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Mathematical Modelling of Supercritical CO2 Extraction of Volatile Oils from Aromatic Plants

SYSNO ASEP	0346702
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Mathematical Modelling of Supercritical CO2 Extraction of Volatile Oils from Aromatic Plants
Author(s)	Grosso, C. (PT) Coelho, J.P. (PT) Pessoa, F.L.P. (BR) Fareleira, J.M.N.A. (PT) Barroso, J.G. (PT) Urieta, J.S. (ES) Palavra, A.F. (PT) Sovová, Helena (UCHP-M)_{RID, ORCID, SAI}
Source Title	Chemical Engineering Science. - : Elsevier - ISSN 0009-2509 Roč. 65, č. 11 (2010), s. 3579-3590
Number of pages	12 s.
Language	eng - English
Country	GB - United Kingdom
Keywords	supercritical fluid extraction ; modelling ; volatile oils
Subject RIV	CI - Industrial Chemistry, Chemical Engineering
CEZ	AV0Z40720504 - UCHP-M (2005-2011)
UT WOS	000278602000021
DOI	10.1016/j.ces.2010.02.046
Annotation	The modelling of the experimental data of the extraction of the volatile oil from six aromatic plants (coriander, fennel, savoury, winter savoury, cotton lavender and thyme) was performed using five mathematical models, based on differential mass balances. In all cases the extraction was internal diffusion controlled and the internal mass transfer coefficient (ks) has been found to change with pressure, temperature and particle size. For fennel, savoury and cotton lavender, the external mass transfer and the equilibrium phase also influenced the second extraction period, since ks changed with the tested flow rates. In general, the axial dispersion coefficient could be neglected for the conditions studied, since Peclet numbers were high. On the other hand, the solute-matrix interaction had to be considered in order to ensure a satisfactory description of the experimental data.
Workplace	Institute of Chemical Process Fundamentals
Contact	Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227
Year of Publishing	2011

Number of the records: 1