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| THE EFFECT OF HYDROPHOBIC GROUP ON THE INHIBITION BEHAVIOR OF IMIDAZOLINE FOR CO2 CORROSION OF N80 IN 3\%NaCl SOLUTION |
| LIU Xia1;2; ZHENG Yugui1 |
1. State Key Laboratory for Corrosion and Protection; Institute of Metal Research; Chinese Academy of Sciences; Shenyang 110016
2. Department of Applied Chemistry; Shenyang Institute of Chemical Technology; Shenyang 110142 |
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Abstract Four kinds of imidazoline inhibitors with different hydrophobic group i.e. 2-heptadecyl-aminoethyl-imidazoline (IM-17), 2-undecyl-aminoethyl-imidazoline (IM-11), 2-nonyl-aminoethyl-imidazoline (IM-9), 2-butyl-aminoethyl-imidazoline (IM-4) had been synthesized and characterized by IR and UV spectra. The inhibition performance of these imidazoline inhibitors for CO2 corrosion of N80 in 3% NaCl solution was investigated through linear polarization resistance, polarization curve and electrochemical impedance spectroscopy under static and flow conditions. The results showed that the inhibition efficiency under static condition decreased in the order of IM-9>IM-4>IM-11>IM-17, i.e. the inhibition efficiency was related with both the solubility and the length of carbon chain of hydrophobic group of imidazolines. In contrast, the inhibition efficiency at 5 m/s decreased in the order of IM-9>IM-1>IM-17>IM-4, and solution flow (5 m/s) dramatically worsened the inhibition performance of imidazolines.
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Received: 06 May 2008
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Corresponding Authors:
Liu Xia
E-mail: ygzheng@imr.ac.cn
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| [1] Wu S L, Cui Z D, He F. Characterization of the surface film formed from carbon dioxide corrosion on N80 steel [J]. Mater.Lett., 2004, 58: 1076-1081
[2] Wu S L, Wu Z D, Cui G X. EIS study of the surface film on the surface of carbon steel from supercritical carbon dioxide corrosion [J] Appl. Surf. Sci., 2004, 228: 17-25
[3] Seala S, Sapre K, Kalea A. Effect of multiphase flow on corrosion of C-steel in presence of inhibitor [J]. Corros. Sci., 2000, 42:1623-1634
[4] Altoe P, Pimenta G, Moulin C F. Evaluation of oilfield corrosion inhibitors in CO2 containing media [J]. Electrochim. Acta,1996, 41 (7-8): 1165-1172
[5] Lo'pez D A, Simison S N, de Sa'nchez S R. The influence of steel microstructure on CO2 corrosion. EIS studies on the inhibition efficiency of benzimidazole [J]. Electrochim. Acta, 2003, 48: 845-854
[6] Cao C. On electrochemical techniques for interface inhibitor research [J]. Corros. Sci., 1996, 38(12): 2073-2082
[7] Ramachandran S, Jovancicevic V. Molecular modeling of the inhibition of mild steel carbon dioxide corrosion by imidazolines [A]. Corrosion /99 [C]. Houston,Texas: NACE, 1999, 17
[8] Edwards A, Osborne C, Webster S, et al. Mechanistic studies of the corrosion inhibitor oleic imidazoline [J]. Corros. Sci., 1993, 36(2): 315-325
[9] Tan Y J, Bailey S, Kinsella B. An investigation of the formation and destruction of corrosion inhibitor films using electrochemical impedance spectroscopy (EIS)[J]. Corros. Sci., 1996,38(9): 1545-1561
