Process of removing hydrogen sulfide from exhaust gas
CA 1306096 C · Owner: Fischer, Herbert · Inventors: Fischer, Herbert; Kriebel, Manfred
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A feed gas which contains H2S is combusted with oxygen and air in at least one burner, which opens into a combustion chamber. The resulting gas mixture contains H2S and SO2 and is intended to be converted to elementary sulfur by the Claus process. The combustion chamber is supplied with oxygen through a central tube of the burner with the, H2S-containing feed gas through a second tube which co-, axially surrounds the central tube and with air through a, coaxial outer tube. The feed gas supplied to the burner contains H2S and at least 5% by volume hydrocarbons or CO2. Velocities of flow of oxygen of 50 to 250 m/sec. and of the H2S-containing feed gas of 10 to 30 m/sec. are adjusted at the …
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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 August 11, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 11, 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.