Recovery of promoters used in flue gas desulfurization

Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Alkali metal

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423155, 423179, 423205, 423244, 423635, 423641, B01D 2100

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active

047241306

ABSTRACT:
In flue gas desulfurization, sorbent promoters are recovered by mixing collected particulates with water to form a slurry. The slurry is dewatered and wet solids are disposed. The recovered material contains water soluble desulfurization promoters and is reinjected in a flue gas desulfurization humidification system. The recycle allows recovery of water soluble promoters and reduces consumption. In addition, for promoters having undesirable disposal characteristics, the system improves the disposal characteristics of the waste solids.

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