Revealing the Mechanism of O<sub>2</sub> and Pressure Effects on the Corrosion of X80 Carbon Steel Under Supercritical CO<sub>2</sub> Conditions

Guanbin Liu; Shuai Wang; Tian Xue; Yu Liu

doi:doi:10.11648/j.jenr.20241302.12

Research Article |

| Peer-Reviewed

Revealing the Mechanism of O₂ and Pressure Effects on the Corrosion of X80 Carbon Steel Under Supercritical CO₂ Conditions

Guanbin Liu

, Shuai Wang

, Tian Xue

, Yu Liu^*

Published in Journal of Energy and Natural Resources (Volume 13, Issue 2)

Received: 24 April 2024 Accepted: 4 June 2024 Published: 13 June 2024

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Abstract

Pipeline transportation is widely used due to its ability to improve the efficiency of CO₂ transportation in Carbon Capture, Utilization, and Storage (CCUS). Within the transport pipelines, CO₂ fluid exists in a supercritical state and often contains various impurity gases such as O₂ and H₂O, which can easily cause steel corrosion, affecting the safety of pipeline operations. In this investigation, we examine the corrosion behavior of X80 carbon steel within a water-saturated supercritical CO₂ environment utilizing weight loss experiments, electrochemical tests, and surface analysis techniques. Furthermore, we explore the impact of pressure and oxygen on the corrosion process of X80 steel. The results indicated that X80 steel underwent severe corrosion under the experimental conditions, with FeCO₃ as the primary corrosion product. Both the introduction of oxygen and an increase in pressure accelerated the steel's corrosion, and the addition of oxygen led to the formation of a new corrosion product, Fe₂O₃. Electrochemical test results showed that changes in pressure did not significantly alter the electrochemical corrosion characteristics of the steel, but the introduction of oxygen decreased the electrochemical reaction resistance of X80 steel. Combined with surface analysis, the following conclusions were drawn: In a 50°C supercritical CO₂ environment, the anode reaction of X80 steel corrosion is the active dissolution of iron, while the cathode reaction involves the dissolution and ionization of CO₂. Changes in pressure do not alter the corrosion mechanism, but the introduction of oxygen leads to oxygen corrosion reactions in the system, accelerating the anode reaction rate and thus increasing the degree of corrosion.

Published in	Journal of Energy and Natural Resources (Volume 13, Issue 2)
DOI	10.11648/j.jenr.20241302.12
Page(s)	59-68
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

CCUS, Pipeline Transportation, Supercritical CO₂, Steel Corrosion, Influence Mechanism

References

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APA Style

Liu, G., Wang, S., Xue, T., Liu, Y. (2024). Revealing the Mechanism of O2 and Pressure Effects on the Corrosion of X80 Carbon Steel Under Supercritical CO2 Conditions. Journal of Energy and Natural Resources, 13(2), 59-68. https://doi.org/10.11648/j.jenr.20241302.12

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ACS Style

Liu, G.; Wang, S.; Xue, T.; Liu, Y. Revealing the Mechanism of O2 and Pressure Effects on the Corrosion of X80 Carbon Steel Under Supercritical CO2 Conditions. J. Energy Nat. Resour. 2024, 13(2), 59-68. doi: 10.11648/j.jenr.20241302.12

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AMA Style

Liu G, Wang S, Xue T, Liu Y. Revealing the Mechanism of O2 and Pressure Effects on the Corrosion of X80 Carbon Steel Under Supercritical CO2 Conditions. J Energy Nat Resour. 2024;13(2):59-68. doi: 10.11648/j.jenr.20241302.12

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@article{10.11648/j.jenr.20241302.12,
  author = {Guanbin Liu and Shuai Wang and Tian Xue and Yu Liu},
  title = {Revealing the Mechanism of O2 and Pressure Effects on the Corrosion of X80 Carbon Steel Under Supercritical CO2 Conditions
},
  journal = {Journal of Energy and Natural Resources},
  volume = {13},
  number = {2},
  pages = {59-68},
  doi = {10.11648/j.jenr.20241302.12},
  url = {https://doi.org/10.11648/j.jenr.20241302.12},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.jenr.20241302.12},
  abstract = {Pipeline transportation is widely used due to its ability to improve the efficiency of CO2 transportation in Carbon Capture, Utilization, and Storage (CCUS). Within the transport pipelines, CO2 fluid exists in a supercritical state and often contains various impurity gases such as O2 and H2O, which can easily cause steel corrosion, affecting the safety of pipeline operations. In this investigation, we examine the corrosion behavior of X80 carbon steel within a water-saturated supercritical CO2 environment utilizing weight loss experiments, electrochemical tests, and surface analysis techniques. Furthermore, we explore the impact of pressure and oxygen on the corrosion process of X80 steel. The results indicated that X80 steel underwent severe corrosion under the experimental conditions, with FeCO3 as the primary corrosion product. Both the introduction of oxygen and an increase in pressure accelerated the steel's corrosion, and the addition of oxygen led to the formation of a new corrosion product, Fe2O3. Electrochemical test results showed that changes in pressure did not significantly alter the electrochemical corrosion characteristics of the steel, but the introduction of oxygen decreased the electrochemical reaction resistance of X80 steel. Combined with surface analysis, the following conclusions were drawn: In a 50°C supercritical CO2 environment, the anode reaction of X80 steel corrosion is the active dissolution of iron, while the cathode reaction involves the dissolution and ionization of CO2. Changes in pressure do not alter the corrosion mechanism, but the introduction of oxygen leads to oxygen corrosion reactions in the system, accelerating the anode reaction rate and thus increasing the degree of corrosion.
},
 year = {2024}
}

