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Expired Canadian patentCanada

Fluidized catalytic cracking process with improved cycle gas oil stripping

CA 1085332 A · Owner: Texaco Development Corporation · Inventors: Jahnke, Frederick C.; Williams, Dale; Colvert, James H.

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Abstract From the Canadian patent

FLUIDIZED CATALYTIC CRACKING PROCESS WITH IMPROVED CYCLE GAS OIL STRIPPING, (D#74,556 FB) A B S T R A C T, The present application discloses a fluidized catalytic cracking process wherein light cycle gas oil is stripped of heavy naphtha components employing reboiled light cycle gas oil as stripping vapor and wherein, intermediate cycle gas oil is stripped of light cycle gas oil components employing reboiled intermediate cycle gas oil as stripping vapor. Heavy naphtha vapors stripped from the light cycle gas oil are returned to the reaction vessel as primary stripping vapor for increasing naphtha octane value, and for reducing sour water production from the Fluid Catalytic Cracking Unit. …

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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 September 9, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 9, 1997.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 17, 1976
GrantedSeptember 9, 1980
Term endedSeptember 9, 1997
Patent numberCA 1085332 A
Classification (IPC)C10G11/18 +1 more

Timeline

Timeline From CIPO dates

1977198019831986198919921995Application filedDec 17, 1976Patent grantedSep 9, 1980Term endedSep 9, 1997

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