In situ characterization of naphthenic corrosion of API 5L X70 steel at room temperature

被引：8

作者：

Rios, Emerson C. ^{[1
]}

Oliveira, Aloadir L. ^{[1
]}

Zimer, Alexsandro M. ^{[1
]}

Freitas, Renato G. ^{[1
,2
]}

Matos, Roberto ^{[1
,3
]}

Pereira, Ernesto C. ^{[1
]}

Mascaro, Lucia H. ^{[1
]}

机构：

[1] Univ Fed Sao Carlos, Dept Chem, Lab Interdisciplinar Eletroquim & Ceram, BR-13565905 Sao Carlos, SP, Brazil

[2] Univ Fed Mato Grosso, Dept Chem, Grp Eletroquim & Novos Mat GENMAT, BR-78060900 Cuiaba, MT, Brazil

[3] Univ Estadual Londrina, Dept Chem, BR-86057970 Londrina, PR, Brazil

来源：

FUEL | 2016年 / 184卷

基金：

巴西圣保罗研究基金会;

关键词：

Naphthenic corrosion; Crude oil; Electrochemical noise; In situ FTIR; In situ AFM; AISI; 1020; STEEL; ELECTROCHEMICAL NOISE; ACID CORROSION; PITTING CORROSION; STAINLESS-STEEL; CHLORIDE-IONS; CARBON-STEEL; OIL; INITIATION; TRANSFORM;

D O I：

10.1016/j.fuel.2016.07.068

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Different in situ coupled techniques were used to characterize the naphthenic corrosion of API 5L X70 steel at room temperature. In situ optical microscopy coupled with an electrochemical noise technique indicated a general corrosion process. In situ AFM images showed the early formation of the corrosion product with a thickness of 600 nm after 90 min of immersion. The main regions observed in the temporal evolution of FTIR spectra are evidence of the formation of an iron naphthenate film even at room temperature. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：648 / 655

页数：8

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