New empirical expressions to correlate solubilities of solids in supercritical carbon dioxide


Autoria(s): Garlapati, Chandrasekhar; Madras, Giridhar
Data(s)

10/03/2010

Resumo

Supercritical processes are gaining importance in the last few years in the food, environmental and pharmaceutical product processing. The design of any supercritical process needs accurate experimental data on solubilities of solids in the supercritical fluids (SCFs). The empirical equations are quite successful in correlating the solubilities of solid compounds in SCF both in the presence and absence of cosolvents. In this work, existing solvate complex models are discussed and a new set of empirical equations is proposed. These equations correlate the solubilities of solids in supercritical carbon dioxide (both in the presence and absence of cosolvents) as a function of temperature, density of supercritical carbon dioxide and the mole fraction of cosolvent. The accuracy of the proposed models was evaluated by correlating 15 binary and 18 ternary systems. The proposed models provided the best overall correlations. (C) 2009 Elsevier BA/. All rights reserved.

Formato

application/pdf

Identificador

http://eprints.iisc.ernet.in/26990/1/new.pdf

Garlapati, Chandrasekhar and Madras, Giridhar (2010) New empirical expressions to correlate solubilities of solids in supercritical carbon dioxide. In: Thermochimica Acta, 500 (1-2). pp. 123-127.

Publicador

Elsevier Science

Relação

http://dx.doi.org/10.1016/j.tca.2009.12.004

http://eprints.iisc.ernet.in/26990/

Palavras-Chave #Chemical Engineering
Tipo

Journal Article

PeerReviewed