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Expired Canadian patentCanada

Regeneration of cracking catalyst

CA 1046483 A · Owner: Texaco Development Corporation · Inventors: Castagnos, Leonce F. (Jr.); Pratt, Roy E.; Menzies, William R. (Iii)

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Abstract From the Canadian patent

REGENERATION OF CRACKING CATALYST, (D#73,215-C2-F) ABSTRACT, A process for the regeneration of cokecontaminated fluidizable catalytic cracking catalyst wherein the regeneration flue gas having a reduced concentration of carbon monoxide and regenerated catalyst having a reduced residual carbon content are obtained. By this method a fluidized dense catalyst phase of cokecontaminated catalyst is regenerated with an excess amount of oxygen-containing regeneration gas at an elevated temperature such that there is a controlled afterburn of carbon monoxide to carbon dioxide in the dilute catalyst phase whereby a flue gas having a carbon monoxide content of from 0 to 500 ppm is obtained. The …

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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

  • Granted January 16, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 16, 1996.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedJanuary 16, 1979
Term endedJanuary 16, 1996
Patent numberCA 1046483 A
Classification (IPC)B01J37/14 +2 more

Timeline

Timeline From CIPO dates

198019821984198619881990199219941996Patent grantedJan 16, 1979Term endedJan 16, 1996

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