Method and apparatus for determining the activity and aging...

Details Method and apparatus for determining the activity and aging... Method and apparatus for determining the activity and aging...

F - Mech Eng,Light,Heat,Weapons

01

D

F01D 11/00 (2006.01)

Patent

CA 2527593

The invention relates to a method of determining activity and aging behavior of a catalyst. For this purpose, two independent substreams of combustion offgases are produced and mixed before coming into contact with the catalyst. The first substream of combustion offgases is preferably produced by burning a motor fuel and forms the major part of the combustion offgases. The second substream of combustion offgases is produced by means of a gas burner whose air ratio can be adjusted within a wide range. Mixing of this second substream of combustion offgases into the first substream enables the composition of the total stream to be set in a defined manner.

L'invention concerne un procédé de détermination de l'activité et du comportement de vieillissement d'un catalyseur. A cet effet, deux sous-flux de dégagements gazeux de combustion sont produits et mélangés avant d'entrer en contact avec le catalyseur. Le premier sous-flux de dégagements gazeux de combustion est produit de préférence par combustion d'un carburant et forme la plus grande partie des dégagements gazeux de combustion. Le second sous-flux de dégagements gazeux de combustion est produit au moyen d'un brûleur à gaz dont le rapport d'air peut être ajusté dans une large gamme. Le mélange du second sous-flux de dégagements gazeux de combustion au premier sous-flux permet de composer le flux total à établir de manière précise.

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