| 摘要 |
A method and system for removing pollutants from a flue gas stream ( 20 ) by utilizing excess ammonia present in the system as a reagent for NOx removal. The method includes contacting the flue gas stream ( 20 ) with an ammonia scrubbing solution ( 29 ) and passing the flue gas stream ( 20 ) through a selective catalytic reduction system ( 32 ), wherein the selective reduction system ( 32 ) utilizes excess ammonia present in the flue gas stream ( 20 ) as a reagent to remove NOx from the flue gas stream ( 20 ).
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