Development of a hydrodynamic model for air-lift reactors

• Autor(a) principal: Carvalho,E.
• Data de Publicação: 2000
• Outros Autores: Camarasa,E., Meleiro,L.A.C., Maciel Filho,R., Domingues,A., Vial,Ch., Wild,G., Poncin,S., Midoux,N., Bouillard,J.
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Brazilian Journal of Chemical Engineering
• Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322000000400025
• topic: 1D hydrodynamic model; momentum balance equations; air-lift reactors

In this paper, a 1D hydrodynamic model has been developed for gas hold-up and liquid circulation velocity prediction in air-lift reactors. The model is based on momentum balance equations and has been adjusted to experimental data collected on a pilot plant reactor equipped with two types of gas distributors and using water and water/butanol as the liquid phase. Different techniques of signal analysis have also been applied to pressure fluctuations in order to extract information about flow regimes and regime transitions. A good knowledge of the flow pattern is essential to establish adequate correlations for the hydrodynamic model.