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Expired Canadian patentCanada

Gasification method and device for producing synthesis gases by partial oxidation of fuels containing ash at elevated pressure with partial quenching of the crude gas and waste heat recovery

CA 2537784 C · Owner: Holle, Bernd · Inventors: Fischer, Norbert; Holle, Bernd; Schingnitz, Manfred

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Abstract From the Canadian patent

A method and device for the gasification of solid fuels such as bituminous coal lignite coal, and petroleum coke in the flue stream with an oxidizing medium containing free oxygen by partial oxidation at pressures between atmospheric pressure and 80 bar and at temperatures between 1200 and 1900~C consisting of the process steps of pneumatic metering for pulverized fuel gasification in a flue stream reactor with cooled reaction chamber contour partial quenching, cooling, crude gas scrubbing and partial condensation.

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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 27, 2006 and granted August 20, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 27, 2026.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • 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 27, 2006
GrantedAugust 20, 2013
Term endedFebruary 27, 2026
Patent numberCA 2537784 C
Classification (IPC)C10J3/46 +2 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedFeb 27, 2006Patent grantedAug 20, 2013Term endedFeb 27, 2026

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