Abstract

LEON, Adán-Yovani; PARRA, Martha  and  GROSSO, Jorge-Luis. ESTIMATION OF CRITICAL PROPERTIES OF TYPICALLY COLOMBIAN VACUUM RESIDUE SARA FRACTIONS. C.T.F Cienc. Tecnol. Futuro [online]. 2008, vol.3, n.4, pp.129-142. ISSN 0122-5383.

Knowledge of critical properties and the acentric factor is required in phase-equilibrium studies in different extraction processes conducted in the petroleum industry, particularly in the solvent deasphalting process. Correlations to estimate critical temperature, critical pressure and acentric factor values of SARA (Saturated, Aromatic, Resin, and Asphaltene) fractions of vacuum residue from the Barrancabermeja Refinery were determined from their physical properties such as density (molar volume) and molecular weight. New correlations for critical property prediction were evaluated using model molecules and the Avaullee and Satou's group contribution methods, respectively.

Keywords : vacuum residue; petroleum fraction; critical property; refinería de Barrancabermeja; Ciencia; Tecnología y Futuro.

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