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US 2026/0257930 A1Published application
Method for the combined removal of hydrogen sulfide from a raw gas mixture ammonia from a waste liquid
OwnerBonno KOERSinventor
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Abstract
The present disclosure is based on the combined removal of hydrogen sulfide from a raw gas mixture and removal of ammonia from a waste liquid. The disclosure relates to a method for the combined removal of hydrogen sulfide from a raw gas mixture and removal of ammonia from a waste liquid. The disclosure also relates to a method for the production of ammonium sulfate.
Claims28
A method for the combined removal of hydrogen sulfide from a raw gas mixture and removal of ammonia from a waste liquid, comprising:
- contacting a stream of a raw gas mixture containing hydrogen sulfide and a stream of an alkaline aqueous slurry comprising ammonia in a first unit, wherein upon contacting said raw gas mixture with said slurry at least part of the hydrogen sulfide is dissolved into said slurry and at least partially converted to ammonium sulfide;
- and
- passing said slurry from said first unit to a second unit wherein said slurry is subjected to aerobic conditions so as to effect oxidation of said ammonium sulfide to produce ammonium sulfate.
A method for the production of ammonium sulfate, comprising:
- contacting a stream of a raw gas mixture containing hydrogen sulfide and a stream of an alkaline aqueous slurry comprising ammonia in a first unit, wherein upon contacting said raw gas mixture with said slurry at least part of the hydrogen sulfide is dissolved into said slurry and at least partially converted to ammonium sulfide;
- and
- passing said slurry from said first unit to a second unit wherein said slurry is subjected to aerobic conditions so as to effect oxidation of said ammonium sulfide to produce ammonium sulfate.
Dependencies are inferred from the claim text.