Multi-stage process for demetalation and desulfurization of petroleum oils
CA 1163946 A · Owner: Mobil Oil Corporation · Inventors: Angevine, Philip J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Hydrocarbon oils, preferably residual fractions are, catalytically hydroprocessed to remove metals sulfur, and Conradson, Carbon Residue by contacting the oil sequentially with three or more catalysts having sequentially decreasing average pore diameters and sequentially increasing surface areas.
Read the whole patent
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 20, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 20, 2001.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.