Study on Desulfurization of SO2 by Co3O4-γ-Al2O3 /ATP Desulphurizer

Abstract

A kind of new desulphurization agent Co₃O₄-γ-Al₂O₃/ATP, which was an composite desulphurization adsorbent that made of the mixture of γ-Al₂O₃(34%wt) and attapulgite(65%wt ,ATP, produced in Gansu Linze) and some additives(1%wt), and coated with the metal oxide(Co₃O₄), was studied. The influences of containing water rate and Co₃O₄ content of the Co₃O₄-γ-Al₂O₃ /ATP desulphurizer on SO₂ desulphurization capability were also studied. According to the experiments, when Co₃O₄ content is about 3%~5%, and containing water rate of the desulphurizer is 15wt%˜30wt%, the desulphurization adsorbent has good adsorptivity and good desulphurization ability as a catalysis agent. Its sulfur tolerance is 19.74%, which is superior than that of CuO-γ-Al₂O₃/ATP and CuO/γ-Al₂O₃ desulphurizers.