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Autores
Orientador(es)
Resumo(s)
The simulation of the mass transfer behavior during the rise stage of a bubble containing a concentrated solute in the presence of an instantaneous chemical reaction on the liquid side can be easily obtained from first principles provided that depletion of solute does not affect the molecular and hydrodynamic behavior of the bubble. The effect of this common simplifying assumption is tested in dimensionless for versus the less constrained situation which allows for changes in the rise velocity and rate of transfer of solute along the bubble rising path. This assumption can be misleading and yield excessive values for the solute removal, and the degree of error increases with solute concentration, solute diffusivity, and bubble release pressure.
Descrição
Palavras-chave
Chemical absorption Instantaneous reaction Mathematical simulation Test of approximation
Contexto Educativo
Citação
MALCATA, F. Xavier - On the validity of usual approximations in the simulation of instantaneous chemical absorption from single gas bubbles. Chemical and Biochemical Engineering Quarterly. ISSN 0352-9568. Vol. 7, n.º 2 (1993), p. 73-77
Editora
Croatian Society of Chemical Engineers