Artículo
Measurement and modeling of solubilities of capsaicin in high-pressure CO2
Fecha de publicación:
12/2005
Editorial:
Elsevier Science
Revista:
Journal of Supercritical Fluids
ISSN:
0896-8446
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Measurements on solid-fluid equilibrium were performed for capsaicin in sub- and supercritical carbon dioxide (CO2) at several temperatures (298, 308, 313 and 318 K) and over a pressure range from 6 to 40 MPa, to verify the operation of a new static-analytic set-up. This set-up consisted of a high-pressure static equilibrium cell coupled to a high-performance liquid chromatograph (HPLC). The new equilibrium data have been critically compared with available literature data; some differences were observed, especially at the two highest assayed temperatures. Experimental solubility values were correlated by using three different models, a density-based model, a cubic equation of state with quadratic mixing rules, and a group contribution equation of state. The density correlation results showed good agreement with the experimental data, in contrast to the results of both equations of state.
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Identificadores
Colecciones
Articulos(PLAPIQUI)
Articulos de PLANTA PILOTO DE INGENIERIA QUIMICA (I)
Articulos de PLANTA PILOTO DE INGENIERIA QUIMICA (I)
Citación
de La Fuente, Juan C.; Valderrama, José O.; Bottini, Susana Beatriz; del Valle, José M.; Measurement and modeling of solubilities of capsaicin in high-pressure CO2; Elsevier Science; Journal of Supercritical Fluids; 34; 2; 12-2005; 195-201
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