System for recovery of sulfur and hydrogen from sour gas
CA 2367846 A1 · Owner: University Of Wyoming · Inventors: Linjewile, Temi M.; Agarwal, Pradeep K.; Hull, Ashley S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process and apparatus is provided for the removal of contaminants such as , hydrogen sulfide, carbon dioxide and water out of natural gas (1) is , provided. The apparatus comprises a plurality of purifying fluidized beds each of which contains an adsorbent, such as molecular sieve 5A and which , operates at a temperature ranging from about 20 ~C to about 60 ~C and removes at least a portion of the hydrogen sulfide and other contaminants from the natural gas so as to provide a purified natural gas (2) and a contaminant loaded adsorbent. The contaminant loaded adsorbent is regenerated in a regenerator unit at a temperature of about 100 ~C to about 300 ~C to produce a regenerated …
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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 March 23, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 23, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 23, 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.