Photolytic method of improving mercury capture in fossil (coal) fired systems

Photolytic method of improving mercury capture in fossil (coal) fired systems

A combustion-based system and related method includes a combustor for burning a combustible material, wherein an exhaust gas stream output by the combustor includes NO2 and at least one metal including mercury. An ultraviolet light source is in optical communication with the exhaust gas stream. Ultr...

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Bibliographische Detailangaben
1. Verfasser: RISING BRUCE
Format: Patent
Sprache:eng
Schlagworte:
BLASTING
COMBUSTION APPARATUS
COMBUSTION PROCESSES
FLUES
HEATING
LIGHTING
MECHANICAL ENGINEERING
REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTIONRESIDUES
WEAPONS
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Beschreibung
Zusammenfassung:A combustion-based system and related method includes a combustor for burning a combustible material, wherein an exhaust gas stream output by the combustor includes NO2 and at least one metal including mercury. An ultraviolet light source is in optical communication with the exhaust gas stream. Ultraviolet light from the light source photochemically dissociates at least a portion of the NO2 to form an NO2 reduced exhaust stream. A sorbent containing filter media receives the NO2 reduced exhaust stream and as a result of the reduction in NO2 provides improved trapping efficiency of mercury.