Abstract: As the thermal power companies have gradually completed their ultra clean emission renovations, it becomes impractical to still use the correction factor in current national standards to examine and demonstrate the droplet testing results at the desulfurizer outlet. In this paper, the method to correct the droplet testing results based on the correction factor of solid content concentration is proposed. The new method takes the solid quantity in the actual droplet into consideration and the interference from the condensation water to the droplet mass concentration can be avoided. The proposed method has three main features, i.e. (1) it is consistent with the demister operating principles and the testing process is straightforward; (2) it is practical for lab analysis and can improve the applicability of the existing standard, which can be a reference for future projects; (3) it is ensures the fairness of demister performance evaluation, and is good for further and deeper analysis on the demister performance as well.

Key words: thermal power companies, desulfurization spray tower, demister, droplet, solid content, absorber slurry