PUREX流程化学试验简易传质应用模型
Simple Mass Transfer Application Model for PUREX Process Chemical Experimentation
黄宾虹 1侯奇杰 1孙宁 1张托弟 1谢代念 1张玉秀 1李培艳 1王萌 1俞梦涛1
作者信息
- 1. 中核四0四有限公司,甘肃 兰州 732850
- 折叠
摘要
在动力堆乏燃料后处理化学试验阶段,由于设备选型、安装精度的差异,很难制定明确的酸传质平衡验收准则.为提升化学试验规范化水平进行了酸传质实验,测定了纯酸体系下的分配系数工程经验方程,在萃取平衡后水相硝酸浓度 2.09 mol/L时达到峰值 0.223,并依据经验方程建立了PUREX流程化学试验简易传质应用模型,最终制定了适配的酸传质平衡验收准则.
Abstract
In the chemical experimentation stage of spent fuel reprocessing,it is difficult to establish clear acceptance criteria for acid transfer balance due to the difference of equipment selection and installation accuracy.In order to improve the standardization level of chemical experimentation,acid mass transfer experiments were carried out with the actual equipment of a nuclear chemical project,and the engineering empirical equation of the distribution coefficient under the pure acid system was determined,which reached a peak value of 0.223 when the concentration of aqueous phase nitric acid was 2.09 mol/L after extraction equilibrium.Based on the empirical equation,a simple mass transfer application model for chemical experimentation of PUREX process was established.Finally,the acceptance criterion of acid mass transfer balance suitable for a nuclear chemical project was developed.
关键词
PUREX/化学试验/乏燃料/后处理/传质Key words
purex/chemical experimentation/spent fuel/reprocessing/mass transfer引用本文复制引用
出版年
2024
NETL
NSTL
万方数据