Alteration of Wettability of Corroding Carbon Steel Surface by Carbon Dioxide Corrosion Inhibitors-Effect on Carbon Dioxide Corrosion Rate and Contact Angle

被引：19

作者：

Foss, M. ^{[1
]}

Gulbrandsen, E. ^{[2
]}

Sjoeblom, J. ^{[1
]}

机构：

[1] Inst Energy Technol, Mat & Corros Technol Dept, NO-2027 Kjeller, Norway

[2] Norwegian Univ Sci & Technol, Dept Chem Engn, NO-7051 Trondheim, Norway

来源：

CORROSION | 2008年 / 64卷 / 12期

关键词：

carbon dioxide corrosion; corrosion inhibition; contact angle; cetytrimethylammonium bromide; oleic imidazoline salt; phosphate ester;

D O I：

10.5006/1.3294406

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The wettability of the steel surface is an important factor co-determining the risk of corrosion in multiphase pipelines for transportation of oil and gas. The effect of carbon dioxide (CO2) corrosion inhibitors on the wettability of carbon steel was investigated in the present paper. Also investigated was the effect of oil on the performance of these inhibitors. Three inhibitors were investigated. Two of them were commercial inhibitor-based chemicals: an oleic imidazoline salt (OI) and a phosphate ester (PE). The third was cetyltrimethylammonium bromide (CTAB). a well-characterized quaternary ammonium compound. A refined, low-aromatic oil product was used in the tests. The wettability of the corroding carbon steel surface was studied by contact angle measurements (25 degrees C, 1 bar CO2, 3 wt% sodium chloride [NaCl]). Both oil-in-water and water-in-oil experiments were performed. The effect of the inhibitor/oil interactions were also studied in CO2 corrosion tests where the steel specimens were alternately exposed to oil and the aqueous phase. The performance of OI and PE was significantly improved by the presence of oil. These inhibitors also enhanced the oil wettability of the steel surface, while CTAB enhanced the water wettability.

引用

页码：905 / 919

页数：15

共 39 条

[21] DETERMINATION OF CORROSION RATES BY ELECTROCHEMICAL DC AND AC METHODS [J].

LORENZ, WJ ;

MANSFELD, F .

CORROSION SCIENCE, 1981, 21 (9-10) :647-672

[22] ACCELERATED CORROSION OF STEEL BY SUSPENDED IRON SULFIDES IN BRINE [J].

MARTIN, RL ;

ANNAND, RR .

CORROSION, 1981, 37 (05) :297-301

[23]

MARTIN RL, 1983, MATER PERFORMANCE, V22, P33

[24] THE MECHANISM OF ACTION OF AN OLEIC IMIDAZOLINE BASED CORROSION-INHIBITOR FOR OIL-FIELD USE [J].

MCMAHON, AJ .

COLLOIDS AND SURFACES, 1991, 59 :187-208

[25] A molecular picture of hydrophilic and hydrophobic interactions from ab initio density functional theory calculations [J].

Meng, S ;

Wang, EG ;

Gao, SW .

JOURNAL OF CHEMICAL PHYSICS, 2003, 119 (15) :7617-7620

[26]

MOON T, 2002, 298 NACE INT

[27] An electrochemical model for prediction of corrosion of mild steel in aqueous carbon dioxide solutions [J].

Nesic, S ;

Postlethwaite, J ;

Olsen, S .

CORROSION, 1996, 52 (04) :280-294

[28] Self-assembled monolayer mechanism for corrosion inhibition of iron by imidazolines [J].

Ramachandran, S ;

Tsai, BL ;

Blanco, M ;

Chen, H ;

Tang, YC ;

Goddard, WA .

LANGMUIR, 1996, 12 (26) :6419-6428

[29]

ROZENFIELD IL, 1981, CORROSION INHIBITORS, P67

[30]

SCHMIDT JL, 1994, BACTERIES LACTIQUES, V2, P37

← 1 2 3 4 →