Abstract
This study presents an originally designed device named as wet phase transition agglomerator (WPTA) based on vapour condensation agglomeration and collection mechanism. This technology has achieved demonstration and commercialization in several industrial/utility boilers. Excellent performances have been validated in fine particles and trace elements synergistic removal, latent heat and water recovery, and sulfuric acid mist control. The vapour condensation produced by the WPTA greatly improve the agglomeration among fine particles and subsequent removal. The removal efficiency of WPTA combined with wet electrostatic precipitator (WESP) for PM1.0 at 600 MW was enhanced by 15%, compared to the operation at WPTA shutdown. About 13.4–15.6 t/h of condensing water was recovered when the designed flue gas temperature was decreased by 1–1.5 °C. Moreover, the WPTA was capable of significantly improving the removing amounts of soluble salts and trace elements from flue gases.
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