A method of selectively catalytically oxidizing dinitrogen oxide, a method of detecting radiocarbon, an apparatus, and use of a NiO catalyst
AssigneeTeknologian tutkimuskeskus VTT Oy
InventorsGuillaume Genoud, Matti Reinikainen, Mari-Leena Koskinen-Soivi, Johannes Lehmuskoski
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Abstract
A method of selectively catalytically oxidizing dinitrogen oxide present in a gaseous sample, comprising: heating a NiO catalyst to a temperature of at least 250° C.; and bringing the gaseous sample into contact with the heated NiO catalyst to oxidize dinitrogen oxide of the gaseous sample in the presence of the heated NiO catalyst.
Claims21
A method of selectively catalytically oxidizing dinitrogen oxide present in a gaseous sample, comprising:
- heating a NiO catalyst to a temperature of at least 250° C.;
- and
- bringing the gaseous sample into contact with the heated NiO catalyst to oxidize the dinitrogen oxide of the gaseous sample in the presence of the heated NiO catalyst.
A method of detecting radiocarbon in the form of 14CO2 in a gaseous sample comprising at least 14CO2 and dinitrogen oxide, the method comprising:
- selectively catalytically oxidizing the dinitrogen oxide present in the gaseous sample;
- and subsequently
- determining the amount of 14CO2 in the gaseous sample by infrared absorption spectroscopy.
An apparatus comprising:
- first means for selectively catalytically oxidizing dinitrogen oxide present in a gaseous sample with a NiO catalyst;
- and
- second means for determining the amount of 14CO2 present in the gaseous sample by infrared absorption spectroscopy.
19-22. (canceled)
Dependencies are inferred from the claim text.