TY - JOUR
T1 - On a probable catalytic interaction between magnetite (Fe3O4) and petroleum
AU - Cosultchi, A.
AU - Ascencio-Gutiérrez, J. A.
AU - Reguera, E.
AU - Zeifert, B.
AU - Yee-Madeira, H.
PY - 2006/5
Y1 - 2006/5
N2 - Magnetic and nonmagnetic iron compounds were detected as part of asphaltene deposits formed on tubing wall surface. To shed light on the probable role of the iron compounds in the formation of such deposits, magnetite (Fe3O4), one of the intrinsic components of the iron oxide multilayer scale of any carbon steel surface, was contacted with crude oil at 170 °C, a temperature similar to that of the bottom well, and subsequently aged at room temperature. Characterization of the samples was made by using XRD, Mössbauer, IR, TGA, EDS, and microscopic (SEM and TEM) techniques. Small amounts of new iron phases, magnetic (oxidized magnetite) and nonmagnetic (iron oxyhydroxides), an increase in the content of C=C and C-O bonds of the organic phase, and an increase of the thermal stability of the organic phase indicated the formation of iron complexes of Fe ions and FeOOH with the oxygen functionalities.
AB - Magnetic and nonmagnetic iron compounds were detected as part of asphaltene deposits formed on tubing wall surface. To shed light on the probable role of the iron compounds in the formation of such deposits, magnetite (Fe3O4), one of the intrinsic components of the iron oxide multilayer scale of any carbon steel surface, was contacted with crude oil at 170 °C, a temperature similar to that of the bottom well, and subsequently aged at room temperature. Characterization of the samples was made by using XRD, Mössbauer, IR, TGA, EDS, and microscopic (SEM and TEM) techniques. Small amounts of new iron phases, magnetic (oxidized magnetite) and nonmagnetic (iron oxyhydroxides), an increase in the content of C=C and C-O bonds of the organic phase, and an increase of the thermal stability of the organic phase indicated the formation of iron complexes of Fe ions and FeOOH with the oxygen functionalities.
UR - http://www.scopus.com/inward/record.url?scp=33745612711&partnerID=8YFLogxK
U2 - 10.1021/ef0502958
DO - 10.1021/ef0502958
M3 - Artículo
SN - 0887-0624
VL - 20
SP - 1281
EP - 1286
JO - Energy and Fuels
JF - Energy and Fuels
IS - 3
ER -