AMMONIA OXIDATION CATALYST FOR THE COAL FIRED UTILITIES

AMMONIA OXIDATION CATALYST FOR THE COAL FIRED UTILITIES

PROBLEM TO BE SOLVED: To remove by oxidation an excess ammonia (NH) gas from flue gases that have been subjected to selective catalytic reduction (SCR) of oxides of nitrogen (NO) by ammonia injection.SOLUTION: A secondary catalyst of precious metal and vanadia on a metal oxide such as titania is inc...

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Bibliographische Detailangaben
Hauptverfasser: TRAN PASCALINE H, LAPADULA GERARD D, LIU XINSHENG
Format: Patent
Sprache:eng
Schlagworte:
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
THEIR RELEVANT APPARATUS
TRANSPORTING
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Zusammenfassung:PROBLEM TO BE SOLVED: To remove by oxidation an excess ammonia (NH) gas from flue gases that have been subjected to selective catalytic reduction (SCR) of oxides of nitrogen (NO) by ammonia injection.SOLUTION: A secondary catalyst of precious metal and vanadia on a metal oxide such as titania is incorporated to oxidize both ammonia and carbon monoxide (CO) while maintaining sulfur dioxide (SO) levels.