| Revista: | Brazilian journal of chemical engineering |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000308939 |
| ISSN: | 0104-6632 |
| Autors: | Sarmento, L.A.V1 Machado, R.A.F2 Bolzan, A Spricigo, C.B3 Petrus, J.C.C |
| Institucions: | 1Centro Federal de Educacao Tecnologica do Parana, Medianeira, Parana. Brasil 2Universidade Federal de Santa Catarina, Departamento de Engenharia Quimica e Engenharia de Alimentos, Florianopolis, Santa Catarina. Brasil 3Pontificia Universidade Catolica do Parana, Centro de Ciencias Exatas e de Tecnologia, Curitiba, Parana. Brasil |
| Any: | 2004 |
| Període: | Jun |
| Volum: | 21 |
| Número: | 2 |
| Paginació: | 285-291 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Experimental, aplicado |
| Resumen en inglés | Although it is still used very little by industry, the process of essential oil extraction from vegetable matrices with supercritical CO2 is regarded as a potentially viable technique. The operation of separating the extract from the solvent is carried out by reducing the pressure in the system. Separation by membranes is an alternative that offers lower energy consumption and easier operation than traditional methods of separation. Combining the processes essential oil extraction with supercritical CO2 and separation by membranes permits the separation of solvent and oil without the need for large variations in extraction conditions. This results in a large energy savings in the case of solvent repressurisation and reuse. In this study, the effectiveness of reverse osmosis membranes in separating lemongrass essential oil from mixtures with supercritical CO2 was tested. The effects of feed oil concentration and transmembrane pressure on CO2 permeate flux and oil retention were studied for three membrane models |
| Disciplines | Química |
| Paraules clau: | Ingeniería química, Té limón, Aceites esenciales, Extracción supercrítica, Dióxido de carbono, Membranas de ósmosis reversa |
| Keyword: | Chemistry, Chemical engineering, Lemongrass, Essential oils, Supercritical extraction, Carbon dioxide, Reverse osmosis membranes |
| Text complet: | Texto completo (Ver HTML) |
