Infrared spectroscopy and the study of interfacial viscosity and elasticity of crude oil components from Ekpe platform, Nigeria, at crude oil-water interfaces
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ABSTRACT
Direct application of infrared spectroscopy in the study of interfacial viscosity and elasticity of water-crude oil
emulsion has produced interesting outcomes. In addition to molecular absorption, the near infrared (NIR) spectra
are dependent upon several physical parameters, in which the most prominent is scattering from particles. It
has been established that, as the particle size increases, more light is scattered by the sample which is refloated
in the NIR spectrum as an upwards shift of the baseline. The specific determination of the interfacial viscosity
and elasticity of an interface was carried out with dilational stress where the interfacial resistance to variations
in area was consistently monitored. Time dependent measurements was made by simultaneously analyzing the
interfacial tension and surface area of a drop, whose volume was periodically perturbed.
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Q Science (General), QD Chemistry