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TY  - JOUR
T1  - Revealing the Mechanism of O2 and Pressure Effects on the Corrosion of X80 Carbon Steel Under Supercritical CO2 Conditions

AU  - Guanbin Liu
AU  - Shuai Wang
AU  - Tian Xue
AU  - Yu Liu
Y1  - 2024/06/13
PY  - 2024
N1  - https://doi.org/10.11648/j.jenr.20241302.12
DO  - 10.11648/j.jenr.20241302.12
T2  - Journal of Energy and Natural Resources
JF  - Journal of Energy and Natural Resources
JO  - Journal of Energy and Natural Resources
SP  - 59
EP  - 68
PB  - Science Publishing Group
SN  - 2330-7404
UR  - https://doi.org/10.11648/j.jenr.20241302.12
AB  - Pipeline transportation is widely used due to its ability to improve the efficiency of CO2 transportation in Carbon Capture, Utilization, and Storage (CCUS). Within the transport pipelines, CO2 fluid exists in a supercritical state and often contains various impurity gases such as O2 and H2O, which can easily cause steel corrosion, affecting the safety of pipeline operations. In this investigation, we examine the corrosion behavior of X80 carbon steel within a water-saturated supercritical CO2 environment utilizing weight loss experiments, electrochemical tests, and surface analysis techniques. Furthermore, we explore the impact of pressure and oxygen on the corrosion process of X80 steel. The results indicated that X80 steel underwent severe corrosion under the experimental conditions, with FeCO3 as the primary corrosion product. Both the introduction of oxygen and an increase in pressure accelerated the steel's corrosion, and the addition of oxygen led to the formation of a new corrosion product, Fe2O3. Electrochemical test results showed that changes in pressure did not significantly alter the electrochemical corrosion characteristics of the steel, but the introduction of oxygen decreased the electrochemical reaction resistance of X80 steel. Combined with surface analysis, the following conclusions were drawn: In a 50°C supercritical CO2 environment, the anode reaction of X80 steel corrosion is the active dissolution of iron, while the cathode reaction involves the dissolution and ionization of CO2. Changes in pressure do not alter the corrosion mechanism, but the introduction of oxygen leads to oxygen corrosion reactions in the system, accelerating the anode reaction rate and thus increasing the degree of corrosion.

VL  - 13
IS  - 2
ER  -

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Author Information

Guanbin Liu

School of Energy and Power Engineering, Dalian University of Technology, Dalian, China

Contact Email

http://orcid.org/0009-0004-1603-320X
Shuai Wang

School of Energy and Power Engineering, Dalian University of Technology, Dalian, China

Contact Email

http://orcid.org/0009-0001-6487-751X
Tian Xue

School of Energy and Power Engineering, Dalian University of Technology, Dalian, China

Contact Email

http://orcid.org/0009-0001-5195-2074
Yu Liu

School of Energy and Power Engineering, Dalian University of Technology, Dalian, China

Contact Email

http://orcid.org/0000-0002-6003-9121

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Plain Text BibTeX RIS

APA Style

Liu, G., Wang, S., Xue, T., Liu, Y. (2024). Revealing the Mechanism of O2 and Pressure Effects on the Corrosion of X80 Carbon Steel Under Supercritical CO2 Conditions. Journal of Energy and Natural Resources, 13(2), 59-68. https://doi.org/10.11648/j.jenr.20241302.12

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ACS Style

Liu, G.; Wang, S.; Xue, T.; Liu, Y. Revealing the Mechanism of O2 and Pressure Effects on the Corrosion of X80 Carbon Steel Under Supercritical CO2 Conditions. J. Energy Nat. Resour. 2024, 13(2), 59-68. doi: 10.11648/j.jenr.20241302.12

