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dc.contributor.authorMorks, Magdi F
dc.contributor.authorCorrigan, Penny A
dc.contributor.authorCole, Ivan S
dc.date.accessioned2017-11-22T08:08:16Z
dc.date.available2017-11-22T08:08:16Z
dc.date.issued2012
dc.identifier.issn1750-5836
dc.identifier.doi10.1016/j.ijggc.2011.10.005
dc.identifier.urihttp://hdl.handle.net/10072/173771
dc.description.abstractThe economic transport of CO2 rich fluids for carbon capture and sequestration requires the development of economical coatings for pipeline steel. A possible system is sodium orthovanadate (Na3VO4) embedded in a modified zinc phosphate coating with Mn–Mg additives. The effect of this coating on the inhibition corrosion on a mild steel surface was investigated at different pH and vanadate concentration. Weight loss and electrochemical polarization methods were applied to evaluate the corrosion rate and inhibition efficiency (η). Mild steel and modified zinc phosphate coated steel were immersed in slightly acidic de-ionized water (HCl/H2O) (pH 4) containing different sodium vanadate concentrations (0.0005, 0.001, 0.005 M). The Mn–Mg–zinc phosphate-plus-vanadate coating has a high inhibition efficiency (η) of 99% when formed by immersion in 0.001 M sodium vanadate at pH 4. As the vanadate concentration increased to 0.005 M the inhibition efficiency decreased to 25%. The polarization of steel was performed at pH range of 1–9. The effect of adding sodium orthovanadate on the polarization behaviour of steel at high pH was investigated. At high pH (>7) the inhibition efficiency of vanadate ions increases as the VO4−3 concentration dropped to 0.05 mM. The effect of Mn–Mg–zinc phosphate aging time in the vanadate inhibitor on the corrosion rate was also investigated.
dc.description.peerreviewedYes
dc.languageEnglish
dc.language.isoeng
dc.publisherElsevier
dc.relation.ispartofpagefrom218
dc.relation.ispartofpageto224
dc.relation.ispartofjournalInternational Journal of Greenhouse Gas Control
dc.relation.ispartofvolume7
dc.subject.fieldofresearchEarth sciences
dc.subject.fieldofresearchEnvironmental sciences
dc.subject.fieldofresearchEngineering
dc.subject.fieldofresearchMaterials engineering not elsewhere classified
dc.subject.fieldofresearchcode37
dc.subject.fieldofresearchcode41
dc.subject.fieldofresearchcode40
dc.subject.fieldofresearchcode401699
dc.titleMn-Mg based zinc phosphate and vanadate for corrosion inhibition of steel pipelines transport of CO2 rich fluids
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.hasfulltextNo Full Text
gro.griffith.authorCole, Ivan


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