关于提高活性炭除碘性能的浸渍剂的几点讨论  

Discussions on Impregnants Used for Improving the Adsorbing-radioiodine Efficiency of Activated Carbon

作　　者：张计荣[1] 李永国[1] 韩丽红[1] 吴波[1] 张群[1] 梁飞[1] 乔太飞[1] 张昭辰 

机构地区：[1]中国辐射防护研究院,太原030006

出　　处：《核安全》2016年第1期71-75,共5页Nuclear Safety

摘　　要：国内外较为普遍地应用浸渍活性炭吸附去除放射性碘,最常用的浸渍剂是碘化钾和三乙撑二胺,能有效提高活性炭吸附去除放射性甲基碘的效率。而浸渍剂三乙撑二胺将活性炭除碘性能提高的同时,也会由于其浸渍含量的不同而不同程度地降低活性炭的着火点,另外三乙撑二胺的解吸和高温分解也会影响到浸渍活性炭的除碘性能。考虑到三乙撑二胺的挥发损失,为保证活性炭浸渍后的除碘效率,推荐采用真空干燥三乙撑二胺浸渍的活性炭。鉴于三乙撑二胺浸渍剂的固有缺陷,建议深入开展浸渍剂替代品的研究。It is popular for the impregnated carbon to be used to adsorb the radioiodine. TEDA and KI are usually used as impregnants to improving the adsorbing-radioiodine efficiency of activated carbon. It maybe results in reducing the ignition temperature of impregnated activated carbon with TEDA. The efficiency of activated carbon maybe degrades for trapping the radioiodine due to the desorption and decomposion of TEDA. It is optimal to dry the impregnated activated carbon in vacuum condition. It is recommended that TEDA reagent replacement research should be started.

关 键 词：气态流出物 放射性碘 活性炭 浸渍剂 着火点 解吸 

分 类 号：TL941.2[核科学技术—辐射防护及环境保护]