Accelerated cracking of residual oils and hydrogen donation utilizing ammonium sulfide catalysts
CA 1297827 C · Owner: Rankel, Lillian A. · Inventors: Rankel, Lillian A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract, A method for accelerating the exchange of hydrogen between a hydrogen donor and a petroleum resid to be subjected to cracking visbreaking, or coking comprising incorporating an aqueous solution of ammonium sulfide into the mixture of donor and resid and subjecting the mixture to a period of heat-soaking at an elevated temperature.
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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 March 24, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 24, 2009.
- 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.