Morphological Size of Asphaltene Micelles in Asphalt and Heavy Residue

  • Jiunn-Ren Lin
  • Hsienjen Lian
  • Jason Chen
  • Teh Fu Yen

Abstract

Several techniques have been used to measure the morphological sizes of asphaltene micelles. Among these, the Guinier method for small angle x-ray scattering of both asphalt and heavy oils has been found to be especially useful. From radii of gyration determinations, the morphological diameters of asphaltene micelles are known to be ca. 10 nm. This can be supported by data from dynamic nuclear polarizations as well as from small angle neutron scattering work. Association and clustering of these basic micelles can be chemically or physically initiated by dipole-dipole interactions. The metal shadowing transmittance electron microscopy has been used to demonstrate these phenomena.

Keywords

Dynamic Nuclear Polarization Small Angle Scattering Asphalt Sample Strategic Highway Research Program Asphaltene Particle 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 1991

Authors and Affiliations

  • Jiunn-Ren Lin
    • 1
  • Hsienjen Lian
    • 1
  • Jason Chen
    • 1
  • Teh Fu Yen
    • 1
  1. 1.Civil and Environmental EngineeringUniversity of Southern CaliforniaLos AngelesUSA

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