Study on Synergistic Desulfurization and Chlorine Resistance of Alkaline Metal Oxides@ZrO2/γ‐Al2O3‐Loaded Catalysts

• Published in: Advanced engineering materials Vol. 27; no. 9
• Main Authors: Zhang, Lei, Mu, Yidan, Chen, Ya, Lu, Xi, Song, Ruikang
• Format: Journal Article
• Language: English
• Published: 01.05.2025
• Subjects: alkaline active component; blast furnace gas; CaO–ZrO2/γ‐Al2O3 hydrolysis catalyst; carbonyl sulfide (COS) removal; chlorine resistance
• ISSN: 1438-1656; 1527-2648
• DOI: 10.1002/adem.202500654

In this article, the atmospheric pollutants carbonyl sulfide (COS) and HCl in blast furnace gas are taken as the research object. Catalysts with γ‐Al2O3 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–ZrO2/γ‐Al2O3 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 H2S is also maintained at more than 80%. At the same time, the synergistic desulfurization and chlorine resistance treatment efficiency of CaO–ZrO2/γ‐Al2O3 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. In this article, a carbonyl sulfide decomposition catalyst with γ‐Al2O3 as the carrier and alkali metal oxide as the active component is prepared, and the desulfurization and chlorine resistance of the catalyst are studied, which lay a foundation for the removal of pollutants from industrial blast furnace gas.