Limestone gypsum method of flue gas desulfurization bag de-dusting there is a sequence?

In the thermal power industry, is the first denitrification, then dust removal, and finally desulfurization.

Because denitrification has a high demand for reaction temperature, the flue gas temperature is too low, you can't denitrify, so you have to denitrify first.

Desulfurization is generally used in the desulfurization tower, in order to prevent the tower plate clogging, and desulfurization of the flue gas temperature does not require, so the dust removal in the desulfurization before. After the dust removal, then desulfurization, which can prevent the desulfurization tower tower plate clogging.