Two-stage coal liquefaction process
CA 1210723 A · Owner: International Coal Refining Company (A Partnership) · Inventors: Skinner, Ronald W.; Tao, John C.; Znaimer, Samuel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improved SRC-I two-stage coal liquefaction process which improves the product slate is provided. Substantially all of the net yield of 650-850°F heavy distillate from the LC-Finer is combined with the SRC process solvent substantially, all of the net 400-650°F middle distillate from the SRC section is combined with the hydrocracker solvent in the LC-Finer and, the initial boiling point of the SRC process solvent is increased sufficiently high to produce a net yield of 650-850°F heavy distillate of zero for the two-stage liquefaction process.
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 September 2, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 2, 2003.
- 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.