期刊
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
卷 25, 期 5, 页码 1794-1801出版社
SPRINGER
DOI: 10.1007/s11665-016-2017-4
关键词
acid corrosion; amine; carbon steel; polarization
The effect of temperature and H2S concentration on amine corrosion of API 5L X52 carbon steel in a CO2-saturated 25 wt.% diethanolamine solution was investigated via electrochemical techniques. It was found that increase in temperature from 25 to 80 A degrees C resulted in severe increase in corrosion rate from 0.88 to 16.24 mpy due to increase in degradation rate of amine. Also, it was concluded that increase in H2S concentration led to increase in corrosion rate because of formation of more heat stable amine salts. The effect of temperature on corrosion rate was more significant than acid gas loading.
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