Publication Date:
2017-11-16
Description:
Axial backmixing is an important issue in extraction columns, since it heavily affects mass transfer performance. A miniaturized, stirred-pulsed column was investigated regarding its backmixing characteristics in the continuous phase using the system water/n-butyl acetate. Residence time distributions were determined through pulse experiments with potassium chloride, which was detected via electrical conductivity. To perform the conductivity measurement without distortion of the two-phase flow, electrodes with an annular design were manufactured, which precisely line up with the inner column wall. This design is a promising alternative for using in small-scale tubular devices, where commercial electrodes do not fit, and in applications, where interference with the flow must be avoided.
Print ISSN:
0930-7516
Electronic ISSN:
1521-4125
Topics:
Chemistry and Pharmacology
,
Process Engineering, Biotechnology, Nutrition Technology
