在实验室合成咪唑啉缓蚀剂BMIA的基础上, 与效果良好的除氧剂联氨进行复配, 得到新型缓蚀体系BMIA-H。应用高温高压动态挂片法找出缓蚀剂BMIA与除氧剂联氨的最佳配比, 然后采用动电位极化曲线和电化学阻抗谱评价了其对Q235钢的缓蚀性能。结果表明, 缓蚀剂BMIA与除氧剂联氨的最佳配比为2∶3; 按此比例进行复配形成的新型缓蚀体系BMIA-H, 在模拟某油田水中。当其使用质量浓度为500 mg/L时, 缓蚀率能达到98.32%; 动电位极化曲线表明BMIA-H是混合型缓蚀剂。

A kind of imidazoline corrosion inhibitor BMIA was synthesized, and then it was mixed with hydrazine as an excellent deoxidant, and finally a novel corrosion inhibition system BMIA-H was gained.The best ratio of imidazoline corrosion inhibitor to hydrazine was evaluated by dynamic weight loss method.The inhibition performance of BMIA-H was studied by polarization curve measurement and electrochemical impedance spectroscopy. The results reveal that the best ratio of imidazoline BMIA to hydrazine was 2∶3. When the mass concentration of BMIA-H was 500 mg/L, the efficiency could reach 98.32%. BMIA-H is a mixed-type corrosion inhibitor.