咪唑啉衍生物在含CO_2的模拟深层气井水溶液中缓蚀机理(英文)

电化学（中英文） ›› 2007, Vol. 13 ›› Issue (3): 242-248.

咪唑啉衍生物在含CO_2的模拟深层气井水溶液中缓蚀机理(英文)

陆原;刘鹤霞;赵景茂;

北京化工大学材料科学与工程学院,北京化工大学材料科学与工程学院,北京化工大学材料科学与工程学院北京100029,北京100029,北京100029

收稿日期:2007-08-28 修回日期:2007-08-28 出版日期:2007-08-28 发布日期:2007-08-28

Inhibition Mechanism of Imidazoline Derivate in Simulated Water from Deep Gaswell Containing CO_2

LU Yuan,LIU He-xia,ZHAO Jing-mao*

(College of Materials Science and Engineering,Beijing University ofChemical Technology,Beijing 100029,China

Received:2007-08-28 Revised:2007-08-28 Published:2007-08-28 Online:2007-08-28

摘要/Abstract

摘要： 应用电化学弱极化法和原子力显微镜(AFM)研究了咪唑啉衍生物类缓蚀剂在模拟深层气井水溶液中对碳钢的二氧化碳腐蚀的抑制效果和缓蚀作用机理.结果表明,在不同的实验温度下,该缓蚀剂均具有较好的缓蚀性能,属于以抑制阳极为主的混合型缓蚀剂.该咪唑啉衍生物在碳钢表面上的吸附遵从Langm iur方程.计算了该腐蚀体系热力学参数(ΔH°、ΔG°和ΔS°)以及腐蚀反应的活化能(Ea)和指前因子(A),并解释了实验结果.

关键词: CO2腐蚀, 缓蚀剂, 咪唑啉衍生物, AFM, Langmiur吸附

Abstract: The electrochemical method and atomic force microscope(AFM) were applied to study the inhibition mechanism of Im-D,an imidazoline derivate inhibitor,for mild steel in CO2 saturated solution.The imidazoline derivate can inhibit effectively CO2 corrosion,make the steel surface smoother and belongs to the anodic controlled mixed-type inhibitor.Its adsorption on the surface of mild steel is a spontaneous and exothermic process accompanied by the decrease of entropy and follows the Langmuir adsorption isothermal equation.The lower temperature will facilitate the process.The changes in the apparent activation energy(Ea) and the pre-exponential factor(A) of the corrosion reaction before and after the addition of inhibitor were also discussed.

Key words: CO2 corrosion, inhibitor, imidazoline derivate, AFM, Langmiur adsorption

中图分类号:

TG174

陆原;刘鹤霞;赵景茂;. 咪唑啉衍生物在含CO_2的模拟深层气井水溶液中缓蚀机理(英文)[J]. 电化学（中英文）, 2007, 13(3): 242-248.

LU Yuan,LIU He-xia,ZHAO Jing-mao*. Inhibition Mechanism of Imidazoline Derivate in Simulated Water from Deep Gaswell Containing CO_2[J]. Journal of Electrochemistry, 2007, 13(3): 242-248.

导出引用管理器 EndNote|Ris|BibTeX

链接本文: https://electrochem.xmu.edu.cn/CN/

https://electrochem.xmu.edu.cn/CN/Y2007/V13/I3/242

参考文献

[1]Durnie W H,Kinsella B J,De Marco R,et al.Astudyof the adsorption properties of commercial carbon dioxidecorrosion inhibitor formulations[J].Journal of AppliedElectrochemistry,2001,31(11):1221-1226. [2]Li G M.Inhition of CO2corrosion of carbon steel by ros-in amide[J].Anti-corrosion,2003,50(6):410-413. [3]Cui Z D,Wu S L,Li C F,et al.Corrosion behavior ofoil tube steels under conditions of multiphase flow satu-rated with super-critical carbon dioxide[J].MaterialsLetters,2004,58(6):1035-1040. [4]Elachouri M,Hajji MS,Salem M,et al.Some nonion-ic surfactants as inhibitors of the corrosion of iron in acidchloride solutions[J].Corrosion,1996,52(2):103-108. [5]Abd-EI-Nabey B A,Khamis E,Ramadan M S,et al.Application of the kinetic-thermodynamic model for inhi-bition of acid corrosion of steel by inhibitors containingsulfur and nitrogen[J].Corrosion,1996,52(9):671-679. [6]Zhao T,Mu G N.The adsorption and corrosion inhibi-tion of anion surfactants on aluminium surface in hydro-chloric acid[J].Corrosion Science,1999,41(10):1937-1944. [7]Omanovic S,Roscoe S G.Effect of linoleate electro-chemical behavior of stainless steel in phosphate buffer[J].Corrosion,2000,56(7):684-693. [8]Free M L.Development and application of useful equa-tions to predict corrosion inhibition by different surfac-tants in various aqueous environments[J].Corrosion,2002,58(12):1025-1030. [9]Mu G N,Li X M,Li F.Synergistic inhibition betweeno-phenanthroline and chloride ion on cold rolled steelcorrosion in phosphoric acid[J].Materials Chemistryand Physics,2004,86(1):59-68. [10]Zhang X Y,Wang F P,He Y F,et al.Study of theinhibition mechanism of imidazoline amide on CO2cor-rosion of armco iron[J].Corrosion Science,2001,43(8):1417-1431. [11]Mu G N,Li X M,Liu G H.Synergistic inhibition be-tween tween60 and NaCl on the corrosion of cold rolledsteel corrosion in 0.5M sulfuric acid[J].CorrosionScience,2005,47(8):1932-1952. [12]Cao C N(曹楚南).Estimation of electrochemical ki-netic parameters of corrosion process by weak polariza-tion curve fitting[J].Journal of Chinese Society ofCorrosion and Protection,1985,5(8):155-164. [13]Cao C N(曹楚南).Corrosion electrochemistry[M].Bejing:Chemical Industry Press,1994:130-133. [14]Sckine I,Hirakawa Y.Effect of 1-hydroxy ethylidene-1,1-diphosphonic acid on the corrosion of SS41 steelin 0.3%sodium chloride solution[J].Corrosion Sci-ence,1986,42(5):272-277. [15]Li X H,Mu G N.Tween-40 as corrosion inhibitor forcold rolled steel in sulphuric acid:weight loss study,electrochemical characterization,and AFM[J].Ap-plied Surface Science,2005,252(5):1254-1265. [16]Tang LB,Mu G N,Liu G H.The effect of neutral redon the corrosion inhibition of cold rolled steel in 1.0Mhydrochloric acid[J].Corrosion Science,2003,45(10):2251-2262. [17]Yu X B,Wu Z,Huang T Z,et al.Effect of carbonaddition on activation and hydrogen sorption character-istics of TiMn1.25Cr0.25alloy[J].Materials Chemistryand Physics,2004,83(2-3):273-277.