HIGH ROTATIONAL MOMENTUM DISPERSER AND USE

A spray dryer disperser (24, 26, 28, 30) is described for use in a spray dryer absorption (SDA) system (18) for flue gas FG impurity reduction. As such, the spray dryer disperser (24, 26, 28, 30) disperses absorbent liquid or reagent slurry droplets into contact with a hot flue gas FG stream contain...

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Bibliographische Detailangaben
1. Verfasser:	Rafidi, Nabil Elias
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL ATOMISING APPARATUS BLASTING DRYING DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM HEATING LIGHTING MECHANICAL ENGINEERING NOZZLES PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION SPRAYING APPARATUS SPRAYING OR ATOMISING IN GENERAL TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	A spray dryer disperser (24, 26, 28, 30) is described for use in a spray dryer absorption (SDA) system (18) for flue gas FG impurity reduction. As such, the spray dryer disperser (24, 26, 28, 30) disperses absorbent liquid or reagent slurry droplets into contact with a hot flue gas FG stream containing gaseous impurities to produce a flue gas FG stream of reduced impurity content and dry powder end products EP. The spray dryer disperser (24, 26, 28, 30) is useful in larger capacity SDA vessels (22) of approximately 12 to 22 meters in diameter or larger, to avoid disperser (24, 26, 28, 30) shroud (34a) scale deposits, to avoid reagent slurry spray cloud suppression, to avoid vessel (22) wall (22b) scale deposits and to achieve increased droplet rotational momentum for increased droplet flue gas FG penetration for efficient impurity reduction.