Modeling Fluid Distribution in Layers of Structured Packing with Triangular and Trapezoidal Corrugation

• Published in: Chemical and petroleum engineering 2021-11, