (NO) and nitrogen oxides (NOx with x>1) from a gas stream, implementing a device including a catalytic bed for converting a portion at least a part of the NO into NOx with x>1, and a unit for reducing the NOx with x>1, and in which the gas stream is placed into contact with the catalytic bed before entering the unit for reducing the NOx with x>1.
Claims13
1-9. (canceled)
A device for removing nitrogen monoxide NO and nitrogen oxides NOx with x>1 from a gas stream comprising:
- a catalytic bed which makes possible the conversion of at least a portion of the NO to NOx with x>1, and
- a unit for abatement of the NOx with x>1,
- the catalytic bed being situated upstream of the abatement unit and the abatement unit being a cryogenic separation unit.
A process for removing nitrogen monoxide NO and nitrogen oxides NOx with x>1 from a gas stream comprising;
- bringing the gas stream into contact with a catalytic bed so as to convert at least a portion of the NO to NOx with x>1, then
- entering an abatement unit for abatement of the NOx with x>1.
Dependencies are inferred from the claim text.