Effect of fluid properties on dispersion in flow through packed beds

• Tipo: Artigo em Revista Científica Internacional
• Data: 2003

Autores

J. M. P. Q. Delgado (Autor) FEUP; João R. F. Guedes de Carvalho (Autor) FEUP

Revista

Título: AICHE Journal

Vol. 49 Nº 8

Páginas: 1980-1985

ISSN: 0001-1541

Editora: Wiley-Blackwell

Indexação

ISI Web of Knowledge - 25 Citações

ISI Web of Science

Scopus - 31 Citações

COMPENDEX

Outras Informações

ID Authenticus: P-000-FKB

DOI: 10.1002/aic.690490808

Abstract (EN): An experimental study is described on the effect of liquid properties on axial dispersion in packed beds. Working with water between 278 and 373 K, the range 57 < Sc < 1, 930 was covered, and this represents a significant fraction of the domain located between what is traditionally considered "gas behavior" (that is, Sc congruent to 1) and "liquid behavior" (typically, Sc > 600). A representation of Pe(L) vs. Pe(m) reveals the existence of a very flat minimum (typically 10(2) < Pe(m) < 10(4)) for each value of Sc. The value of the minimum is almost insensitive to variations in Sc, for Sc > 700, but it increases significantly with a decrease in Sc, for Sc < 700. The experimental data used to test available correlations for predicting D-L show that they are inaccurate over considerable ranges of the variables.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 6