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Expired Canadian patentCanada

Process and apparatus for partial upgrading of a heavy oil feedstock

CA 1313639 C · Owner: Kasten, Eadie Technology Ltd. · Inventors: Macwilliams, William Andrew; Eadie, William

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Abstract From the Canadian patent

A HEAVY OIL FEEDSTOCK", ABSTRACT OF THE DISCLOSURE The invention involves visbreaking heavy oil under mild conditions in a vertical vessel containing a vertical elongate ring spaced inwardly from the vessel wall to form an outer openended annular chamber and an inner open-ended soak chamber. Heavy oil at 220 - 600°F is fed to top of annular chamber. A mixture of visbroken residuum and heavy oil at 730 - 800°F is fed to top of soak chamber. There is heat transfer through the ring from the soak liquid to the annulus liquid to assist in maintaining mild temperature in the soak chamber. The two streams mix in the base of the vessel whereby the visbreaking reaction is quenched. Part of 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 February 16, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 16, 2010.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 9, 1988
GrantedFebruary 16, 1993
Term endedFebruary 16, 2010
Patent numberCA 1313639 C
Classification (IPC)C10G9/00

Timeline

Timeline From CIPO dates

19891992199519982001200420072010Application filedSep 9, 1988Patent grantedFeb 16, 1993Term endedFeb 16, 2010

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