典型牺牲阳极在脱硫催化液中的性能研究  

Cathodic Performance of Typical Sacrificial Anodes in Sulfur Recovery Catalyst Solution

作　　者：徐传鑫 鞠虹[1] 邢少华[2] 李焰[1] XU Chuanxin;JU Hong;XING Shaohua;LI Yan(College of Mechanical and Electronic Engineering,China University of Petroleum,Qingdao 266580,China;Science and Technology on Marine Corrosion and Protection Laboratory,Luoyang Ship Material Research Institute,Qingdao 266101,China)

机构地区：[1]中国石油大学(华东)机电工程学院,山东青岛266580 [2]中国船舶重工集团公司第七二五研究所海洋腐蚀与防护重点实验室,山东青岛266101

出　　处：《材料开发与应用》2019年第3期16-21,共6页Development and Application of Materials

基　　金：国家工业与信息化部海洋工程装备科研项目“天然气液化系统硫回收装置研制”;山东省重点研发计划项目(2016GSF120007);中央高校基本科研业务费专项资金项目(18CX05021A)

摘　　要：通过恒电流实验法测试了6种常用牺牲阳极材料在不同温度的硫回收催化剂溶液中的电化学性能。结果表明,高硅铸铁牺牲阳极开路电位、工作电位稳定,表面溶解均匀,在较高温度下电流效率最高,尤其是在60℃时达到89.7%,综合性能最好;溶解的产物Fe^2+不会对原有催化剂造成影响,是一种比较理想的硫磺回收装置保护用牺牲阳极材料。By galvanostatic experiment, the electrochemical performances of six kinds of common sacrificial anodes in sulfur recovery catalyst solutions of different temperatures were tested. The results showed that the high-silicon cast iron sacrificial anode had the best overall performance. The open circuit potential and working potential of the high-silicon cast iron were stable, its surface dissolved evenly, and the current efficiency was the highest at relatively high temperature, with 89. 7% at 60℃ What' s more, the dissolved production Fe^2 + had no negative effect on the performance of the catalyst. Therefore, the high-silicon cast iron is an ideal sacrificial protection anode material for sulfur recovery unit.

关 键 词：牺牲阳极 阴极保护 硫磺回收装置 高硅铸铁 

分 类 号：TG174.3[金属学及工艺—金属表面处理]