燃料化学学报（中英文）2025，Vol.53Issue(6)：927-934,8.DOI:10.1016/S1872-5813(24)60522-0
蜂窝陶瓷负载的Fe-Cr复合催化剂CO催化还原脱硝性能研究
Performance of honeycomb ceramic alumina supported Fe-Cr composite catalyst in the flue gas DeNOx by selective catalytic reduction with CO
李东珂 1孙瑜雪 1韩宇 1范晓星 1郭强2
作者信息
- 1. 辽宁大学物理学院,辽宁沈阳 110036
- 2. 绿源能源环境科技集团有限公司,北京 110000
- 折叠
摘要
Abstract
Using CO for the selective catalytic reduction(CO-SCR)of NOx can significantly reduce the De-NOx cost of boiler flue gas treatment.In this work,the catalytic performance of honeycomb ceramic alumina supported Fe-Cr composite(Fe-Cr/HCA)in the flue gas DeNOx by CO-SCR was investigated at high temperature and the catalyst preparation parameters like the bimetallic ratio,aging temperature and metal loading amount were optimized.The results indicate that a solid solution of FeCr2O4 is formed on the Fe-Cr/HCA catalyst surface and the synergy between Fe2O3 and Cr2O3 greatly promote the De-NOx efficiency by CO-SCR.In particular,the Fe-Cr/HCA catalyst,prepared with a Fe/Cr ratio of 1,aging temperature of 300 ℃and impregnation for 15 times,exhibits excellent performance in the CO-SCR of NOx where the NO conversion approaches 100％at 400-800 ℃ under the tested conditions.Additionally,the catalyst impregnated six times can be utilized in practical applications.The catalyst surface forms a solid solution of FeCr2O4,with the synergistic effects of Fe2O3 and Cr2O3 enhancing denitration efficiency.关键词
蜂窝陶瓷氧化铝/Fe-Cr复合催化剂/CO选择催化还原脱硝/Fe-Cr/HCAKey words
honeycomb ceramic alumina/Fe-Cr composite catalyst/De-NOx by CO-SCR/Fe-Cr/HCA分类
资源环境引用本文复制引用
李东珂,孙瑜雪,韩宇,范晓星,郭强..蜂窝陶瓷负载的Fe-Cr复合催化剂CO催化还原脱硝性能研究[J].燃料化学学报（中英文）,2025,53(6):927-934,8.
