乏燃料后处理中氪-85处理技术研究  

Understanding the Treatment Technology of Kr-85 during the Spent Fuel Reprocessing

作　　者：逄锦鑫[1] 尹玉国[1] 孙尔雁[1] Pang Jinxin;Yin Yuguo;Sun Er’yan(China Institute of Atomic Energy,Beijing 102413,China)

机构地区：[1]中国原子能科学研究院,北京102413

出　　处：《广东化工》2022年第11期78-80,共3页Guangdong Chemical Industry

摘　　要：针对核反应堆乏燃料后处理工艺过程中氪-85同位素处理需求,本文系统地分析了吸附法、低温精馏法和溶剂吸收法三种分离方法,三种分离方法均能有效的从溶解尾气中脱除氪,极大地降低乏燃料后处理厂放射性气体流出物的排放。结合三种分离方法在国际上的工程实际应用案例分析,详细的比较论述了各种分离方法的优势与不足;结合氪-85同位素的储存技术,认为低温精馏法为具有广泛应用前景的处理技术。Focusing on the needs of Krypton-85 isotope treatment in the spent fuel reprocessing process of nuclear reactors,three separation methods,adsorption,cryogenic distillation,and solvent absorption are systematically analyzed in this study.All three separation methods can effectively remove Krypton-85 from dissolved tail gas and greatly reduce the outflow of radioactive gas from spent fuel reprocessing process plants.Combined the practical engineering application cases of these methods in the world,the advantages and disadvantages of various methods are compared and discussed in detail.In combine with the storage of Krypton-85,it is believed that the cryogenic distillation method is a treatment technology with wide application.

关 键 词：乏燃料 后处理 氪-85 放射性同位素 处理技术 

分 类 号：TL24[核科学技术—核燃料循环与材料]