The invention provides a method for removing various
gaseous pollutants from
smoke gas, which is used for solving the problem of limitation of the control and government technology on various pollutants in the
smoke gas. The invention utilizes an absorption
tower for fully removing SO2,
NOX, mercurial vapor and CO2 in the
smoke gas, the lower part of the absorption
tower is provided an absorptionpulp tank, the middle of the absorption
tower is provided with a spraying
pipe, the upper part of the absorption tower is provided with an
oxidizing agent pipe, the absorption tower is provided with partition boards in the vertical direction, both sides of the partition boards are respectively a desulfurization work section and a denitration and
decarburization work section, the upper part of theabsorption tower is a communication oxidization region, the smoke gas enters the desulfurization work section from an inlet of the absorption tower to complete the removal of SO2 and HCL, the smoke gas continuously goes upwards to enter the oxidization region, and
NOX is oxidized into water-soluble high
oxide in the oxidization region and then enters the denitration and
decarburization work section to complete the removal of the
NOX, the mercurial vapor and the CO2. The invention breaks through the technical bottlenecks of complicated equipment and high running cost for simultaneously removing various
gaseous pollutants from the smoke gas in the prior art. The process method and the device of the invention have the unique novelty.