【作者】 王岩； 朱荣凯； 矫彩山；

【Author】 WANG Yan;ZHU Rong-kai;JIAO Cai-shan;Harbin Engineering University;

【机构】 哈尔滨工程大学核科学与技术学院；

【摘要】 为了研究液相催化交换柱内氢同位素的浓度分布及分离性能,建立了包含水蒸气相在内的气-汽-液三相传质过程的数学模型并编写了计算过程的程序。以HT/H₂O体系的分离为研究对象,根据催化剂与填料性能指标,计算了为达到特定脱氚率和浓缩倍数要求时液相催化交换柱内的有效填料层高度、进液位置以及氚的浓度分布;同时,对联合电解催化交换系统内氚浓度的动态变化规律及影响因素等也进行了计算分析。计算结果表明,催化剂和填料性能对于液相催化交换性能有重要影响,且降低贮液池、电解池持液量能够有效减少整个联合电解催化交换系统达到稳定运行状态的时间,计算结果与实际过程吻合良好。更多还原

【Abstract】 In order to study the concentration distribution ofhydrogen isotopes and the separation performance in the liquid phase catalytic exchange column,themass transfer of gas-vapor-liquid three phase model is established and the program is written for the calculationof process.Selecting HT/H₂ O system as the research object,according toperformance of catalyst and packing,effective packing layer height,feed liquid location and tritium concentration distribution along the column was calculated for the givenconcentration of tritium and its enrichment ratio in water.At the same time,the combined electrolysis catalytic exchange system of the dynamic change rule and influence factors has also been studied.The results show that catalyst and packing have important influence for performance of liquid phase catalytic exchange,and if the liquid holdup of pool,electrolytic cell is reduced,then the whole process of CECE will quickly reach its stable state,the calculation results are in good agreement with those data obtained from the actual process.更多还原