化工进展2025，Vol.44Issue(7)：3709-3717,9.DOI:10.16085/j.issn.1000-6613.2024-0779
工业规模核用离心萃取器的水力学和传质性能
Hydraulic performance and mass-transfer efficiency of industrial-scale centrifugal contactors for nuclear industry
摘要
Abstract
The centrifugal contactor(CC)is a kind of efficient solvent extraction equipment for phase separation of two-phase by centrifugal force.The CC has many advantages when it is used in the reprocessing of spent nuclear fuel,and therefore being recognized as the development direction of nuclear extraction equipment.An industrial-scale ϕ150mm CC with 150mm in the rotor inner diameter for nuclear industry has been developed to achieve the application of CCs in future nuclear fuel reprocessing plants in China.When the rotor speed is 3000r/min,its separation factor is 755.Experimental studies were systematically carried out to obtain performance of the single-stage and 5-stage cascade industrial-scale ϕ150mm CCs for nuclear industry using 30%TBP/kerosene-HNO3 solution extraction system.It is shown that the maximum processing capacity and mass transfer efficiency of the ϕ150mm CC for nuclear industry can reach 1532L/h and 96%under certain experimental conditions,respectively,which shows that the ϕ150mm CC for nuclear industry has excellent hydraulic performance and mass-transfer efficiency.Meanwhile,the liquid hold-up volume of a stage is about 6.33-6.53L.All of these indicate that the industrial-scale ϕ150mm CC for nuclear industry meets the requirements of nuclear fuel reprocessing plants for extraction equipment,and thus has good application prospect.关键词
离心萃取器/核燃料后处理/水力学性能/传质性能Key words
centrifugal contactor/reprocessing of spent nuclear fuel/hydraulic performance/mass-transfer efficiency分类
化学化工引用本文复制引用
段五华,孙涛祥,郑强..工业规模核用离心萃取器的水力学和传质性能[J].化工进展,2025,44(7):3709-3717,9.基金项目
国家自然科学基金(21978149). （21978149）
