浸渍炭催化剂的氨味逸出成因调查  

Investigationon the ammonia evolution from impregnated carbon catalyst

作　　者：裴佩 温宇慧 赵晴 郭军军 崔洪 Pei Pei;Wen Yuhui;Zhao Qing;Guo Junjun;Cui Hong(Shanxi Xinhua Chemical Defense Equipment Research Institute Co.,Ltd.,Taiyuan 030008,Shanxi,China)

机构地区：[1]山西新华防化装备研究院有限公司催化剂研究所,山西太原030008

出　　处：《工业催化》2022年第3期43-48,共6页Industrial Catalysis

摘　　要：按照ASC浸渍炭的生产工艺,在活性炭上进行了单组分和多组分的浸渍,并对所制备的浸渍炭进行“氨味”逸出评价。实验结果表明,浸渍组分中的氨水、碳酸氢铵、碱式碳酸铜对“氨味”逸出程度的影响不显著。浸渍组分铬酸酐与氨水形成的铬酸铵是氨味释放的主要来源。通过提高焙烧温度、水洗等措施可以促进浸渍炭表面残留铬酸铵的分解和消除,但也会造成浸渍炭对氯化氰(相对湿度RH为0~50%)防护性能的下降。Impregnated carbon catalysts were prepared by impregnating single-component and multi-components on activated carbon according to ASC production processand weretested for ammonia evolution.The experimental results showed that aqueous ammonia,ammonium bicarbonate and basic copper carbonate in impregnating components hadinsignificant effect on ammonia evolution;ammonium chromate from the reaction between impregnating component chromic anhydride and aqueous ammoniawas the main source of ammonia release.Raising calcination temperature or water-rinse can promote decomposition and elimination of the residual ammonium chromate onthe surface of the impregnated carbon,but meanwhile result in deterioration in performance of the impregnated carbon for protection from cyanogen chloride(RH 0-50%).

关 键 词：催化剂工程 浸渍炭 氨味逸出 氨味消除 防护性能 

分 类 号：TQ426.6[化学工程] X701[环境科学与工程—环境工程]