Iron Corrosion in CO2/Brine at Low H2S Concentrations: An Electrochemical and Surface Science Study
作者： E. Abelev , T. A. Ramanarayanan , S. L. Bernasek
DOI: 10.1149/1.3160373
关键词:
摘要: The effect of H 2 S at the parts per million level on early stage iron corrosion in 3 wt % NaCl solutions saturated with CO is investigated using electrochemical and surface science techniques. Small concentrations (5 ppm) have an inhibiting presence . At higher (up to 500 ppm), rate but below S-free case. characterization surfaces after uses photoelectron spectroscopy electron microscopy. For Fe exposed S-containing solutions, a sulfur peak (S 2p) appears binding energy 162.1 eV, attributable disulfide 2- ) adsorption. P3/2 attributed Fe(II) shifts by about 1 eV 5 ppm compared case due bonding O. concentrations, formation S-rich indicated. Morphological changes are observed exposure solutions. A thin protective film forms S, while thicker, more porous phase forms. mechanism for inhibition different /brine proposed.
ecsdl.org 参考文章(44)
D.A López, W.H Schreiner, S.R de Sánchez, S.N Simison, The influence of inhibitors molecular structure and steel microstructure on corrosion layers in CO2 corrosion. An XPS and SEM characterization Applied Surface Science. ,vol. 236, pp. 77- 97 ,(2004) , 10.1016/J.APSUSC.2004.03.247
M. P. Seah, I. S. Gilmore, G. Beamson, XPS: binding energy calibration of electron spectrometers 5—re‐evaluation of the reference energies Surface and Interface Analysis. ,vol. 26, pp. 642- 649 ,(1998) , 10.1002/(SICI)1096-9918(199808)26:9<642::AID-SIA408>3.0.CO;2-3
J. Titz, G. H. Wagner, H. Spähn, M. Ebert, K. Jüttner, W. J. Lorenz, Characterization of Organic Coatings on Metal Substrates by Electrochemical Impedance Spectroscopy Corrosion. ,vol. 46, pp. 221- 229 ,(1990) , 10.5006/1.3585095
Houyi Ma, Xiaoliang Cheng, Guiqiu Li, Shenhao Chen, Zhenlan Quan, Shiyong Zhao, Lin Niu, The influence of hydrogen sulfide on corrosion of iron under different conditions Corrosion Science. ,vol. 42, pp. 1669- 1683 ,(2000) , 10.1016/S0010-938X(00)00003-2
J. L. Crolet, M. R. Bonis, pH Measurements in Aqueous CO2Solutions under High Pressure and Temperature CORROSION. ,vol. 39, pp. 39- 46 ,(1983) , 10.5006/1.3580813
C. DE WAARD, D. E. MILLIAMS, Carbonic Acid Corrosion of Steel Corrosion. ,vol. 31, pp. 177- 181 ,(1975) , 10.5006/0010-9312-31.5.177
C.R Brundle, T.J Chuang, K Wandelt, Core and valence level photoemission studies of iron oxide surfaces and the oxidation of iron Surface Science. ,vol. 68, pp. 459- 468 ,(1977) , 10.1016/0039-6028(77)90239-4
M.B. Kermani, D. Harrop, The impact of corrosion on the oil and gas industry Spe Production & Facilities. ,vol. 11, pp. 186- 190 ,(1996) , 10.2118/29784-PA
D. A. Shirley, High-Resolution X-Ray Photoemission Spectrum of the Valence Bands of Gold Physical Review B. ,vol. 5, pp. 4709- 4714 ,(1972) , 10.1103/PHYSREVB.5.4709
E Sosa, Roman Cabrera-Sierra, Marina E Rincón, MT Oropeza, I González, None, Evolution of non-stoichiometric iron sulfide film formed by electrochemical oxidation of carbon steel in alkaline sour environment Electrochimica Acta. ,vol. 47, pp. 1197- 1208 ,(2002) , 10.1016/S0013-4686(01)00851-9