Sulfur dioxide gas catalytic adsorption treatment method and treatment system

The invention discloses a sulfur dioxide gas catalytic adsorption treatment method and treatment system. The method comprises the following steps: step 1, cooling and separating sulfur dioxide gas; 2, secondary purification of sulfur dioxide gas; 3, catalytic adsorption of sulfur dioxide gas; 4, tail gas detection and emission. And after the solid catalytic adsorbent is saturated, regenerating the solid catalytic adsorbent by adopting reducing gas. According to the treatment method and the treatment system, the process and the treatment system can be effectively simplified, so that the treatment cost is reduced; meanwhile, corrosion to equipment in the absorption process can be reduced, and the service life of the equipment is prolonged. In the scheme, the sulfur dioxide gas is purified twice in the adsorption treatment process, and the purity of the sulfur dioxide gas entering the solid catalytic adsorbent is higher, so that the difficulty of catalytic adsorption can be effectively reduced, and the adsorptio