A critical review of dispersion in packed beds

• Tipo: Artigo em Revista Científica Internacional
• Data: 2006

Autores

J. M. P. Q. Delgado (Autor) FEUP

Revista

Título: HEAT AND MASS TRANSFER

Vol. 42 Nº 4

Páginas: 279-310

ISSN: 0947-7411

Indexação

ISI Web of Knowledge - 237 Citações

ISI Web of Science

Scopus - 312 Citações

INSPEC

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Outras ciências da engenharia e tecnologias

Outras Informações

ID Authenticus: P-004-NE3

DOI: 10.1007/s00231-005-0019-0

Abstract (EN): The phenomenon of dispersion (transverse and longitudinal) in packed beds is summarized and reviewed for a great deal of information from the literature. Dispersion plays an important part, for example, in contaminant transport in ground water flows, in miscible displacement of oil and gas and in reactant and product transport in packed bed reactors. There are several variables that must be considered, in the analysis of dispersion in packed beds, like the length of the packed column, viscosity and density of the fluid, ratio of column diameter to particle diameter, ratio of column length to particle diameter, particle size distribution, particle shape, effect of fluid velocity and effect of temperature (or Schmidt number). Empirical correlations are presented for the prediction of the dispersion coefficients (DT and DL) over the entire range of practical values of Sc and Pem, and works on transverse and longitudinal dispersion of non-Newtonian fluids in packed beds are also considered.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 32