CHILLED AMMONIA BASED CO2 CAPTURE SYSTEM WITH WATER WASH SYSTEM
First Claim
1. A system for reducing an amount of ammonia in a flue gas stream, the system comprising:
- a wash vessel for receiving an ammonia-containing flue gas stream, the wash vessel including a first absorption stage and a second absorption stage, each of the first absorption stage and the second absorption stage having a mass transfer device; and
a liquid introduced to the wash vessel, the liquid for absorbing ammonia from the ammonia-containing flue gas stream thereby forming an ammonia-rich liquid and a reduced ammonia containing flue gas stream exiting the wash vessel.
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Accused Products
Abstract
A method and system for reducing an amount of ammonia in a flue gas stream. The system 100 includes: a wash vessel 180 for receiving an ammonia-containing flue gas stream 170, the wash vessel 180 including a first absorption stage 181a and a second absorption stage 181b, each of the first absorption stage 181a and the second absorption stage 181b having a mass transfer device 184; and a liquid 187 introduced to the wash vessel 180, the liquid 187 for absorbing ammonia from the ammonia-containing flue gas stream 170 thereby forming an ammonia-rich liquid 192 and a reduced ammonia containing flue gas stream 190 exiting the wash vessel 180.
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Citations
11 Claims
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1. A system for reducing an amount of ammonia in a flue gas stream, the system comprising:
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a wash vessel for receiving an ammonia-containing flue gas stream, the wash vessel including a first absorption stage and a second absorption stage, each of the first absorption stage and the second absorption stage having a mass transfer device; and a liquid introduced to the wash vessel, the liquid for absorbing ammonia from the ammonia-containing flue gas stream thereby forming an ammonia-rich liquid and a reduced ammonia containing flue gas stream exiting the wash vessel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A system for reducing an amount of ammonia in a flue gas stream, the system comprising:
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an absorbing system having one or more absorbers to absorb carbon dioxide (CO2) from a cooled flue gas stream having a temperature below ambient temperature, the absorbing system operates at a temperature between 0° and
20°
Celsius, wherein at least a portion of the CO2 is absorbed by an ammoniated solution or slurry thereby producing an ammonia-containing flue gas stream; anda wash vessel configured to receive at least a portion of the ammonia-containing flue gas stream, the wash vessel includes one or more absorption stages, each of the one or more absorption stages having a spray head system and a mass transfer device selected from random packing material, hydrophilic packing material, and structural packing, wherein the spray head system directs a liquid in a direction countercurrent to a direction of the ammonia-containing flue gas stream, the liquid absorbing ammonia from the ammonia-containing flue gas stream and thereby forming an ammonia-rich liquid and a reduced-ammonia flue gas stream, whereby at least a portion of ammonia present in the ammonia-containing flue gas stream is removed from the ammonia-containing flue gas stream in the one or more absorption stages of the wash vessel. - View Dependent Claims (10, 11)
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Specification