C - Chemistry – Metallurgy – 01 – B
Patent
C - Chemistry, Metallurgy
01
B
C01B 21/24 (2006.01) G01N 1/44 (2006.01) G01N 31/10 (2006.01) G01N 21/25 (2006.01) G01N 27/407 (2006.01)
Patent
CA 2539102
A method of converting nitrogen dioxide to nitric oxide that includes passing a stream of gas containing nitrogen dioxide over a material that includes yttrium-stabilized zirconia. The method may be performed in a device for measuring NOx, that includes a housing having a gas inlet and a gas outlet; a material that includes yttrium-stabilized zirconia positioned inside of the housing; a means for heating the surface of the material that includes yttrium- stabilized zirconia; and a means for measuring the amount of nitric oxide in a stream of gas that has passed over the material comprising yttrium-stabilized zirconia. The device may be used to measure the amount of NOx in a stream of gas by passing a stream of gas containing nitric oxide through the above- described inventive device.
L'invention porte sur un procédé de conversion de bioxyde d'azote en monoxyde d'azote à l'aide d'un de mesure du NO¿x?, comportant un logement présentant une entrée et une sortie de gaz et à l'intérieur duquel se trouvent: un matériau comportant de la zirconia stabilisée à l'yttrium; un moyen de chauffage la surface dudit matériau; et un moyen de mesure de la quantité d'oxyde nitrique dans un courant gazeux ayant passé sur ledit matériau. Ce dispositif peut donc servir à mesurer la quantité de NO¿x? dans un courant gazeux qui le traverse.
Ametek Inc.
Harris Philip C.
Piasetzki & Nenniger Llp
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