Method for regenerating nox removal catalyst

Details Method for regenerating nox removal catalyst Method for regenerating nox removal catalyst

B - Operations, Transporting

01

J

B01J 38/48 (2006.01) B01D 53/86 (2006.01) F01N 3/08 (2006.01) F01N 3/20 (2006.01)

Patent

CA 2497604

A method of regenerating a NOx removal catalyst, which enables easily restoring the catalytic activity of deteriorated NOx removal catalyst, and which can be performed easily and ensures a high operating efficiency. In particular, a method of regenerating NOx removal catalyst (14) of an exhaust gas denitrizer, comprising immersing the catalyst in ordinary-temperature regeneration water (31) substantially not containing chlorine and cleaning components, taking out the same and effecting dewatering thereof.

La présente invention concerne un procédé pour régénérer un catalyseur d'élimination de NO¿x?. Ce procédé permet de rétablir facilement l'activité catalytique d'un catalyseur d'élimination de NO¿x? usé et assure une grande efficacité de fonctionnement. Cette invention concerne particulièrement un procédé pour régénérer un catalyseur d'élimination de NO¿x? (14) d'un agent dénitrifiant de gaz d'échappement. Ce procédé consiste à immerger le catalyseur dans une eau de régénération à température ordinaire (31) qui ne contient sensiblement pas de chlore ni de composants nettoyants, puis à le retirer et à le déshydrater.

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