Hydrogenation of undissolved coal and subsequent liquefaction of hydrogenated coal
CA 1232220 A · Owner: Hri, Inc. · Inventors: Comolli, Alfred G.; Hippo, Edwin J.; O'Brien, Robert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A staged process for hydrogenation of undissolved coal and subsequent liquefaction of the hydrogenated coal to provide useful hydrocarbon liquid products including naphtha, gasoline and diesel fuels. These low boiling hydrocarbon liquids are produced by the process comprising: (a) mixing solid coal particles with a hydrocarbon solvent oil in a solvent/coal ratio ranging from about 8/1 to about 1.5/1 to provide a flowable coal/oil slurry; (b) passing said coal/oil slurry and hydrogen upwardly through a first stage reaction zone containing a coal-derived liquid in a catalytic bed of particulate; catalyst maintained at a temperature ranging from about 400° to about 700°F and a hydrogen partial …
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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 February 2, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 2, 2005.
- 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.