Scrubber for removing hydrogen sulphide from natural gas stream
CA 2385038 A1 · Owner: Longmire, Andrew J. · Inventors: Longmire, Andrew J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is concerned with a scrubber for removing hydrogen sulphide (H2S) from natural gas using an H2S-scavenging solution. The scrubber comprises an upright cylindrical vessel forming a closed chamber the vessel , having a, product outlet at its upper end. A gas feed pipe extending centrally and, longitudinally of the chamber from the upper end of the vessel delivers gas , to the, base of the chamber through an outlet formed by the pipe. The feed pipe supports a, stack of vertically spaced apart conical perforated plates that extend radially from the, feed pipe to form a narrow annular gap with the sidewall of the vessel. The feed pipe, supports a conical imperforate …
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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 May 6, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 6, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 6, 2024.
- 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.