Liquid dispersion in packed columns: Experiments and numerical modeling

A Numerical Case Study of Packed Columns

This paper presents results concerning the validation of a recently developed packing algorithm. The basic ethos of this algorithm, known as DigiPac, is to use threedimensional methods to digitise particle shapes, and to use this digital information directly in computations of how particles pack together without further conversion or the need for modelling. A variety of simulations of packed co...

Investigation of mass transfer coefficients in irregular packed liquid-liquid extraction columns in the presence of various nanoparticles

In the present study, the effect of various nanofluids on mass transfer coefficients in an irregular packed liquid-liquid extraction column was investigated. The chemical system of toluene–acetic acid–water was used. 10 nm SiO2, TiO2 and ZrO2 nanoparticles with various concentrations were dispersed in toluene-acid acetic to provide nanofluids. The influence of concentration and hydrophobicity/h...

Prediction of Mean Drop Size in Pulsed Packed Extraction Columns

Preliminary Numerical Experiments on Oceanic Dispersion

It was reported that after the magnitude 9.0 earthquake and resulting tsunami that occurred on March 11, 2011, some radioactive material, including iodine and cesium, was discharged into the Pacific Ocean because of the Fukushima Daiichi nuclear power plant (NPP) disaster. High concentrations of I and Cs were found in the seawater and seabed sediment along the coastline of Fukushima Prefecture....

Packed versus capillary columns in gaschromatography.

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