| Revista: | Brazilian journal of chemical engineering |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000308744 |
| ISSN: | 0104-6632 |
| Autors: | Melo, S.A.B. Vieira de1 Costa, G.M.N2 Garau, R Casula, A Pittau, B |
| Institucions: | 1Universidade Tiradentes, Instituto de Tecnologia e Pesquisa, Aracaju, Sergipe. Brasil 2Universidade Federal da Bahia, Escola Politecnica, Salvador, Bahia. Brasil |
| Any: | 2000 |
| Període: | Sep |
| Volum: | 17 |
| Número: | 3 |
| Paginació: | 00-00 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Experimental, aplicado |
| Resumen en inglés | Supercritical CO2 extraction of essential oil from Thymus vulgaris leaves was studied using experimental data recently obtained in the Florys S.p.A. laboratory. Mass transfer coefficients in the supercritical and solid phases from extraction curves at 40°C and 20 MPa were evaluated using a mathematical model based on the local adsorption equilibrium of essential oil on lipid in leaves. The adsorption equilibrium constant was fitted to these experimental data, and internal and external mass transfer resistances were calculated, allowing identification of the mechanism controlling the extraction process |
| Disciplines | Química |
| Paraules clau: | Ingeniería química, Aceites esenciales, Extracción supercrítica de fluídos, Dióxido de carbono, Modelación matemática, Thymus vulgaris |
| Keyword: | Chemistry, Chemical engineering, Essential oils, Supercritical fluid extraction, Carbon dioxide, Mathematical modelling, Thymus vulgaris |
| Text complet: | Texto completo (Ver HTML) |
