Modeling vaporization efficiency for steam refining and deodorization

Autor(es)

Ceriani‚ R. ; Meirelles‚ A.J.A.

• Tipo de documento: Artigo Científico
• Fonte: Industrial & Engineering Chemistry Research; v. 44, n. 22, p. 8377-8386, 2005.

Resumo

This work is primarily concerned with batch operations found in the oil industry, as steam deodorization and steam refining, in which sparging steam in injected into a bubbling pool of oil. The physical situation with some suitable simplifications is discussed, and a theoretical model, which accounts for hydrostatic pressure and water solubility effects, is presented. The effects of some variables such as temperature, working pressure, vapor flow, and oil-layer height upon the vaporization efficiency values are analyzed. A good agreement was achieved for the prediction of vaporization efficiencies in comparison with the few experimental data available. To estimate the required properties (densities, viscosities, diffusivities, activity coefficients, and vapor pressures), group contribution methods and empirical equations were applied. (AU)

• Processo FAPESP: 05/02079-7 - Estudo da desodorização de óleos vegetais: impacto das perdas por reações químicas e por destilação na qualidade do produto final
• Beneficiário: Roberta Ceriani
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 03/04949-3 - Estudo por simulação computacional de uma coluna de destilação com arraste a vapor no processamento de óleos vegetais
• Beneficiário: Roberta Ceriani
• Modalidade de apoio: Bolsas no Brasil - Doutorado Direto
• Processo FAPESP: 05/53095-2 - Equilíbrio de fases e processos de separação de misturas graxas e aquosas
• Beneficiário: Antonio José de Almeida Meirelles
• Modalidade de apoio: Auxílio à Pesquisa - Temático