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Revista de la Facultad de Ingeniería Universidad Central de Venezuela
versión impresa ISSN 0798-4065
Resumen
NARDONE, Virna et al. Comparative study of natural gas hydrate predictive empirical models. Rev. Fac. Ing. UCV [online]. 2009, vol.24, n.3, pp.21-31. ISSN 0798-4065.
Natural gas hydrates are made up of clusters that are formed in the presence of low molecular weight gases and water at high pressures and low temperature that could block gas and oil pipelines, making it necessary to understand and develop reliable models capable of predicting the conditions under which hydrates are formed in order to prevent them. In this study, some empirical models were applied to predict the conditions of hydrate formation from a set of hydrocarbon mixtures, which varied from raw components to a mixture of multi-components in a wide range of pressure and temperature. Motiees (1991) demonstrative method resulted the one which showed fewer percentile errors to all the set of mixtures studied. Hammerschmidts (1934) model showed the lowest deviations for most of the mixtures evaluated. We obtained a greater deviation in the application of empirical models for binary systems, decreasing as the number of components in the mixture increased
Palabras clave : Hydrate; Natural gas; Prediction; Model; Empirical.