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Canadian application, no grantCanada

Circulating fluid bed combustion with co combustion promotor and reduced combustion air

CA 2075203 A1 · Owner: Mobil Oil Corporation · Inventors: Avidan, Amos A.

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

Addition of a CO combustion promoter to a circulating fluid bed (CFB) combustion unit and reduction of the air addition rate to 100-110 % of stoichiometric improves the efficiency of CO burning reduces emissions of CO and improves the efficiency of the unit. Stable, reduced temperature operation with air rates close to stoichiometric, reduces NOx emissions. A circulating (100-400 µm particles) or fast settling (400-1200 µm particle) CO combustion promoter may be used.

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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 14, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 14, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 14, 2012.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 14, 1990
GrantedNo grant recorded
Term endedFebruary 14, 2010
Patent numberCA 2075203 A1
Classification (IPC)F23C10/10 +2 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedFeb 14, 1990Term endedFeb 14, 2010

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.