Process and apparatus for converting hydrogen sulfide into hydrogen and sulfur
CA 2598094 C · Owner: Selinger, Richard R. · Inventors: Thicke, Brian R.; Selinger, Richard R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process and apparatus for obtaining a hydrogen product and a sulfur product from a feed gas. The feed gas includes hydrogen sulfide the hydrogen product , includes elemental hydrogen and the sulfur product includes elemental sulfur. In the process, a first separating step separates the feed gas to obtain a first purified hydrogen sulfide fraction comprised of at least about 90 percent hydrogen sulfide by volume. A dissociating step dissociates hydrogen sulfide present in the first purified hydrogen sulfide fraction to convert it into a dissociated first purified hydrogen sulfide fraction including elemental hydrogen and sulfur. A second separating step separates the dissociated …
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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 22, 2005 and granted December 2, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 22, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.