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Bio-corrosion of Carbon Steel by Sulfate Reducing Bacteria Consortium In Oil and Gas Pipelines

This research is aimed to give an overview of the impact of bio-corrosion on carbon steel grade API 5L X-70 immersed in growth medium and exposed to SRB consortium. Simulation of anaerobic corrosion conditions was carried out in a laboratory for 28 days. Raw crude oil gathered from the Baram Delta O...

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Main Authors: A., Abu Bakar, M. K. F., Mohd Ali, N., Md Noor, N., Yahaya, M., Ismail, Arman, Abdullah
Format: Article
Language:English
Published: Faculty Mechanical Engineering, UMP 2017
Subjects:
TP Chemical technology
Online Access:http://umpir.ump.edu.my/id/eprint/20000/1/Bio-corrosion%20of%20Carbon%20Steel%20by%20Sulfate%20Reducing%20Bacteria%20Consortium%20In%20Oil%20and%20Gas%20Pipelines.pdf
http://umpir.ump.edu.my/id/eprint/20000/
https://doi.org/10.15282/jmes.11.2.2017.3.0237
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spelling my.ump.umpir.200002018-02-12T07:54:01Z http://umpir.ump.edu.my/id/eprint/20000/ Bio-corrosion of Carbon Steel by Sulfate Reducing Bacteria Consortium In Oil and Gas Pipelines A., Abu Bakar M. K. F., Mohd Ali N., Md Noor N., Yahaya M., Ismail Arman, Abdullah TP Chemical technology This research is aimed to give an overview of the impact of bio-corrosion on carbon steel grade API 5L X-70 immersed in growth medium and exposed to SRB consortium. Simulation of anaerobic corrosion conditions was carried out in a laboratory for 28 days. Raw crude oil gathered from the Baram Delta Operation Terminal was cultured in broth number 1249 (Modified Barr’s Medium) to study the effect of bacteria growth upon metal loss. Carbon steel coupons grade X70 were cut to approximately 10mm x 20mm x 5mm and immersed in the cultured broth. During the experiment, the planktonic SRB were enumerated using a counting chamber (direct cell count method) under the electronic microscope at 200x magnification. Results indicated that the optimum pH and temperature for the respected SRB consortium genes were 8.5 and 37 °C, respectively. Metal loss of the corrosion specimen was measured and recorded after retrieval from the immersion period in the medium on a weekly basis prior to SRB inoculation for further analysis. The metal loss values supported that SRB activity can increase the metal loss of carbon steel against time of exposure. Additionally, the FESEM image showed the biofilm formations on the corrosion specimen. Thus, the results could conclude that biocorrosion caused by particular local SRB consortium can be considered as a threat to carbon steel pipelines. Besides, the effect of SRB activity and response towards metallic materials in a dynamic environment is an interesting topic to be studied upon in the future. Faculty Mechanical Engineering, UMP 2017 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/20000/1/Bio-corrosion%20of%20Carbon%20Steel%20by%20Sulfate%20Reducing%20Bacteria%20Consortium%20In%20Oil%20and%20Gas%20Pipelines.pdf A., Abu Bakar and M. K. F., Mohd Ali and N., Md Noor and N., Yahaya and M., Ismail and Arman, Abdullah (2017) Bio-corrosion of Carbon Steel by Sulfate Reducing Bacteria Consortium In Oil and Gas Pipelines. Journal of Mechanical Engineering and Sciences (JMES) , 11 (2). pp. 2592-2600. ISSN 2289-4659 (print); 2231-8380 (online) https://doi.org/10.15282/jmes.11.2.2017.3.0237 DOI: https://doi.org/10.15282/jmes.11.2.2017.3.0237
institution Universiti Malaysia Pahang
building UMP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Pahang
content_source UMP Institutional Repository
url_provider http://umpir.ump.edu.my/
language English
topic TP Chemical technology
spellingShingle TP Chemical technology
A., Abu Bakar
M. K. F., Mohd Ali
N., Md Noor
N., Yahaya
M., Ismail
Arman, Abdullah
Bio-corrosion of Carbon Steel by Sulfate Reducing Bacteria Consortium In Oil and Gas Pipelines
description This research is aimed to give an overview of the impact of bio-corrosion on carbon steel grade API 5L X-70 immersed in growth medium and exposed to SRB consortium. Simulation of anaerobic corrosion conditions was carried out in a laboratory for 28 days. Raw crude oil gathered from the Baram Delta Operation Terminal was cultured in broth number 1249 (Modified Barr’s Medium) to study the effect of bacteria growth upon metal loss. Carbon steel coupons grade X70 were cut to approximately 10mm x 20mm x 5mm and immersed in the cultured broth. During the experiment, the planktonic SRB were enumerated using a counting chamber (direct cell count method) under the electronic microscope at 200x magnification. Results indicated that the optimum pH and temperature for the respected SRB consortium genes were 8.5 and 37 °C, respectively. Metal loss of the corrosion specimen was measured and recorded after retrieval from the immersion period in the medium on a weekly basis prior to SRB inoculation for further analysis. The metal loss values supported that SRB activity can increase the metal loss of carbon steel against time of exposure. Additionally, the FESEM image showed the biofilm formations on the corrosion specimen. Thus, the results could conclude that biocorrosion caused by particular local SRB consortium can be considered as a threat to carbon steel pipelines. Besides, the effect of SRB activity and response towards metallic materials in a dynamic environment is an interesting topic to be studied upon in the future.
format Article
author A., Abu Bakar
M. K. F., Mohd Ali
N., Md Noor
N., Yahaya
M., Ismail
Arman, Abdullah
author_facet A., Abu Bakar
M. K. F., Mohd Ali
N., Md Noor
N., Yahaya
M., Ismail
Arman, Abdullah
author_sort A., Abu Bakar
title Bio-corrosion of Carbon Steel by Sulfate Reducing Bacteria Consortium In Oil and Gas Pipelines
title_short Bio-corrosion of Carbon Steel by Sulfate Reducing Bacteria Consortium In Oil and Gas Pipelines
title_full Bio-corrosion of Carbon Steel by Sulfate Reducing Bacteria Consortium In Oil and Gas Pipelines
title_fullStr Bio-corrosion of Carbon Steel by Sulfate Reducing Bacteria Consortium In Oil and Gas Pipelines
title_full_unstemmed Bio-corrosion of Carbon Steel by Sulfate Reducing Bacteria Consortium In Oil and Gas Pipelines
title_sort bio-corrosion of carbon steel by sulfate reducing bacteria consortium in oil and gas pipelines
publisher Faculty Mechanical Engineering, UMP
publishDate 2017
url http://umpir.ump.edu.my/id/eprint/20000/1/Bio-corrosion%20of%20Carbon%20Steel%20by%20Sulfate%20Reducing%20Bacteria%20Consortium%20In%20Oil%20and%20Gas%20Pipelines.pdf
http://umpir.ump.edu.my/id/eprint/20000/
https://doi.org/10.15282/jmes.11.2.2017.3.0237
_version_ 1643668772403281920
score 13.211869

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