Is it advisable to use hot air mixing before releasing the flue gas to eliminate the \"white smoke\" in wet flue gas desulfurization?
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In the wet flue gas desulfurization process for eliminating “white smoke” from purified flue gas, discharging the gas after mixing it with hot air is a relatively feasible solution. Some enterprises have already implemented this method. Is it worth promoting?
Can it meet the standards? An increase in oxygen content is not desirable!
Mixing after detection is a good method
Flue gas whitening is a project that has recently been promoted in various regions; it brings about a significant improvement in terms of sensory perception. Essentially, there are two drawbacks: one is the increased energy consumption of the device ； Second, it cannot eliminate the contribution of aerosols to the atmosphere.
Are there effective measures to eliminate aerosols? The tailing phenomenon is indeed difficult to control.
From what I understand at the moment, there are indeed quite a number of feasible solutions for whitening, as well as mature application cases, just as mentioned in your title. The processes used are more or less the same: cooling first and then heating up. These methods can eliminate the white mist from a sensory perspective, but while the mist can be removed, I believe aerosols still exist, only appearing under conditions of high air humidity. Wet desulfurization aerosols mainly consist of SO3, while the condensation nuclei include fine catalyst powder. Neither of them can be completely removed through this process, and they are still released. The above is my personal understanding.