Analysis and Solutions for Flue Gas Drift in Catalytic Flue Gas Desulfurization
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Dear sea friends, our company uses wet flue gas desulfurization for catalytic flue gas desulfurization; 30% sodium hydroxide is employed as the absorbent, and a two-stage absorption process is applied. The levels of SO2, NOX, and particulate matter in the purified flue gas discharged are within acceptable limits, but there is a noticeable trailing effect, giving the gas a bluish appearance. I wonder if anyone else has encountered this issue – please share your insights!
It’s quite common; there is SO3 in the smoke
Do your flue gases have a reburning system? Is it incomplete combustion?
Without a afterburning system, we do experience residual combustion in the flue gases; I’m not sure if this is the cause
However, our indicators for exhaust gas emissions are within normal ranges; there is no excess
But the sulfur content in our exhaust gases does not exceed the limits; is there any way to address the trailing issue?
Normal flue gas monitoring only detects sulfur dioxide; sulfur trioxide is not detected