Perlindungan biokakisan keluli karbon akibat bakteria penurun sulfat yang dipencil daripada minyak mentah tropika

Translated title of the contribution: Biocorrosion protection of carbon steel due to isolated sulfate-reducing bacteria from tropical crude oil

Mohd Nazri Idris, Abdul Razak Daud, Nurakma Mahat, Fathul Karim Sahrani, Norinsan Kamil Othman

Research output: Contribution to journalArticle

Abstract

Biocorrosion menace of carbon steel pipeline in petroleum industry attributed to sulfate-reducing bacteria (SRB) activity is disrupting the crude oil transportation process and increase the operational cost. Efforts for protecting the carbon steel pipeline and controlling the SRB activities are continuously being researched. In this work, the effectiveness of tetramethylammonium bromide (TMB), carboxymethyl trimethylammonium (BTN) and benzalkonium chloride (BKC) for protecting carbon steel in environment containing SRB was studied by potential dynamic polarization (PED) method and the morphology of carbon steel surface was analyzed by scanning electron microscope. PED indicated that TMB, BTN and BKC were capable of reducing the corrosion rate to 0.13, 0.56 and 0.17 mm/yr, respectively, as compared with 8.91 mm/yr of control medium, which contained SRB. The morphology of surface biofilm proven that the rate of SRB growth and their metabolism product has also been reduced. This study suggested that there are two mechanisms of corrosion protection i.e. the present quaternary ammonium compounds inhibited the corrosion process on account of adsorption mechanism, meanwhile the mitigation process of SRB and their activities occurred due to interaction process between the quaternary ammonium compounds and SRB itself. In conclusion, TMB, BTN and BKC are able to protect the carbon steel from actively corroding due to SRB activities.

Original languageMalay
Pages (from-to)1835-1841
Number of pages7
JournalSains Malaysiana
Volume45
Issue number12
Publication statusPublished - 1 Dec 2016

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Carbon steel
Bacteria
Crude oil
Ammonium compounds
Pipelines
Polarization
Sulfates
Petroleum industry
Biofilms
Corrosion protection
Corrosion rate
Metabolism
Electron microscopes
Corrosion
Scanning
Adsorption
Costs

ASJC Scopus subject areas

  • General

Cite this

Perlindungan biokakisan keluli karbon akibat bakteria penurun sulfat yang dipencil daripada minyak mentah tropika. / Idris, Mohd Nazri; Daud, Abdul Razak; Mahat, Nurakma; Sahrani, Fathul Karim; Othman, Norinsan Kamil.

In: Sains Malaysiana, Vol. 45, No. 12, 01.12.2016, p. 1835-1841.

Research output: Contribution to journalArticle

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abstract = "Biocorrosion menace of carbon steel pipeline in petroleum industry attributed to sulfate-reducing bacteria (SRB) activity is disrupting the crude oil transportation process and increase the operational cost. Efforts for protecting the carbon steel pipeline and controlling the SRB activities are continuously being researched. In this work, the effectiveness of tetramethylammonium bromide (TMB), carboxymethyl trimethylammonium (BTN) and benzalkonium chloride (BKC) for protecting carbon steel in environment containing SRB was studied by potential dynamic polarization (PED) method and the morphology of carbon steel surface was analyzed by scanning electron microscope. PED indicated that TMB, BTN and BKC were capable of reducing the corrosion rate to 0.13, 0.56 and 0.17 mm/yr, respectively, as compared with 8.91 mm/yr of control medium, which contained SRB. The morphology of surface biofilm proven that the rate of SRB growth and their metabolism product has also been reduced. This study suggested that there are two mechanisms of corrosion protection i.e. the present quaternary ammonium compounds inhibited the corrosion process on account of adsorption mechanism, meanwhile the mitigation process of SRB and their activities occurred due to interaction process between the quaternary ammonium compounds and SRB itself. In conclusion, TMB, BTN and BKC are able to protect the carbon steel from actively corroding due to SRB activities.",
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AU - Othman, Norinsan Kamil

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