CO2和SRB共存产出水中咪唑啉衍生物的环境行为及缓蚀长效性研究

张帆, 刘宏伟, 陈碧, 刘宏芳

Corrosion Inhibition of Imidazoline for Carbon Steel in CO2-saturated Artificial Sewages with Sulfate Reduction Bacteria

ZHANG Fan, LIU Hongwei, CHEN Bi, LIU Hongfang

表1 含饱和CO2和SRB模拟污水中不同浓度咪唑啉条件下20#碳钢EIS拟合所得电化学参数

Table 1 EIS fitting results of 20 # carbon steel in simulating water containing CO2-saturated and SRB with different concentrations of imidazoline

C / mgL-1 Rs / Ωcm2 Cf / 10-4 Fcm-2 Cf -n Rf / Ωcm2 Cdl / 10-4 Fcm-2 Cdl-n Rt / Ωcm2 0 13.2 39.2 0.953 6.28 41.9 0.628 801 10 15.3 36.9 0.834 162 40.5 0.720 1051 20 17.3 28.9 0.782 918 26.0 0.760 1506 50 12.5 5.14 0.624 2274 17.0 0.845 5395 100 12.6 3.24 0.590 2504 8.91 0.95 41556