一种咪唑烷硫酮衍生物的缓蚀性能
Inhibition Performance of an Imidazolidinethion Derivative Inhibitor
摘 要
以硫脲、二乙烯三胺和有机羧酸为原料制备一种咪唑烷硫酮衍生物缓蚀剂（CI-R缓蚀剂），采用失重法、极化曲线法、扫描电镜（SEM）观察等方法，研究了缓蚀剂CI-R在85℃、500 μg/g HCl+1% NH4Cl（质量分数，下同）溶液中对碳钢的缓蚀作用及其吸附模型。结果表明：缓蚀剂CI-R是一种混合型缓蚀剂，对试验溶液中的碳钢具有良好的缓蚀作用，加入量为20 μg/g时，缓蚀率可达90.9%；其在碳钢表面的吸附遵循Langmuir吸附等温式，通过在碳钢表面形成一层致密的保护膜，阻碍腐蚀介质与金属基体的接触，抑制了金属的腐蚀。
咪唑烷硫酮衍生物
缓蚀性能
吸附
dew-point corrosion
imidazolidinethion derivative
inhibition performance
adsorption
Abstract
A kind of imidazolidinethion inhibitor (CI-R inhibitor) was synthetised with diethylenetriamine, thiourea and lauric acid as raw materials. Weight loss method, potentiodynamic polarization measurement and scanning electron microscopy (SEM) were used to investigate the inhibition performance of the CI-R inhibitor for carbon steel in 500 μg/g HCl + 1% NH4Cl solution at 85℃. The results showed that the inhibitor CI-R, acting as a mixed-type inhibitor, could inhibit the corrosion of carbon steel in test solution significantly. The inhibition efficiency was up to 90.9% at the concentration of 20 μg/g. Its adsorption on the metal surface obeys Langmuir adsorption isotherm. The inhibitor forms a product film on the metal surface by adsorption, resulting in high protection performance for carbon steel.
中图分类号 TG174.4 DOI 10.11973/fsyfh-201707008
所属栏目 试验研究
基金项目 中石化科研项目（313070）
收稿日期 2015/12/10
修改稿日期
网络出版日期
作者单位点击查看
引用该论文: DUAN Yongfeng,WANG Ning,ZHAO Xiaoyan,YU Fengchang. Inhibition Performance of an Imidazolidinethion Derivative Inhibitor[J]. Corrosion & Protection, 2017, 38(7): 522
共有人对该论文发表了看法，其中：
人认为该论文很差
人认为该论文较差
人认为该论文一般
人认为该论文较好
人认为该论文很好
参考文献
【1】侯芙生. 加工劣质原油对策讨论[J]. 当代石油石化,2007,15(2):1-6.
【2】俞东海,严伟丽. 常减压蒸馏装置的腐蚀与防护[J]. 石油化工腐蚀与防护,2010,27(1):17-20.
【3】MISHAL S A,FAISAL M A,OLAVO C D. Damage mechanism and corrosion control in crude unit overhead line[J]. Hydrocarbon Asia,2003,36(3/4):44-49.
【4】陈洋. 常减装置压塔顶系统腐蚀与控制技术现状[J]. 全面腐蚀控制,2011,25(8):10-13.
【5】段永锋,于凤昌. 原油蒸馏装置塔顶系统腐蚀及缓蚀技术研究进展[J]. 全面腐蚀控制,2014,28(3):15-19.
【6】傅晓萍. 蒸馏装置塔顶缓蚀剂技术现状[J]. 石油化工腐蚀与防护,2005,22(2):15-18.
【7】于凤昌,段永锋,李春贤,等. 一种油溶性缓蚀剂及其制备方法:中国,CN102746839A[P]. 2011-04-22.
【8】段永锋,于凤昌,崔中强,等. 蒸馏装置塔顶系统露点腐蚀与控制[J]. 石油化工腐蚀与防护,2014,31(5):29-33.
【9】BOUKLAH M,HANMOUTI B,LAGRENEE M,et al. Thermodynamic properties of 2,5-bis(4-methoxyphenyl)-1,3,4-oxadiazole as a corrosion inhibitor for mild steel in normal sulfuric acid medium[J]. Corros Sci 2006,48(9):2831-2842.
【10】ABBOUD Y,ABOURRICHE A,SAFFAJ T,et al. 2,3-quinoxalinedione as a novel corrosion inhibitor for mild steel in 1 M HCl[J]. Mater Chem Phys,2007,105(1):1-5.
【11】张大全,高立新,周国定. 国内缓蚀剂研究开发与展望[J]. 腐蚀与防护,2009,30(9):604-610.
【12】LI W,HE Q,PEI C,et al. Experimental and theoretical investigation of the adsorption behaviour of new triazole derivatives as inhibitors for mild steel corrosion in acid media[J]. Electrochimica Acta,2007,52(22):6386-6394.
【2】俞东海,严伟丽. 常减压蒸馏装置的腐蚀与防护[J]. 石油化工腐蚀与防护,2010,27(1):17-20.
【3】MISHAL S A,FAISAL M A,OLAVO C D. Damage mechanism and corrosion control in crude unit overhead line[J]. Hydrocarbon Asia,2003,36(3/4):44-49.
【4】陈洋. 常减装置压塔顶系统腐蚀与控制技术现状[J]. 全面腐蚀控制,2011,25(8):10-13.
【5】段永锋,于凤昌. 原油蒸馏装置塔顶系统腐蚀及缓蚀技术研究进展[J]. 全面腐蚀控制,2014,28(3):15-19.
【6】傅晓萍. 蒸馏装置塔顶缓蚀剂技术现状[J]. 石油化工腐蚀与防护,2005,22(2):15-18.
【7】于凤昌,段永锋,李春贤,等. 一种油溶性缓蚀剂及其制备方法:中国,CN102746839A[P]. 2011-04-22.
【8】段永锋,于凤昌,崔中强,等. 蒸馏装置塔顶系统露点腐蚀与控制[J]. 石油化工腐蚀与防护,2014,31(5):29-33.
【9】BOUKLAH M,HANMOUTI B,LAGRENEE M,et al. Thermodynamic properties of 2,5-bis(4-methoxyphenyl)-1,3,4-oxadiazole as a corrosion inhibitor for mild steel in normal sulfuric acid medium[J]. Corros Sci 2006,48(9):2831-2842.
【10】ABBOUD Y,ABOURRICHE A,SAFFAJ T,et al. 2,3-quinoxalinedione as a novel corrosion inhibitor for mild steel in 1 M HCl[J]. Mater Chem Phys,2007,105(1):1-5.
【11】张大全,高立新,周国定. 国内缓蚀剂研究开发与展望[J]. 腐蚀与防护,2009,30(9):604-610.
【12】LI W,HE Q,PEI C,et al. Experimental and theoretical investigation of the adsorption behaviour of new triazole derivatives as inhibitors for mild steel corrosion in acid media[J]. Electrochimica Acta,2007,52(22):6386-6394.
相关信息
