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Expired Canadian patentCanada

Process for the hydrogenation of heavy and residual oils

CA 1302332 C · Owner: Marruffo, Franzo · Inventors: Niemann, Klaus; Krasuk, Julio; Merz, Ludwig

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Abstract From the Canadian patent

A process for the hydrogenation of heavy oils residual oils, waste oils, used oils, shell oils and, tar sand oils by hydrogenating a slurry of the oil at a partial hydrogen pressure of 50-300 bar a temperature, of 250-500°C, a space velocity of 0.1-5 T/m3h and a, gas/liquid ratio of 100-10000 Nm3/T wherein the, additive comprises two different grain size portions a, fine grain portion having a grain size of 90 microns or less and a coarse grain portion having a grain size of 100-1000 microns. 35/maf,mkn

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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 June 2, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 2, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 7, 1987
GrantedJune 2, 1992
Term endedJune 2, 2009
Patent numberCA 1302332 C
Classification (IPC)C10G47/00 +2 more

Timeline

Timeline From CIPO dates

19881991199419972000200320062009Application filedOct 7, 1987Patent grantedJune 2, 1992Term endedJune 2, 2009

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