期刊
CORROSION SCIENCE
卷 106, 期 -, 页码 281-292出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2016.02.013
关键词
Carbon steel; Polarization; ICP-OES; Alkaline corrosion; Rust; Passivity
资金
- LGE and KU Energy
- Kentucky Power (AEP)
- Kentucky Department of Energy Development and Independence (KY-DEDI)
- Electric Power Research Institute (EPRI)
- Duke Energy
A pH stabilization method was investigated to mitigate corrosion in aqueous 5 M monoethanolamine for post-combustion CO2 capture. The room temperature pH of a naturally aerated CO2-loaded solution (i.e., 9.7) was adjusted with NaHCO3 powders to 9.3 and 9.1, and its effect on corrosion of A106 carbon steel was studied. Lower pH initially accelerated corrosion but promoted protective FeCO3 layer formation and subsequently A106 passivation (i.e., Fe3O4 formation). Dissolved oxygen also played a pivotal role by functioning as an additional oxidizer, retarding FeCO3 formation via preferentially oxidizing Fee* to form rust, and promoting passivation of A106 under the FeCO3 layer. (C) 2016 Published by Elsevier Ltd.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据