Extraction of microalgae oil by organic solvents: experimental determination and modeling of liquid–liquid equilibria using vegetable oils mixture as a model system
| Autor: | Jane Sélia dos Reis Coimbra, Monique Ellen Torres da Silva, Fábio de Ávila Rodrigues, Marcio Arêdes Martins, Simone Borges Simão Monteiro, Rita de Cássia Superbi de Sousa, Mithyzi Andrade Leal |
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| Rok vydání: | 2021 |
| Předmět: |
Binodal
UNIQUAC Chromatography biology 020209 energy General Chemical Engineering Extraction (chemistry) 02 engineering and technology biology.organism_classification Gibbs free energy chemistry.chemical_compound symbols.namesake Vegetable oil 020401 chemical engineering chemistry Tripalmitin 0202 electrical engineering electronic engineering information engineering Acetone symbols Chlorella pyrenoidosa 0204 chemical engineering |
| Zdroj: | Brazilian Journal of Chemical Engineering. 38:629-638 |
| ISSN: | 1678-4383 0104-6632 |
| Popis: | This work presents liquid–liquid equilibrium data for systems formed of organic solvents (acetone and dimethyl sulfoxide) and a vegetable oil blend composed of palm and coconut oils (MOPC). The MOPC represents the crude oil of the microalgae Chlorella pyrenoidosa as a basis for studying the liquid–liquid extraction in the oil refining stage. The equilibrium data for the MOPC + dimethyl sulfoxide + acetone systems were determined at four temperatures (293.15, 298.15, 308.15, and 318.15 K). Experimental binodal curves were performed by the cloud point determination, showing a decrease of the biphasic region with temperature increment. The UNIQUAC model was used to correlate the experimental data, using tripalmitin triacylglycerol properties to represent the vegetable oil blend. The standard deviation between the experimental and calculated data was 1.33%. The quality of experimental data and regressed parameters were checked by analyzing the Gibbs energy of the mixing function’s topology. |
| Databáze: | OpenAIRE |
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