离子交换膜电解槽电解海水制氯技术的验证  

Verification of chlorine production through seawater electrolysis using ion-exchange membrane electrolytic bath

作　　者：邓亚东 魏威[1] 雍兴跃[1] 周欢 张聪[2] 李崇杰 史亚南 DENG Yadong;WEI Wei;YONG Xingyue;ZHOU Huan;ZHANG Cong;LI Chongjie;SHI Yanan(State Key Laboratory of Organic-Inorganic Composites,Beijing University of Chemical Technology,Beijing 100029,China;China Ship Development and Design Center,Wuhan 430064,China)

机构地区：[1]北京化工大学有机无机复合材料国家重点实验室,北京100029 [2]中国舰船研究设计中心,湖北武汉430064

出　　处：《中国舰船研究》2021年第6期216-224,230,共10页Chinese Journal of Ship Research

摘　　要：[目的]针对现有海洋防污技术存在的问题,设计一种用于防污的离子交换膜电解槽电解海水制氯系统,以研究该电解槽在不同电解条件下的电解规律及效率。[方法]首先,探究稀盐水温度、盐浓度、电流密度和停留时间等因素对电解过程的影响;然后,在上述基础上,采用Minitab软件以比能量消耗率为考核指标,优化电解参数;最后,通过实海试验对海水预处理和电解工艺进行验证。[结果]验证结果表明:电流密度和停留时间的最佳参数分别为3000 A/m2及46 s;电流效率超过80%,槽压小于6 V;电解后的阴阳两极和离子膜表面干净。[结论]结果表明所设计的系统适合用于电解海水制氯防污。[Objective]To prevent the marine biofouling adhesion and corrosion of ship hulls and pipes,a system is designed which produces chlorine through seawater electrolysis using an ion-exchange membrane electrolytic bath.Thereby,the law and efficency of the electrolytic bath under different conditions is studied.[Methods]First,the effects of brine temperature,brine concentration,current density and time of brine resided in the bath on the efficiency of the electrolysis process are investigated.Minitab software is then used to optimize the parameters of the electrolysis process using the specific energy consumption rate as the evaluation index.Finally,the seawater pretreatment process and electrolysis process are verified on site under real sea conditions.[Results]The current density and residence time of the electrolysis parameters were reasonably controlled at 3000 A/m2 and 46 s respectively,in this case,the current efficiency was higher than 80%,the cell voltage was lower than 6 V,and the surfaces of the anodes,cathodes and ion-exchange membranes after electrolysis were clean.[Conclusion]The practical tests show that this system can produce chlorine for anti-fouling.

关 键 词：电解海水 制氯 防污 离子交换膜电解槽 电流效率 海水预处理 

分 类 号：U672.72[交通运输工程—船舶及航道工程]