期刊论文

Experimental Study on Gas-Liquid Partition Coefficient and Thermal Decomposition Characteristics of Ethanolamine in High-Temperature Aqueous Systems

中文

中国电力

1004-9649

2018

51

5

128-133

10.11930/j.issn.1004-9649.201708272

国家重大科技专项资助项目（2011ZX06004-017） 湖南省科技计划重点资助项目（2013GK2006））.

本校为第一机构

中国第三代核电选定乙醇胺(ETA)作为二回路碱化剂,但目前有关ETA汽液分配系数、高温分解特性研究不够全面,难以满足各种参数核电站的应用需求。采用高压釜模拟核电站二回路的工作压力与温度,采用特制取样装置得到了试验中汽、液两相样品,利用离子色谱、总有机碳(TOC)分析等手段研究了汽、液两相样品在不同温度下相对挥发度、热分解率及TOC含量;同时提出汽相总碱与液相总碱浓度比计算公式,用以评价汽液两相碱化剂的分布状况。研究结果表明:ETA汽液分配系数低,有利于提高二回路系统液相的pH值。在无氧条件下ETA的热稳定性好,即使300 ℃下热分解率也不超过1.0%/h;但含氧会加速ETA分解,其分解产物中...

Ethanolamine （ETA） has been selected as the pH control agent for the secondary loop in the third generation nuclearpower plant. However, the research on ETA gas-liquid partition coefficient and high-temperature degradation is not comprehensiveenough to satisfy the application requirements of various parameters in nuclear power plant. In this paper, the working pressure andtemperature of the secondary loop of nuclear power plant are simulated by high-pressure autoclave. The gas and liquid samples areobtained by special sampling device. The rel...