Characterization of hydrocarbon degrading bacteria isolated from Indian crude oil reservoir and their influence on biocorrosion of carbon steel API 5LX

Punniyakotti Parthipan, Punniyakotti Elumalai, Yen Peng Ting, Pattanathu K.S.M. Rahman, Aruliah Rajasekar

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Abstract

The role of biosurfactants producing hydrocarbon-degrading bacteria (HDB) on biodegradation and bio-corrosion was evaluated. Biodegradation efficiency (BE) of Streptomyces parvus B7 was found to be 82% when compared to other bacteria. Increased production of biosurfactants directly influences the rate of crude oil BE. Corrosion of carbon steel was found to be more severe in mixed bacterial consortia (1.493 ± 0.015 mm/y). X-ray diffraction confirmed the presence of high intensity of ferric oxide (Fe2O3), iron oxide (Fe3O4), manganese oxide (Mn3O4), and manganese dioxide (MnO2) in corrosion product of mixed bacterial system. Biofilm formation was assist to pit formation on the carbon steel surface and it was evidenced from the atomic force microscopy (AFM) and scanning electron microscopy (SEM) analysis. Corrosion current was increased in the presence of mixed consortia 1.6 ± 0.2 × 10−3 A/cm−2, compared to abiotic control 1.2 ± 0.15 × 10−4 A/cm−2, this values were well supported with charge transfer values and these observations confirmed that mixed bacterial consortia play key role in the corrosion of carbon steel. This is the first report to show degradation of crude oil by Streptomyces parvus B7 and its effects on the corrosion of carbon steel in oil reservoir.

Original languageEnglish
Pages (from-to)67-80
Number of pages14
JournalInternational Biodeterioration and Biodegradation
Volume129
Early online date19 Mar 2018
DOIs
Publication statusPublished - 30 Apr 2018

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Oil and Gas Fields
Petroleum reservoirs
Corrosion
Steel
Petroleum
Hydrocarbons
Application programming interfaces (API)
Carbon steel
crude oil
corrosion
Bacteria
Carbon
Crude oil
steel
hydrocarbon
bacterium
carbon
Biodegradation
biodegradation
Streptomyces

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Parthipan, Punniyakotti ; Elumalai, Punniyakotti ; Ting, Yen Peng ; Rahman, Pattanathu K.S.M. ; Rajasekar, Aruliah. / Characterization of hydrocarbon degrading bacteria isolated from Indian crude oil reservoir and their influence on biocorrosion of carbon steel API 5LX. In: International Biodeterioration and Biodegradation. 2018 ; Vol. 129. pp. 67-80.
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Characterization of hydrocarbon degrading bacteria isolated from Indian crude oil reservoir and their influence on biocorrosion of carbon steel API 5LX. / Parthipan, Punniyakotti; Elumalai, Punniyakotti; Ting, Yen Peng; Rahman, Pattanathu K.S.M.; Rajasekar, Aruliah.

In: International Biodeterioration and Biodegradation, Vol. 129, 30.04.2018, p. 67-80.

Research output: Contribution to journalArticle

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