[10] Zhang X Y, Ma L M, Du Y L. Inhibition mechanism of imidazoline amide in CO2 solution [J]. Appl. Chem., 1998, 15(6): 21-24
(张学元, 马利民, 杜元龙. 咪唑啉酰胺在含CO2溶液中的缓蚀机理 [J].应用化学, 1998, 15(6): 21-24)
[11] Mar'a L, Valdez R, Villamisar W, et al. Computational simulations of the molecular structure and corrosion properties of amidoethyl, aminoethyl and hydroxyethyl imidazolines inhibitors [J]. Corros. Sci., 2006, 48: 4053-4064
[12] Suzuki K. The study of inhibitor for sour gas service [J]. Corrosion, 1982, 7: 384-389
[13] Ramachandran S. Self-assembled monolayer mechanism for corrosion inhibition of iron by imidazolines [J].Langmuir, 1996, 12(26): 6419-6428
[14] Jovancicevic V, Ramachandran S. Inhibition of carbon dioxidecorrosion of mild steel by imidazolines and their precursors [J].Corrosion, 1999, 55(5): 449-455
[15] Yang H Y, Chen J J, Cao C N. Study on corrosion and inhibition on mechanism in H2S aqueous solutions [J]. J. Chin. Soc.Corros. Prot., 2002, 22(3): 148-152
(杨怀玉，陈家坚，曹楚南. H2S水溶液中的腐蚀与缓蚀作用机理的研究[J]. 中国腐蚀与防护学报，2002, 22(3): 148-152)
[16] Guo X P, Fu C Y．Interaction between inhibitor and CO2corrosion production film [D]．Qingdao：Inhibitor Committee of Chinese Corrosion and Protection, 2001: 7-l2
(郭兴蓬，付朝阳. 缓蚀剂和CO$_2$腐蚀产物膜的相互作用 [D]. 青岛：中国腐蚀与防护学会缓蚀剂专业委员会，2001: 7-12)
[17] Dougherty J A, Stergmann D W. The effects of flow on corrosion inhibitors performance [J]. Mater. Performance, 1996,35(4)：47-53
[18] Liu X W，Peng F M，Zheng J S, et al. Study of inhibitor for pipeline in oilfield [J]. Mater. Prot., 2000, 33(8)：3-5
(刘小武, 彭芳明，郑家燊等. 输油管线缓蚀剂的研究 [J]. 材料保护, 2000, 33(8)：3-5)
[19] Chert Y, Jepson W P. EIS measurement for corrosion monitoring under multiphase flow condition [J]. Electrochim. Acta, 1999, 44：4453-4464
[20] Wang H B，Hong T，Jepson W P. Characterization of inhibitor and corrosion product film using electrochemical impedance spectroscopy(EIS) [A]. Corrosion/2001 [C]. Houston,Texas: NACE, 2001: 23
[21] Smart J S. The meaning of the api-rp-14-e formula for erosion corrosion in oil and gas production [J]. Corrosion, 1991, paper 468
[22] Zhao L, Teng H K, Yang Y S. Corrosion inhibition approach of oil production systems in offshore oilfields [J]. Mater. Corros., 2004,55(9): 684-688
[23] Jiang X, Luo S Z, Zheng Y G. Study on inhibitor properties of quaternary alkynoxymethyl amine and imidazoline for N80 seamless steel in 3\% NaCl saturated by CO2 [J]. J. Chin. Soc. Corros. Prot.,2004, 24(1): 10-15
(蒋秀，骆素珍，郑玉贵. 炔氧甲基季胺盐和咪唑啉对N80在饱和CO2的3\%NaCl溶液中的缓蚀性能研究 [J]. 中国腐蚀与防护学报, 2004, 24(1): 10-15)
[24] Jiang X, Zheng Y G, Ke W. Inhibitor properties of quaternary alkynoxymethyl amine under flowing conditions [J]. J. Chin. Soc. Corros.Prot., 2004, 24(4): 234-239
(蒋秀，郑玉贵，柯伟. 流动条件下炔氧甲基季铵盐的缓蚀性能研究 [J]. 中国腐蚀与防护学报，2004, 24(4): 234-239)
[25] Cao C N. Corrosion Electrochemistry [M]. Beijing: Chemical Industry Press, 1994
(曹楚南. 腐蚀电化学 [M]. 北京：化学工业出版社, 1994 )
[26] Yang H Y, Chen J J. Cao C N. Study on corrosion and inhibition on mechanism in H2S aqueous solutions [J]. J. Chin. Soc. Corros.Prot., 2001，21(6): 321-327
(杨怀玉，陈家坚，曹楚南. H2S溶液中的腐蚀与缓蚀作用机理的研究 [J].中国腐蚀与防护学报，2001，21(6): 321-327) |
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