Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.21/2847
Título: Experimental Measurements and Correlation of the Solubility of Three Primary Amides in Supercritical CO2: Acetanilide, Propanamide, and Butanamide
Autor: Coelho, José Augusto Paixão
Naydenova, Greta P.
Yankov, Dragomir S.
Stateva, Roumiana P.
Palavras-chave: Carbon-dioxide
Fluids
Solids
Equilibria
Butyramide
Solvation
System
Energy
Model
Data: Jul-2013
Editora: Amer Chemical Soc
Citação: COELHO, José Augusto Paixão.; NAYDENOV, Greta P.; YANKOV, Dragomir S.; STATEVA, Roumiana P. - Experimental Measurements and Correlation of the Solubility of Three Primary Amides in Supercritical CO2: Acetanilide, Propanamide, and Butanamide. Journal of Chemical and Engineering Data. ISSN 0021-9568. Vol. 58, nr. 7 (2013), p. 2110-2115.
Resumo: Solubilities of three primary amides, namely, acetanilide, propanamide, and butanamide, in supercritical carbon dioxide were measured at T = (308.2, 313.2, and 323.2) K over the pressure range (9.0 to 40.0) MPa by a flow type apparatus. The solubility behavior of the three solids shows an analogous trend with a crossover region of the respective isotherms between (12 to 14) MPa. The solubility of each amide, at the same temperature and pressure, decreases from propanamide to acetanilide. Pure compound properties required for the modeling were estimated, and the solubilities of the amides were correlated by using the Soave-Redlich-Kwong cubic equation of state with an absolute average relative deviation (AARD) from (1.3 to 6.1) %.
Peer review: yes
URI: http://hdl.handle.net/10400.21/2847
ISSN: 0021-9568
Aparece nas colecções:ISEL - Eng. Quim. Biol. - Artigos



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