| Texto completo | |
| Autor(es): |
Meirelles, Antonio J. A.
;
Biasi, Lilian C. K.
Número total de Autores: 2
|
| Tipo de documento: | Artigo Científico |
| Fonte: | Separation and Purification Technology; v. 355, p. 9-pg., 2024-09-19. |
| Resumo | |
Distillation, absorption, and stripping are well-established and widely used but energy-intensive separation processes. The energy required by this type of equipment can be efficiently reduced by splitting one of the streams of liquid or vapor/gas inside the column, in a technique known as parallel streams. Until now, this technique has been applied to specific separation processes, and its benefits upon mass transfer are not yet fully understood. A comprehensive proof of the mass transfer improvement was obtained through a detailed analysis of the parallel streams' effect on the driving forces. The analysis considered para-processes with a vapor/gas phase partitioned into beta-streams of the same composition and extended the proof to subsequent trays above the first two in vapor/gas-liquid columns with one partition (beta = 2). The results obtained were tested and exemplified for processes of industrial interest, such as the recovery of bioethanol from the carbon dioxide stream produced during sugar fermentation and the methanol/ethanol distillation. The present work shows evidence that columns with parallel streams have advantages over the conventional process for various separations by increasing the mass transfer driving force. (AU) | |
| Processo FAPESP: | 16/10636-8 - Da fábrica celular à biorrefinaria integrada Biodiesel-Bioetanol: uma abordagem sistêmica aplicada a problemas complexos em micro e macroescalas |
| Beneficiário: | Roberto de Campos Giordano |
| Modalidade de apoio: | Auxílio à Pesquisa - Programa BIOEN - Temático |
| Processo FAPESP: | 21/09028-1 - Uso de solventes orgânicos na extração e refino de óleos vegetais: determinação de propriedades físicas e energias livres de Gibbs por simulação molecular |
| Beneficiário: | Lilian Caroline Kramer Biasi |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |
| Processo FAPESP: | 14/21252-0 - Equilíbrio e processos de produção de biocombustíveis e bioprodutos |
| Beneficiário: | Antonio José de Almeida Meirelles |
| Modalidade de apoio: | Auxílio à Pesquisa - Temático |