C - Chemistry – Metallurgy – 01 – B
Patent
C - Chemistry, Metallurgy
01
B
23/122, 23/332
C01B 17/50 (2006.01) C01B 17/04 (2006.01) F23D 14/22 (2006.01) F23D 14/32 (2006.01)
Patent
CA 1306096
ABSTRACT 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 outlet of the burner. Temperatures in the range from 2000 to 3000°C are generated in the core zone of the burner flame. A gas mixture which contains at least 2% by volume CO and at least 8% by volume H2 and is at temperatures from 1350 to 1650°C is withdrawn from the combustion chamber.
575420
Fischer Herbert
Kriebel Manfred
Metallgesellschaft Aktiengesellschaft
Robic
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