Combination air separation and steam-generation process and plants therefor
CA 2413323 A1 · Owner: L'Air Liquide Societe Anonyme A Directoire Et Conseil De Surveillance Po Pour L'Etude Et L'Exploitation Des Procedes Georges Claude · Inventors: Marin, Ovidiu; Penfornis, Erwin
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention proposes innovative techniques of NOx reduction in bailer operation through an adaptation of staged combustion in combustion boilers. In preferred processes, air is fed into an air separation unit and a nitrogen-, enriched, stream is combined with air to produce a nitrogen-enriched first stage air stream, and, at least a portion of an oxygen-enriched stream is mixed with air to produce an, oxygen-enriched second stags air stream. A reduction in NOx and increase in efficiency is promoted by the inventive processes and systems.
Read the whole patent
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 December 2, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 2, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 2, 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.