Process for hydrogenating treatment of heavy hydrocarbon oil
CA 2107090 A1 · Owner: Sakoda, Yukihiro · Inventors: Sakoda, Yukihiro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There is disclosed a process for hydrogenating treatment of a heavy hydrocarbon oil comprising the successive steps of (1) hydrogenating-demetalizing treatment, (2) hydrocracking treatment and (3) hydrodesufurizing-hydrodenitrifying treatment in the presence of respective catalysts which process comprises employing in the hydrodesulfurizing-hydrodenitrifying treatment a catalyst, having a pore size distribution restricted to a specific range as measured by nitrogen release method. According to the abovementioned process, a product oil with a low sulfur content can be obtained in high cracking efficiency from a heavy hydrocarbon oil without equipment trouble due to sludge formation.
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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 19, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 19, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 19, 2015.
- 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.