Main Article Content

Daniela Boyanova Dzhonova-Atanasova Krum Semkov Tatyana Petrova Simeon Darakchiev Konstantina Stefanova Svetoslav Nakov Roman Popov

Abstract

The scientific interest in the efficiency of packed bed columns is part of the world-wide pursuit of sustainability of processes. The maldistribution of the phases in the apparatus reduces the efficiency and makes difficult the prediction of process performance and scaling up. In the present work the operation of liquid distribution devices and high performance packings are investigated addressing the reasons for hydrodynamic non-uniformity of the liquid phase, including the formation and development of wall flow. Data are obtained from semi-industrial size experimental studies and mathematical modeling of the liquid flow through a layer of random Raschig Super-Ring packing. The effect of measures for ensuring uniform initial liquid distribution in the column apparatus is evaluated and the parameters in the mathematical model are identified.


 

Article Details

References

Cihla Z., Schmidt, O. A study of the flow of liquid when freely trickling over the packing in a cylindrical tower. Collection of Czechoslovak Chemical Communications, 1957, 22(3): 896-907.https://doi.org/10.1135/cccc19570896

Dzhonova-Atanasova, D., Kolev, N., Nakov, S. Determination of the liquid radial spreading coefficient of some highly effective packings. Chemical Engineering Technology, 2007, 30(2): 202-207. http://dx.doi.org/10.1002/ceat.200600327

Dzhonova-Atanasova D., Petrova, T., Darakchiev, S., Panayotova, P., Nakov, S., Popov, R., Semkov, Kr. Measurement of liquid distribution in random raschig super-ring packing. Scientific works of University of Food Technologies, 2014, 61(1): 644-647.

Staněk V., Kolář, V. Distribution of liquid over random packing. Collection of Czechoslovak Chemical Communications, 1965, 30(4): 1054-1059. https://doi.org/10.1135/cccc19651054

Staněk, V., Kolář, V. Distribution of liquid over a random packing. II. Derivation of relations for the distribution of wetting in a cylindrical column. Collection of Czechoslovak Chemical Communications, 1967, 32(12): 4207-4215. https://doi.org/10.1135/cccc19674207

Staněk, V., Kolář, V. Distribution of liquid over a random packing. IV. Verification of the boundary condition of liquid transfer between a packed bed and the wall of a cylindrical column and evaluation of its parameters. Collection of Czechoslovak Chemical Communications, 1968, 33(10): 1062-1077. https://doi.org/10.1135/cccc19683235

Staněk, V., Kolář, V. Distribution of liquid over a random packing. VIII Distribution of the density of wetting in a packing for an arbitrary type of initial conditions. Collection of Czechoslovak Chemical Communications, 1973, 38(10): 2865-2873. https://doi.org/10.1135/cccc19732865

Semkov, K. Liquid flow distribution in packed beds by multipoint liquid distributors. Chemical Engineering Science, 1991, 46(5/6): 1393-1399. https://doi.org/10.1016/0009-2509(91)85065-6

Stichlmair, J., Stemmer, A. Influence of maldistribution on mass transfer in packed columns. I. Chemical Engineering Progress Symposium Series, 1987, 104(2): B213-B224.

How to Cite
DZHONOVA-ATANASOVA, Daniela Boyanova et al. Liquid distribution in a semi-industrial packed column - experimental and theory. Food Science and Applied Biotechnology, [S.l.], v. 1, n. 1, p. 19-25, mar. 2018. ISSN 2603-3380. Available at: <https://www.ijfsab.com/index.php/fsab/article/view/15>. Date accessed: 22 aug. 2018. doi: https://doi.org/10.30721/fsab2018.v1.i1.15.