Effect of fluid properties on dispersion in flow through packed beds

• Type: Article in International Scientific Journal
• Date: 2003

Authors

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

Journal

Title: AICHE Journal

Vol. 49 No. 8

Pages: 1980-1985

ISSN: 0001-1541

Publisher: Wiley-Blackwell

Indexing

ISI Web of Knowledge - 25 Citations

ISI Web of Science

Scopus - 31 Citations

COMPENDEX

Other information

Authenticus ID: 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 6