Procedure and also apparatus for the cleaning of flue gases containing sulfur dioxide
CA 2357280 A1 · Owner: Morin, Jean Xavier · Inventors: Seeber, Joachim; Morin, Jean Xavier
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Procedure for the cleaning of flue gases containing sulfur dioxide that come from a, circulating fluidized-bed firing system wherein within the combustion chamber of the, fluidized-bed firing system sulfur-containing coal is burned by the addition of air at a, temperature of 700 to 950 °C in a fluidized bed and therein flue gas , containing sulfur dioxide is formed and a particulate SO2 sorbent is delivered to the combustion chamber, a portion of the ash produced in the combustion and a portion of the reaction product, produced in the reaction of the SO2 sorbent with the sulfur dioxide as well as a portion, of the unreacted SO2 sorbent is carried off from the combustion chamber and is …
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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 September 12, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 12, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 12, 2023.
- 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
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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.