Preliminary Results on Molecular Modeling of Asphaltenes Using Structure Elucidation Programs in Conjunction with Molecular Simulation Programs

Autor: A. Y. Huc, M. J. Taylor, M. Vandenbroucke, I. Kowalewski, Jean-Loup Faulon
Rok vydání: 1996
Předmět:
Zdroj: University of Manchester-PURE
ISSN: 1520-5029
0887-0624
DOI: 10.1021/ef950106t
Popis: Molecular modeling using structure elucidation programs in conjunction with molecular simulation programs has been performed on asphaltene molecules, the heaviest fraction of crude oil, in order to obtain a chemical model allowing us to tentatively study their physicochemical properties. We have analyzed Boscan asphaltenes (Venezuela) derived from a marine source rock. The different steps of this molecular modeling are described. First, a 3-D chemical representation of Boscan asphaltene is defined from an analytical data set. Second, the results of molecular dynamic simulations indicate that only a few stable conformations are possible due to the high reticulation of the model of the asphaltene unit obtained.
Databáze: OpenAIRE