Open AccessFLOODING IN PULSED SIEVE PLATE EXTRACTION COLUMNS WITH MASS TRANSFER EFFECTS
Author(s) -
A. Tribess,
Giuseppe F. Brunello
Publication year - 1998
Publication title -
brazilian journal of chemical engineering/brazilian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.313
H-Index - 52
eISSN - 1678-4383
pISSN - 0104-6632
DOI - 10.1590/s0104-66321998000100003
Subject(s) - toluene , sieve (category theory) , mass transfer , acetone , analytical chemistry (journal) , extraction (chemistry) , materials science , mass fraction , plate column , porosity , ternary operation , phase (matter) , chromatography , chemistry , composite material , mathematics , organic chemistry , combinatorics , computer science , programming language
Measurements of flooding in a pulsed sieve plate extraction column were carried out using toluene - water and toluene - acetone - water systems. The influence of plate spacing and initial acetone mass fraction in toluene (in the case of the three-component system) on flooding curves was studied and empirical correlations for the maximum of these curves are presented. In the ternary system, acetone goes from toluene drops to water: the descending phase. An experimental pulsed column, with an internal diameter of 39.6 x 10-3 m and an operational height of 2,670 m, and with stainless steel perforated plates, thickness of 1.5 x 10-3 m, with a hole diameter of 3 x 10-3 m and a free fractional area of 23%, was used. It was verified that the plate spacing and initial acetone mass fraction in the toluene have a great influence on throughput and frequency at the maximum; this influence depends on the phase ratio