Heavy feed upgrading based on solvent deasphalting followed by slurry hydroprocessing of asphalt from solvent deasphalting
CA 2398252 A1 · Owner: Bearden, Roby Jr. · Inventors: Bearden, Roby Jr.; Hou, Zhiguo; Meyers, Ronald Damian
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for upgrading a feedstream, said process comprising: (a) solvent deasphalting, under solvent deasphalting conditions said feedstream to obtain , a first product stream comprising deasphalted oil and a second product stream comprising asphalt product; (b) slurry hydroprocessing said asphalt product in a slurry hydroprocessing unit under slurry hydroprocessing conditions to obtain a hydroprocessed product; and (c) separating an upgraded oil from the hydroprocessed product and unconverted asphaltene bottoms.
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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
- Filed February 13, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 13, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 13, 2023.
- 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.