CO2 loading-dependent corrosion of carbon steel and formation of corrosion products in anoxic 30 wt.% monoethanolamine-based solutions

Liangfu Zheng; Naser S. Matin; James Landon; Gerald A. Thomas; Kunlei Liu

doi:10.1016/j.corsci.2015.09.015

CO₂ loading-dependent corrosion of carbon steel and formation of corrosion products in anoxic 30 wt.% monoethanolamine-based solutions

Liangfu Zheng, Naser S. Matin, James Landon, Gerald A. Thomas, Kunlei Liu

Mechanical and Aerospace Engineering

Research output: Contribution to journal › Article › peer-review

44 Scopus citations

Abstract

Corrosion of A106 carbon steel in anoxic CO₂-loaded 30 wt.% monoethanolamine-based solutions (a corrosive solvent for post-combustion CO₂ capture) with CO₂ loadings ranging from 0.24 to 0.53 mol CO₂/mol amine is investigated. The results show that corrosion and formation of a protective layer of corrosion products on the A106 surface are strongly CO₂ loading-dependent. That is, initial corrosion is accelerated with increased CO₂ loading. However, the formation of chukanovite and subsequently siderite, which dramatically inhibits the corrosion, was promoted with increasing CO₂ loading. Chukanovite is a metastable intermediate corrosion product which transforms into siderite. Possible mechanisms are discussed.

Original language	English
Pages (from-to)	44-54
Number of pages	11
Journal	Corrosion Science
Volume	102
DOIs	https://doi.org/10.1016/j.corsci.2015.09.015
State	Published - Jan 1 2016

Bibliographical note

Publisher Copyright:
© 2015 Elsevier Ltd.

Funding

The authors acknowledge the Carbon Management Research Group (CMRG) members , including Duke Energy , Electric Power Research Institute (EPRI) , Kentucky Department of Energy Development and Independence (KY-DEDI) , Kentucky Power (AEP) , and LG&E and KU Energy , for their financial support. Also, the authors acknowledge Jianliang Xu for his help in the drawing for Fig. 1 , Nicolas E. Holubowitch for his help in discussion and English correction, and Allen Flath and Aleczander Serna for their help in liquid analysis.

Funders	Funder number
KU Energy LLC
Kentucky Department for Energy Development and Independence
East Kentucky Power Cooperative
Duke Energy
Electric Power Research Institute
American Electric Power

Keywords

A. Carbon steel
B. ICP-OES
B. SEM
B. Weight loss
B. XRD
C. Alkaline corrosion

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering
General Materials Science

Access to Document

10.1016/j.corsci.2015.09.015

Cite this

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title = "CO2 loading-dependent corrosion of carbon steel and formation of corrosion products in anoxic 30 wt.% monoethanolamine-based solutions",

abstract = "Corrosion of A106 carbon steel in anoxic CO2-loaded 30 wt.% monoethanolamine-based solutions (a corrosive solvent for post-combustion CO2 capture) with CO2 loadings ranging from 0.24 to 0.53 mol CO2/mol amine is investigated. The results show that corrosion and formation of a protective layer of corrosion products on the A106 surface are strongly CO2 loading-dependent. That is, initial corrosion is accelerated with increased CO2 loading. However, the formation of chukanovite and subsequently siderite, which dramatically inhibits the corrosion, was promoted with increasing CO2 loading. Chukanovite is a metastable intermediate corrosion product which transforms into siderite. Possible mechanisms are discussed.",

keywords = "A. Carbon steel, B. ICP-OES, B. SEM, B. Weight loss, B. XRD, C. Alkaline corrosion",

author = "Liangfu Zheng and Matin, {Naser S.} and James Landon and Thomas, {Gerald A.} and Kunlei Liu",

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doi = "10.1016/j.corsci.2015.09.015",

language = "English",

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T1 - CO2 loading-dependent corrosion of carbon steel and formation of corrosion products in anoxic 30 wt.% monoethanolamine-based solutions

AU - Zheng, Liangfu

AU - Matin, Naser S.

AU - Landon, James

AU - Thomas, Gerald A.

AU - Liu, Kunlei

PY - 2016/1/1

Y1 - 2016/1/1

N2 - Corrosion of A106 carbon steel in anoxic CO2-loaded 30 wt.% monoethanolamine-based solutions (a corrosive solvent for post-combustion CO2 capture) with CO2 loadings ranging from 0.24 to 0.53 mol CO2/mol amine is investigated. The results show that corrosion and formation of a protective layer of corrosion products on the A106 surface are strongly CO2 loading-dependent. That is, initial corrosion is accelerated with increased CO2 loading. However, the formation of chukanovite and subsequently siderite, which dramatically inhibits the corrosion, was promoted with increasing CO2 loading. Chukanovite is a metastable intermediate corrosion product which transforms into siderite. Possible mechanisms are discussed.

AB - Corrosion of A106 carbon steel in anoxic CO2-loaded 30 wt.% monoethanolamine-based solutions (a corrosive solvent for post-combustion CO2 capture) with CO2 loadings ranging from 0.24 to 0.53 mol CO2/mol amine is investigated. The results show that corrosion and formation of a protective layer of corrosion products on the A106 surface are strongly CO2 loading-dependent. That is, initial corrosion is accelerated with increased CO2 loading. However, the formation of chukanovite and subsequently siderite, which dramatically inhibits the corrosion, was promoted with increasing CO2 loading. Chukanovite is a metastable intermediate corrosion product which transforms into siderite. Possible mechanisms are discussed.

KW - A. Carbon steel

KW - B. ICP-OES

KW - B. SEM

KW - B. Weight loss

KW - B. XRD

KW - C. Alkaline corrosion

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