Process for eliminating nox and n2o from the residual gas...

Details Process for eliminating nox and n2o from the residual gas... Process for eliminating nox and n2o from the residual gas...

B - Operations, Transporting

01

D

B01D 53/86 (2006.01) B01D 53/14 (2006.01) B01D 53/56 (2006.01) C01B 21/40 (2006.01) C01B 21/46 (2006.01)

Patent

CA 2397265

A process is described for reducing the NOx concentra-tion and N2O concentration from the residual gas from nitric acid production. The process encompasses the passing of the residual gas leaving the absorption column, prior to entry into the residual gas turbine, through a combination of two stages. The first stage here reduces the NO x content and the second stage the N2O content of the gas, the NO x/N2O ratio prior to entry of the gas into the second stage being in the range from 0.001 to 0.5, and this gas being brought into contact in the second stage with a catalyst which is substantially composed of one or more iron-loaded zeolites.

L'invention concerne un procédé pour réduire la concentration en NOx et en N2O du gaz résiduaire provenant de la production d'acide nitrique. Ce procédé consiste à acheminer le gaz résiduaire, quittant la tour d'absorption, à une combinaison de deux étages avant son entrée dans la turbine à gaz résiduaire. La teneur du gaz en NOx est réduite dans le premier étage, et sa teneur en N2O est réduite dans le deuxième étage. Le rapport NOx/N2O, avant l'entrée du gaz dans le deuxième étage, est compris entre 0,001 et 0,5, et ce gaz est mis en contact dans le deuxième étage avec un catalyseur qui contient essentiellement une ou plusieurs zéolithes chargées de fer.

Affiliated with

Also associated with

Rating

Process for eliminating nox and n2o from the residual gas... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for eliminating nox and n2o from the residual gas..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for eliminating nox and n2o from the residual gas... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1992997