鼠李糖脂与2,2-二溴-3-次氮基丙酰胺协同抑制X80管线钢的微生物腐蚀

王娅利, 管方, 段继周, 张丽娜, 杨政险, 侯保荣

Synergistic Inhibition of Rhamnolipid and 2, 2-dibromo-3-hypoazopropionamide on Microbiologically Influenced Corrosion of X80 Pipeline Steel

WANG Yali, GUAN Fang, DUAN Jizhou, ZHANG Lina, YANG Zhengxian, HOU Baorong

表1 依据XPS拟合得到的浸泡后X80试片表面腐蚀产物各元素含量 (atomic fraction / %)

Table 1 XPS determined contents of various elements of corrosion products formed on X80 coupons immersed in different media

Conditions C 1s Fe 2p O 1s N 1s S 2p Sterile 42.78 8.40 46.24 1.36 1.22 Sterile + 500 mg/L RL 37.82 13.12 46.62 1.39 1.05 SRB 54.32 3.94 34.18 5.69 1.87 SRB + 500 mg/L RL 54.08 3.60 34.93 3.86 3.53 SRB +150 mg/L DBNPA 54.29 5.33 32.86 6.77 2.75 SRB + 150 mg/L DBNPA+500 mg/L RL 52.38 6.44 32.35 6.13 2.71 SRB + 300 mg/L DBNPA 46.86 7.17 36.47 6.85 2.64