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Expired Canadian patentCanada

Catalytic cracking of hydrocarbons

CA 1094487 A · Owner: Mobil Oil Corporation · Inventors: Demmel, Edward J.

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

The combustion of carbon monoxide in the regenerator or a fluid catalytic cracking plant is controlled by adding a minute amount of a platinum metal compound or a rhenium compound to the circulating inventory of cracking catalyst during operation of the plant. The addition is accomplished by introducing a solution of the compound into a side-stream of the circulating inventory cooled preferably to about the boiling point of the solvent. Excess solvent may be used as coolant. The addition may be made to coked or to regenerated catalyst. Suitable solvents include water and organic fluids boiling above about 140°F to about 600°F. A particularly suitable side-stream apparatus is disclosed. -1-

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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 27, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 27, 1998.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 24, 1977
GrantedJanuary 27, 1981
Term endedJanuary 27, 1998
Patent numberCA 1094487 A
Classification (IPC)C10G11/18

Timeline

Timeline From CIPO dates

1978198119841987199019931996Application filedJan 24, 1977Patent grantedJan 27, 1981Term endedJan 27, 1998

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