Reactor and method for reducing the nitrogen oxide content of a gas
CA 2438706 A1 · Owner: Abb Lummus Global Inc. · Inventors: Platvoet, Erwin M. J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A parallel flow reactor (20) for the selective catalytic reduction of nitrogen oxide in a gas stream includes a shell (21) enclosing an interior space in which is located a plurality of substantially parallel planar catalyst beds (23a-f), each containing a catalyst for the selective conversion of NOx. Deflectors (24a-e) in the spaces between the catalyst beds direct the flow of gas through the beds. An injector (22) upstream of the catalyst beds introduces a reducing agent such as ammonia into the inlet gas stream. The catalyst bed can include monolith or microengineered catalyst.
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed February 25, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 25, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 25, 2024.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.