|
|
H2S/CO2 CORROSION OF X60 PIPELINE STEEL IN WET GAS AND SOLUTION |
YANG Jian Wei |
北京科技大学腐蚀与防护中心 |
|
Cite this article:
YANG Jian Wei. H2S/CO2 CORROSION OF X60 PIPELINE STEEL IN WET GAS AND SOLUTION. Acta Metall Sin, 2008, 44(11): 1366-1371 .
|
Abstract Wet gas and solution environments containing H2S/CO2 were simulated in a high temperature and high pressure autoclave. Corrosion behaviors of API-X60 pipeline steel were investigated with Scanning Electron Microscopy (SEM) and X-ray Diffraction methodology (XRD). Effects of high H2S partial pressure on corrosion rate and scale were discussed. The results show that corrosion rate increased with H2S partial pressure in wet gas but raised up first and then dropped down in the solution immersion environment. Pitting corrosion was observed at the situations with H2S partial pressure 2.0MPa. The corrosion process was controlled by H2S and mackinawite (Fe1+XS) was the dominant composition in the corrosion products free of FeCO3. Pitting was occurred in the scale’s defect which was acidified by the HS- and Cl- ions migrating, and the development of the pitting was affected by the electrochemical property of the sulfur-rich phase and FeCl2 admixture. The crystal morphology and structure were more complicated in the scales formed in immersion environment, which were less integrated and bonded than that formed in wet gas. However, hydrogen blistering and hydrogen-induced cracking were more easily occurred for X60 in wet gas than that in immersion environment.
|
Received: 22 February 2008
|
|
[1]Vitse F,Alam K,Gunaltun Y,de Torreben D L,Duchet- Suchaux P.Corrosion 2002,NACE,Paper No.02245, 2002 [2]Chen C F,Lu M X,Zhao G X,Bai Z Q,Yah M L,Yang Y Q.Acta Metall Sin,2003;39:94 (陈长风,路民旭,赵国仙,白真权,严密林,杨延清.金属学报,2003;39:94) [3]Sun W,Nesic S,Papavinasam S.Corrosion 2006,NACE, Paper No.06644,2006 [4]Abayarathna D,Naraghi A,Wang S H.Corrosion 2005, NACE,Paper No.05624,2005 [5]Bai Z Q,Li H L,Liu D X,Wang X F.Mater Prot,2003; 36(4):32 (白真权,李鹤林,刘道新,王献昉.材料保护,2003:36(4):32) [6]Li G M,Liu L W,Zheng J S.J Chin Soc Corros Prot, 2000;20:204 (李国敏,刘烈伟,郑家燊.中国腐蚀与防护学报,2000;20:204) [7]Kvarekval J,Nyborg R,Choi H,Aramco S.Corrosion 2003,NACE,Paper No.03339,2003 [8]Bich N N.Corrosion 2006,NACE,Paper No.06642,2006 [9]Gunaltun Y M,Supriyataman D,Achmad J.Corrosion 1999,NACE,Paper No.36,1999 [10]Jiang F,Dai H Q,CaoX Y,Huang H B.Chem Eng Oil Gas,2005;34:213 (姜放,戴海黔,曹小燕,黄红兵.石油与天然气化工,2005;34:213) [11]Zhang Z,Hinkson D,Singer M,Wang H,Nesic S.Corro- sion 2007,NACE,Paper No.07556,2007 [12]Smith S N,Pacheco J L.Corrosion 2002,NACE,Paper No.02241,2002 [13]Pots B F M,John R C,Rippon I J,Thomas M J J S, Kapusta S D,Girgis M M,Whitham T.Corrosion 2002, NA CE,Paper No.02235,2002 [14]Agrawal A K,Durr C,Koch G H.Corrosion 2004,NACE, Paper No.04383,2004 [15]Wikjord A G,Rummery T E,Doern F E,Owen D G. Corros Sci,1980;20:651 [16]Murowchick,James B,Barnes H L.Am Mineral,1986;71: 1243 [17]Arnold R G.Economic Geology,1969;64:405 [18]Schoonen M A A,Barnes H L.Geochim Cosmochim Acta, 1991;55:1495 [19]Zhang Y,Zhao P.Steel Pipe,2003;32(4):10 (张毅,赵鹏.钢管,2003;32(4):10) [20]Hoffmeister H.Corrosion 2007,NACE,Paper No.07501, 2007 |
No Suggested Reading articles found! |
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
|
Shared |
|
|
|
|
|
Discussed |
|
|
|
|