Sulfur recovery process for ammonia-containing feed gas

Details Sulfur recovery process for ammonia-containing feed gas Sulfur recovery process for ammonia-containing feed gas

C - Chemistry, Metallurgy

01

B

23/332

C01B 17/04 (2006.01) B01D 53/34 (2006.01)

Patent

CA 2035093

Ammonia-containing sour gas is combusted at high flame temperature with at least 90 percent purity oxygen in an externally cooled combustor, the ammonia-free product is cooled, then, in conjunction with additional acid gas which does not contain ammonia, is passed to a Claus furnace wherein less than one-third of the hydrogen sulfide is combusted with oxygen enriched air enabling boosting sulfur recovery in a Claus plant without detrimental effects on catalyst life, furnace refractories and pressure drops.

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