REDUCTION OF MERCURY FROM A COAL FIRED BOILER

A method and system are disclosed for achieving reduced mercury emissions from a power plant at a minimum cost. The parameters of the combustion chamber and a sorbent injector are manipulated to control the residual carbon in ash and the injected sorbent. These two elements combine to reduce mercury...

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Bibliographische Detailangaben
Hauptverfasser:	ZHANG, HUI, THULEN, PAUL C, TANG, QING
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	BLASTING CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION COMBUSTION APPARATUS COMBUSTION PROCESSES FLUES GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING LIGHTING MECHANICAL ENGINEERING PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL REGULATING OR CONTROLLING COMBUSTION REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTIONRESIDUES SEPARATION TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	A method and system are disclosed for achieving reduced mercury emissions from a power plant at a minimum cost. The parameters of the combustion chamber and a sorbent injector are manipulated to control the residual carbon in ash and the injected sorbent. These two elements combine to reduce mercury in the exhaust gas to an acceptable level. La présente invention concerne un procédé et un système permettant d'obtenir des émissions réduites de mercure provenant d'une centrale électrique à un coût minimal. Les paramètres de la chambre de combustion et un injecteur de sorbant sont commandés pour contrôler le carbone résiduel dans les cendres et le sorbant injecté. Ces deux éléments sont combinés pour réduire le mercure dans le gaz d'échappement à un niveau acceptable.