The effect of volatile organic acids and CO 2 on the corrosion rate of carbon steel from a Top-of-Line-Corrosion (TLC) perspective
Abstract Models for predicting top-of-line corrosion (TLC) rates on carbon steels are important tools for cost-effectively designing and operating natural gas transportation pipelines. The work presented in this paper is aimed to investigate how the corrosion rates on carbon steel is affected by aci...
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crioppubl:10.1088/1757-899x/1201/1/012079 2024-06-02T08:05:12+00:00 The effect of volatile organic acids and CO 2 on the corrosion rate of carbon steel from a Top-of-Line-Corrosion (TLC) perspective Gjertsen, S B Palencsar, A Seiersten, M Hemmingsen, T H 2021 http://dx.doi.org/10.1088/1757-899x/1201/1/012079 https://iopscience.iop.org/article/10.1088/1757-899X/1201/1/012079 https://iopscience.iop.org/article/10.1088/1757-899X/1201/1/012079/pdf unknown IOP Publishing http://creativecommons.org/licenses/by/3.0/ https://iopscience.iop.org/info/page/text-and-data-mining IOP Conference Series: Materials Science and Engineering volume 1201, issue 1, page 012079 ISSN 1757-8981 1757-899X journal-article 2021 crioppubl https://doi.org/10.1088/1757-899x/1201/1/012079 2024-05-07T14:06:31Z Abstract Models for predicting top-of-line corrosion (TLC) rates on carbon steels are important tools for cost-effectively designing and operating natural gas transportation pipelines. The work presented in this paper is aimed to investigate how the corrosion rates on carbon steel is affected by acids typically present in the transported pipeline fluids. This investigation may contribute to the development of improved models. In a series of experiments, the corrosion rate differences for pure CO 2 (carbonic acid) corrosion and pure organic acid corrosion (acetic acid and formic acid) on X65 carbon steel were investigated at starting pH values; 4.5, 5.3, or 6.3. The experiments were conducted in deaerated low-salinity aqueous solutions at atmospheric pressure and temperature of 65 °C. The corrosion rates were evaluated from linear polarization resistance data as well as mass loss and released iron concentration. A correlation between lower pH values and increased corrosion rates was found for the organic acid experiments. However, the pH was not the most critical factor for the rates of carbon steel corrosion in these experiments. The experimental results showed that the type of acid species involved and the concentration of the undissociated acid in the solution influenced the corrosion rates considerably. Article in Journal/Newspaper Carbonic acid IOP Publishing IOP Conference Series: Materials Science and Engineering 1201 1 012079 |
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Abstract Models for predicting top-of-line corrosion (TLC) rates on carbon steels are important tools for cost-effectively designing and operating natural gas transportation pipelines. The work presented in this paper is aimed to investigate how the corrosion rates on carbon steel is affected by acids typically present in the transported pipeline fluids. This investigation may contribute to the development of improved models. In a series of experiments, the corrosion rate differences for pure CO 2 (carbonic acid) corrosion and pure organic acid corrosion (acetic acid and formic acid) on X65 carbon steel were investigated at starting pH values; 4.5, 5.3, or 6.3. The experiments were conducted in deaerated low-salinity aqueous solutions at atmospheric pressure and temperature of 65 °C. The corrosion rates were evaluated from linear polarization resistance data as well as mass loss and released iron concentration. A correlation between lower pH values and increased corrosion rates was found for the organic acid experiments. However, the pH was not the most critical factor for the rates of carbon steel corrosion in these experiments. The experimental results showed that the type of acid species involved and the concentration of the undissociated acid in the solution influenced the corrosion rates considerably. |
format |
Article in Journal/Newspaper |
author |
Gjertsen, S B Palencsar, A Seiersten, M Hemmingsen, T H |
spellingShingle |
Gjertsen, S B Palencsar, A Seiersten, M Hemmingsen, T H The effect of volatile organic acids and CO 2 on the corrosion rate of carbon steel from a Top-of-Line-Corrosion (TLC) perspective |
author_facet |
Gjertsen, S B Palencsar, A Seiersten, M Hemmingsen, T H |
author_sort |
Gjertsen, S B |
title |
The effect of volatile organic acids and CO 2 on the corrosion rate of carbon steel from a Top-of-Line-Corrosion (TLC) perspective |
title_short |
The effect of volatile organic acids and CO 2 on the corrosion rate of carbon steel from a Top-of-Line-Corrosion (TLC) perspective |
title_full |
The effect of volatile organic acids and CO 2 on the corrosion rate of carbon steel from a Top-of-Line-Corrosion (TLC) perspective |
title_fullStr |
The effect of volatile organic acids and CO 2 on the corrosion rate of carbon steel from a Top-of-Line-Corrosion (TLC) perspective |
title_full_unstemmed |
The effect of volatile organic acids and CO 2 on the corrosion rate of carbon steel from a Top-of-Line-Corrosion (TLC) perspective |
title_sort |
effect of volatile organic acids and co 2 on the corrosion rate of carbon steel from a top-of-line-corrosion (tlc) perspective |
publisher |
IOP Publishing |
publishDate |
2021 |
url |
http://dx.doi.org/10.1088/1757-899x/1201/1/012079 https://iopscience.iop.org/article/10.1088/1757-899X/1201/1/012079 https://iopscience.iop.org/article/10.1088/1757-899X/1201/1/012079/pdf |
genre |
Carbonic acid |
genre_facet |
Carbonic acid |
op_source |
IOP Conference Series: Materials Science and Engineering volume 1201, issue 1, page 012079 ISSN 1757-8981 1757-899X |
op_rights |
http://creativecommons.org/licenses/by/3.0/ https://iopscience.iop.org/info/page/text-and-data-mining |
op_doi |
https://doi.org/10.1088/1757-899x/1201/1/012079 |
container_title |
IOP Conference Series: Materials Science and Engineering |
container_volume |
1201 |
container_issue |
1 |
container_start_page |
012079 |
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1800749994878173184 |