Investigation of the Sorption Properties of Ore Materials for the Removal of Sulfur Dioxide from Exhaust Flue Gases of Power Plants

The prospects of using a natural material – ferromanganese nodules (FMN) from the Gulf of Finland – as the SO 2 adsorbent are discussed. The starting material was studied as pellets and powder using X-ray fluorescence spectroscopy, XRD, BET, and mechanical strength analysis; dependences of physicochemical parameters of the material on heat treatment at 100-1000 oC were found. FMN samples were tested in the process of SO 2 sorption. The sorptive capacity of FMN samples for SO 2 was found to increase with humidity of adsorbents; FMN samples with a humidity above 40% were shown to be promising for the removal of sulfur dioxide from gases.