TY - JOUR
T1 - Field sludge characterization obtained from inner of pipelines
AU - Nava, N.
AU - Sosa, E.
AU - Alamilla, J. L.
AU - Knigth, C.
AU - Contreras, A.
PY - 2009/11
Y1 - 2009/11
N2 - Physicochemical characterization of sludge obtained from refined hydrocarbons transmission pipeline was carried out through Mössbauer spectroscopy and X-ray diffraction. The Mössbauer and X-ray patterns indicate the presence of corrosion products composed of different iron oxide and sulfide phases. Hematite (α-Fe2O3), magnetite (Fe3O4), maghemite (γ-Fe2O3), magnetic and superparamagnetic goethite (α-FeOOH), pyrrhotite (Fe1-xS), akaganeite (β-FeOOH), and lepidocrocite (γ-FeOOH) were identified as corrosion products in samples obtained from pipeline transporting Magna and Premium gasoline. For diesel transmission pipeline, hematite, magnetite, and magnetic goethite were identified. Corrosion products follow a simple reaction mechanism of steel dissolution in aerated aqueous media at a near-neutral pH. Chemical composition of the corrosion products depends on H2O and sulfur inherent in fluids (traces). These results can be useful for decision-making with regard to pipeline corrosion control.
AB - Physicochemical characterization of sludge obtained from refined hydrocarbons transmission pipeline was carried out through Mössbauer spectroscopy and X-ray diffraction. The Mössbauer and X-ray patterns indicate the presence of corrosion products composed of different iron oxide and sulfide phases. Hematite (α-Fe2O3), magnetite (Fe3O4), maghemite (γ-Fe2O3), magnetic and superparamagnetic goethite (α-FeOOH), pyrrhotite (Fe1-xS), akaganeite (β-FeOOH), and lepidocrocite (γ-FeOOH) were identified as corrosion products in samples obtained from pipeline transporting Magna and Premium gasoline. For diesel transmission pipeline, hematite, magnetite, and magnetic goethite were identified. Corrosion products follow a simple reaction mechanism of steel dissolution in aerated aqueous media at a near-neutral pH. Chemical composition of the corrosion products depends on H2O and sulfur inherent in fluids (traces). These results can be useful for decision-making with regard to pipeline corrosion control.
KW - A. Steel
KW - B. Mössbauer Spectroscopy
KW - B. X-ray diffraction
KW - C. Internal oxidation
KW - C. Rust
UR - http://www.scopus.com/inward/record.url?scp=70349487184&partnerID=8YFLogxK
U2 - 10.1016/j.corsci.2009.06.048
DO - 10.1016/j.corsci.2009.06.048
M3 - Artículo
SN - 0010-938X
VL - 51
SP - 2652
EP - 2656
JO - Corrosion Science
JF - Corrosion Science
IS - 11
ER -