Extractive distillation process for the reduction of sulfur species in hydrocarbon streams
CA 2393591 A1 · Owner: Schucker, Robert Charles · Inventors: Schucker, Robert Charles
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for separating sulfur species from hydrocarbon streams particularly , cracked naphtha streams using extractive distillation. The method effectively separates sulfur species from cracked naphtha streams without substantially lowering the olefin content. The process involves passing a feed through inlet (12) and a solvent through inlet (14) into a distillation column (10) in order to produce a solvent bottoms which contains the sulfur species and an overhead product.
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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 December 5, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 5, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 5, 2022.
- 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.