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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| Format: | Article |
| Language: | English |
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Universiti Malaysia Pahang Publishing
2017-06-01
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| Series: | Journal of Mechanical Engineering and Sciences |
| Subjects: | |
| Online Access: | https://journal.ump.edu.my/jmes/article/view/8131 |
| _version_ | 1797694697948315648 |
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| author | A. Abu Bakar M. K. F. Mohd Ali N. Md Noor N. Yahaya M. Ismail A. Abdullah |
| author_facet | A. Abu Bakar M. K. F. Mohd Ali N. Md Noor N. Yahaya M. Ismail A. Abdullah |
| author_sort | A. Abu Bakar |
| collection | DOAJ |
| 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. |
| first_indexed | 2024-03-12T03:01:35Z |
| format | Article |
| id | doaj.art-e6cafbd69da54d9bbfd347110795fe78 |
| institution | Directory Open Access Journal |
| issn | 2289-4659 2231-8380 |
| language | English |
| last_indexed | 2024-03-12T03:01:35Z |
| publishDate | 2017-06-01 |
| publisher | Universiti Malaysia Pahang Publishing |
| record_format | Article |
| series | Journal of Mechanical Engineering and Sciences |
| spelling | doaj.art-e6cafbd69da54d9bbfd347110795fe782023-09-03T14:43:50ZengUniversiti Malaysia Pahang PublishingJournal of Mechanical Engineering and Sciences2289-46592231-83802017-06-011122592260010.15282/jmes.11.2.2017.3.0237Bio-corrosion of carbon steel by sulfate reducing bacteria consortium in oil and gas pipelinesA. Abu Bakar0M. K. F. Mohd Ali1N. Md Noor2N. Yahaya3M. Ismail4A. Abdullah5Faculty of Civil Engineering, Universiti Teknologi Malaysia, 81310 , Skudai, Johor, MalaysiaFaculty of Civil Engineering, Universiti Teknologi Malaysia, 81310 , Skudai, Johor, MalaysiaFaculty of Civil Engineering, Universiti Teknologi Malaysia, 81310 , Skudai, Johor, MalaysiaFaculty of Civil Engineering, Universiti Teknologi Malaysia, 81310 , Skudai, Johor, MalaysiaFaculty of Civil Engineering, Universiti Teknologi Malaysia, 81310 , Skudai, Johor, MalaysiaFaculty of Chemical Engineering & Natural Resources, Universiti Malaysia Pahang, 26300 Gambang, Pahang, MalaysiaThis 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.https://journal.ump.edu.my/jmes/article/view/8131sulfate-reducing bacteriaanaerobic corrosionmicrobiologically influenced corrosionbio-corrosion |
| spellingShingle | A. Abu Bakar M. K. F. Mohd Ali N. Md Noor N. Yahaya M. Ismail A. Abdullah Bio-corrosion of carbon steel by sulfate reducing bacteria consortium in oil and gas pipelines Journal of Mechanical Engineering and Sciences sulfate-reducing bacteria anaerobic corrosion microbiologically influenced corrosion bio-corrosion |
| title | 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_short | 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 |
| topic | sulfate-reducing bacteria anaerobic corrosion microbiologically influenced corrosion bio-corrosion |
| url | https://journal.ump.edu.my/jmes/article/view/8131 |
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