一回路条件下甲醇水溶液的辐射分解研究进展  

Research progress on the radiolysis of methanol aqueous solutions under primary circuit conditions

作　　者：王怡 汤嘉 杨雨 杨旸 鲁芸芸[1] 代爽 曹骐[1] WANG Yi;TANG Jia;YANG Yu;YANG Yang;LU Yunyun;DAI Shuang;CAO Qi(Nuclear Power Institute of China,Reactor Operation and Application Research Sub-Institute,Chengdu 610200,China)

机构地区：[1]中国核动力研究设计院反应堆运行与应用研究所,成都610200

出　　处：《辐射研究与辐射工艺学报》2024年第3期1-10,共10页Journal of Radiation Research and Radiation Processing

基　　金：中国核动力研究设计院科技创新基金(KJCX-2023-YC2-006)资助。

摘　　要：采取有效的水化学技术可以抑制压水堆一回路冷却剂辐射分解并减缓材料腐蚀。相关研究与运行经验表明,甲醇有望作为压水堆冷却剂水质转型的候选添加物,但目前缺乏一回路条件下甲醇辐解行为及机制的深刻认识,难以支撑基于甲醇的水化学控制目标。本文首先介绍了甲醇辐解研究的必要性,总结了国内外甲醇及其水溶液辐解研究的进展情况,详细论述了常温下甲醇辐解产物产额与自由基反应,以及一回路条件下甲醇水溶液的辐解及其对材料腐蚀的影响,并对后期开展甲醇水溶液辐解相关研究提出建议。Effective water chemistry technology can inhibit the radiolysis of primary coolants and material corrosion in pressurized water reactors(PWRs).Research and operational experience suggest that methanol is a potential additive for the coolant transformation of PWRs.However,due to a lack of comprehensive understanding regarding the behavior and mechanism of methanol radiolysis in primary circuit scenarios,supporting methanol-based water chemistry control is challenging.This study initially outlines the importance of methanol radiolysis.It then summarizes global research progress on methanol radiolysis and its aqueous solution.Additionally,it discusses the yield of methanol radiolysis products and free-radical reactions at room temperature,as well as the radiolysis of methanol aqueous solutions under primary circuit conditions and its impact on material corrosion,are then discussed in detail.Finally,the study offers suggestions for future research on the radiolysis of methanol aqueous solutions.

关 键 词：甲醇 水溶液 辐解 腐蚀 一回路条件 

分 类 号：TL13[核科学技术—核能科学]