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Expired Canadian patentCanada

Fluid catalytic cracking systems

CA 1233425 A · Owner: Chevron Research And Technology Company · Inventors: Pettersen, Frederick A.; Chessmore, Donald O.

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

An improved liquid hydrocarbon feed method is disclosed wherein substantially all of the liquid is converted to mist sized particles over a wide angled dispersion pattern without a concurrent shroud of steam or water. Such dispersion promotes vapor phase catalytic reaction between hydrocarbon vapors and fluidized catalyst in a reaction time of 1 to 3 seconds. In a preferred form, the liquid feed is introduced into the transition section of a riser reactor. The misting nozzle is characterized by a swirl chamber to which the full hydrocarbon feed is supplied for centrifugal rotation by vane members and the flow is released through a reduced area orifice having a short throat to maintain a low …

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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 March 1, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 1, 2005.
  • 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 14, 1983
GrantedMarch 1, 1988
Term endedMarch 1, 2005
Patent numberCA 1233425 A
Classification (IPC)C10G11/18 +1 more

Timeline

Timeline From CIPO dates

19841987199019931996199920022005Application filedDec 14, 1983Patent grantedMarch 1, 1988Term endedMarch 1, 2005

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