Systems and methods for ammonia recovery, acid gas separation, or combination thereof
AssigneeInnovator Energy, LLC
InventorEthan J. Novek
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Abstract
The present invention relates to processes and systems for ammonia recovery and/or acid-gas separation. In some embodiments, a system for acid gas separation may be integrated with an ammonia abatement cycle employing a high temperature absorber. In some embodiments, a system for acid gas separation may employ a higher temperature absorber due to the lower energy consumption and cost of the integrated ammonia abatement cycle. Advantageously, heat may be recovered from the absorber to power at least a portion of any acid gas desorption in the process. Reverse osmosis or other membranes may be employed.
Claims11
A process comprising:
- absorbing ammonia using a first aqueous solution comprising an acidic common ion salt to form a second solution comprising an ammonia-rich aqueous ammonia-common ion salt;
- and
- absorbing carbon dioxide into the second solution under conditions to form a precipitate comprising an ammonia-carbon dioxide salt.
A process comprising:
- absorbing ammonia using a first aqueous solution comprising an acidic common ion salt to form a second solution comprising an ammonia-rich aqueous ammonia-common ion salt;
- and
- absorbing carbon dioxide into the second solution to form an ammonia-carbon dioxide salt.
Dependencies are inferred from the claim text.