Neutralizing amines effect on corrosion process of carbon steel exposed in acid sour media

L. Quej-Aké, R. Cabrera-Sierra, E. Arce-Estrada, J. Marín-Cruz

Research output: Contribution to conferencePaper

1 Citation (Scopus)

Abstract

To control the corrosion process in primary distillation towers by the influence of acid sour media (HCl+H2S), neutralizing compounds are widely used in oilfield. Amines typically used are Monoethanol Amine (MEA), Ethylenediamine (E), Ethylenediamine at 60% (E60) and 2-ethylhexillamine (2-EH), being the first one the most used. In this work Electrochemical Impedance Spectroscopy (EIS) technique is used to study the amines concentration effect on carbon steel corrosion process in sour solution (0.5 M HCl + 500 ppm of H 2S at 40°C, pH 2). The quantitative analysis of EIS diagrams showed an active behavior of the interface without amine. Furthermore, metal activity increases in presence of MEA and E. However, at different dosages (5, 15 and 30 ppm) both E60 and 2-EH amines, exhibit a positive effect to control corrosion. Finally, EIS analysis is supported by scanning electron microscopy (SEM) characterization. ©The Electrochemical Society.
Original languageAmerican English
Pages203-213
Number of pages11
DOIs
StatePublished - 1 Jan 2008
EventECS Transactions -
Duration: 1 Jan 2008 → …

Conference

ConferenceECS Transactions
Period1/01/08 → …

Fingerprint

ethylenediamine
Amines
Carbon steel
Corrosion
Acids
Electrochemical impedance spectroscopy
Steel corrosion
Distillation
Towers
Metals
Scanning electron microscopy
Chemical analysis

Cite this

@conference{e95e704105054617823392caea81a42f,
title = "Neutralizing amines effect on corrosion process of carbon steel exposed in acid sour media",
abstract = "To control the corrosion process in primary distillation towers by the influence of acid sour media (HCl+H2S), neutralizing compounds are widely used in oilfield. Amines typically used are Monoethanol Amine (MEA), Ethylenediamine (E), Ethylenediamine at 60{\%} (E60) and 2-ethylhexillamine (2-EH), being the first one the most used. In this work Electrochemical Impedance Spectroscopy (EIS) technique is used to study the amines concentration effect on carbon steel corrosion process in sour solution (0.5 M HCl + 500 ppm of H 2S at 40°C, pH 2). The quantitative analysis of EIS diagrams showed an active behavior of the interface without amine. Furthermore, metal activity increases in presence of MEA and E. However, at different dosages (5, 15 and 30 ppm) both E60 and 2-EH amines, exhibit a positive effect to control corrosion. Finally, EIS analysis is supported by scanning electron microscopy (SEM) characterization. {\circledC}The Electrochemical Society.",
author = "L. Quej-Ak{\'e} and R. Cabrera-Sierra and E. Arce-Estrada and J. Mar{\'i}n-Cruz",
year = "2008",
month = "1",
day = "1",
doi = "10.1149/1.3046634",
language = "American English",
pages = "203--213",
note = "ECS Transactions ; Conference date: 01-01-2008",

}

Neutralizing amines effect on corrosion process of carbon steel exposed in acid sour media. / Quej-Aké, L.; Cabrera-Sierra, R.; Arce-Estrada, E.; Marín-Cruz, J.

2008. 203-213 Paper presented at ECS Transactions, .

Research output: Contribution to conferencePaper

TY - CONF

T1 - Neutralizing amines effect on corrosion process of carbon steel exposed in acid sour media

AU - Quej-Aké, L.

AU - Cabrera-Sierra, R.

AU - Arce-Estrada, E.

AU - Marín-Cruz, J.

PY - 2008/1/1

Y1 - 2008/1/1

N2 - To control the corrosion process in primary distillation towers by the influence of acid sour media (HCl+H2S), neutralizing compounds are widely used in oilfield. Amines typically used are Monoethanol Amine (MEA), Ethylenediamine (E), Ethylenediamine at 60% (E60) and 2-ethylhexillamine (2-EH), being the first one the most used. In this work Electrochemical Impedance Spectroscopy (EIS) technique is used to study the amines concentration effect on carbon steel corrosion process in sour solution (0.5 M HCl + 500 ppm of H 2S at 40°C, pH 2). The quantitative analysis of EIS diagrams showed an active behavior of the interface without amine. Furthermore, metal activity increases in presence of MEA and E. However, at different dosages (5, 15 and 30 ppm) both E60 and 2-EH amines, exhibit a positive effect to control corrosion. Finally, EIS analysis is supported by scanning electron microscopy (SEM) characterization. ©The Electrochemical Society.

AB - To control the corrosion process in primary distillation towers by the influence of acid sour media (HCl+H2S), neutralizing compounds are widely used in oilfield. Amines typically used are Monoethanol Amine (MEA), Ethylenediamine (E), Ethylenediamine at 60% (E60) and 2-ethylhexillamine (2-EH), being the first one the most used. In this work Electrochemical Impedance Spectroscopy (EIS) technique is used to study the amines concentration effect on carbon steel corrosion process in sour solution (0.5 M HCl + 500 ppm of H 2S at 40°C, pH 2). The quantitative analysis of EIS diagrams showed an active behavior of the interface without amine. Furthermore, metal activity increases in presence of MEA and E. However, at different dosages (5, 15 and 30 ppm) both E60 and 2-EH amines, exhibit a positive effect to control corrosion. Finally, EIS analysis is supported by scanning electron microscopy (SEM) characterization. ©The Electrochemical Society.

U2 - 10.1149/1.3046634

DO - 10.1149/1.3046634

M3 - Paper

SP - 203

EP - 213

ER -