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AMA Style

Liu G, Wang S, Xue T, Liu Y. Revealing the Mechanism of O2 and Pressure Effects on the Corrosion of X80 Carbon Steel Under Supercritical CO2 Conditions. J Energy Nat Resour. 2024;13(2):59-68. doi: 10.11648/j.jenr.20241302.12

Copy | Download

@article{10.11648/j.jenr.20241302.12,
  author = {Guanbin Liu and Shuai Wang and Tian Xue and Yu Liu},
  title = {Revealing the Mechanism of O2 and Pressure Effects on the Corrosion of X80 Carbon Steel Under Supercritical CO2 Conditions
},
  journal = {Journal of Energy and Natural Resources},
  volume = {13},
  number = {2},
  pages = {59-68},
  doi = {10.11648/j.jenr.20241302.12},
  url = {https://doi.org/10.11648/j.jenr.20241302.12},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.jenr.20241302.12},
  abstract = {Pipeline transportation is widely used due to its ability to improve the efficiency of CO2 transportation in Carbon Capture, Utilization, and Storage (CCUS). Within the transport pipelines, CO2 fluid exists in a supercritical state and often contains various impurity gases such as O2 and H2O, which can easily cause steel corrosion, affecting the safety of pipeline operations. In this investigation, we examine the corrosion behavior of X80 carbon steel within a water-saturated supercritical CO2 environment utilizing weight loss experiments, electrochemical tests, and surface analysis techniques. Furthermore, we explore the impact of pressure and oxygen on the corrosion process of X80 steel. The results indicated that X80 steel underwent severe corrosion under the experimental conditions, with FeCO3 as the primary corrosion product. Both the introduction of oxygen and an increase in pressure accelerated the steel's corrosion, and the addition of oxygen led to the formation of a new corrosion product, Fe2O3. Electrochemical test results showed that changes in pressure did not significantly alter the electrochemical corrosion characteristics of the steel, but the introduction of oxygen decreased the electrochemical reaction resistance of X80 steel. Combined with surface analysis, the following conclusions were drawn: In a 50°C supercritical CO2 environment, the anode reaction of X80 steel corrosion is the active dissolution of iron, while the cathode reaction involves the dissolution and ionization of CO2. Changes in pressure do not alter the corrosion mechanism, but the introduction of oxygen leads to oxygen corrosion reactions in the system, accelerating the anode reaction rate and thus increasing the degree of corrosion.
},
 year = {2024}
}

Copy | Download

TY  - JOUR
T1  - Revealing the Mechanism of O2 and Pressure Effects on the Corrosion of X80 Carbon Steel Under Supercritical CO2 Conditions

AU  - Guanbin Liu
AU  - Shuai Wang
AU  - Tian Xue
AU  - Yu Liu
Y1  - 2024/06/13
PY  - 2024
N1  - https://doi.org/10.11648/j.jenr.20241302.12
DO  - 10.11648/j.jenr.20241302.12
T2  - Journal of Energy and Natural Resources
JF  - Journal of Energy and Natural Resources
JO  - Journal of Energy and Natural Resources
SP  - 59
EP  - 68
PB  - Science Publishing Group
SN  - 2330-7404
UR  - https://doi.org/10.11648/j.jenr.20241302.12
AB  - Pipeline transportation is widely used due to its ability to improve the efficiency of CO2 transportation in Carbon Capture, Utilization, and Storage (CCUS). Within the transport pipelines, CO2 fluid exists in a supercritical state and often contains various impurity gases such as O2 and H2O, which can easily cause steel corrosion, affecting the safety of pipeline operations. In this investigation, we examine the corrosion behavior of X80 carbon steel within a water-saturated supercritical CO2 environment utilizing weight loss experiments, electrochemical tests, and surface analysis techniques. Furthermore, we explore the impact of pressure and oxygen on the corrosion process of X80 steel. The results indicated that X80 steel underwent severe corrosion under the experimental conditions, with FeCO3 as the primary corrosion product. Both the introduction of oxygen and an increase in pressure accelerated the steel's corrosion, and the addition of oxygen led to the formation of a new corrosion product, Fe2O3. Electrochemical test results showed that changes in pressure did not significantly alter the electrochemical corrosion characteristics of the steel, but the introduction of oxygen decreased the electrochemical reaction resistance of X80 steel. Combined with surface analysis, the following conclusions were drawn: In a 50°C supercritical CO2 environment, the anode reaction of X80 steel corrosion is the active dissolution of iron, while the cathode reaction involves the dissolution and ionization of CO2. Changes in pressure do not alter the corrosion mechanism, but the introduction of oxygen leads to oxygen corrosion reactions in the system, accelerating the anode reaction rate and thus increasing the degree of corrosion.

VL  - 13
IS  - 2
ER  -

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