Conversion of nitrogen oxides in the presence of a catalyst...

B - Operations – Transporting – 01 – D

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

B01D 53/86 (2006.01) B01D 53/88 (2006.01) B01D 53/94 (2006.01) B01J 23/30 (2006.01) B01J 23/42 (2006.01) B01J 35/04 (2006.01) B01J 35/06 (2006.01) F01N 3/28 (2006.01) F01N 13/02 (2010.01)

Patent

CA 2387561

A process and apparatus for converting at least one nitrogen oxide, such as NO, NO2, or N2O which converts oxide in the presence of a catalyst supported on a metal. mesh-like structure. The mesh-like structure is preferably fibrous, formed of metal or ceramic fibers which may include knitted wire, sintered metal fibers and so on and has a porosity greater than about 85%. The mesh is formed into channels, preferably corrugations, and includes vortex generators, which generate turbulence to create a pressure differential across the mesh, to promote flow of fluids through the mesh pores which normally do not exhibit flow therethrough :in the absence of such pressure differential. Preferred embodiments of structured packing and monoliths are disclosed each having a catalyst, preferably in the mesh pores and/or coated on the fibers, for converting the nitrogen oxide. In one embodiment, corrugated mesh-like sheets are arranged in series with a ceramic solid monolith structure with the corrugated sheets initially receiving the fluid with the at least one nitrogen oxide to be converted and which fluid then flows into the monolith structure to complete the conversion. In other embodiments, the mesh-like structure may have different configurations including a honeycomb arrangement and may include metal, metal and ceramic or ceramic and may be fibrous.

Cette invention a trait à un procédé de conversion d'au moins un oxyde d'azote, tel que NO, NO2, ou N2O, lequel procédé consiste à convertir cet oxyde d'azote, celui-ci à tout le moins, en présence d'un catalyseur sur support à structure du type à mailles métalliques. Cette structure du type à mailles est, de préférence, fibreuse, et sa porosité est supérieure à 85 %. Des modes de réalisation préférés portent sur des empilements structurés et des monolithes, possédant, chacun, un catalyseur pour la conversion de l'oxyde d'azote. Dans une réalisation, des feuilles ondulées du type à mailles sont disposées en série avec une structure monolithe solide céramique, les feuilles ondulées recevant au départ le fluide ainsi que l'oxyde d'azote, un au moins, à convertir. Le fluide s'écoule alors dans la structure monolithe afin d'achever la conversion. Dans d'autres réalisations, la structure du type à mailles peut se présenter selon différentes configurations, notamment sous forme de nid d'abeille, peut comprendre du métal, un métal et une céramique ou une céramique et peut également être de nature fibreuse.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Conversion of nitrogen oxides in the presence of a catalyst... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Conversion of nitrogen oxides in the presence of a catalyst..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Conversion of nitrogen oxides in the presence of a catalyst... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-2081020

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.