Study on Synergistic Desulfurization and Chlorine Resistance of Alkaline Metal Oxides@ZrO<sub>2</sub>/γ‐Al<sub>2</sub>O<sub>3</sub>‐Loaded Catalysts
Lei Zhang, Yidan Mu, Ya Chen, Xi Lu, Ruikang Song
Abstract
In this article, the atmospheric pollutants carbonyl sulfide (COS) and HCl in blast furnace gas are taken as the research object. Catalysts with γ‐Al 2 O 3 as carrier and alkaline metal oxides as active components are prepared for the synergistic desulfurization and chlorine resistance of blast furnace gas. The results show that the CaO–ZrO 2 /γ‐Al 2 O 3 hydrolysis catalyst has the best performance. The removal rate of COS is maintained at more than 95 wt%, and the maximum can reach 99 wt%, and the overflow rate of H 2 S is also maintained at more than 80%. At the same time, the synergistic desulfurization and chlorine resistance treatment efficiency of CaO–ZrO 2 /γ‐Al 2 O 3 hydrolysis catalyst is maintained at about 90%. This work provides an effective reference for the synergistic removal of acidic and harmful components in actual industrial blast furnace gas.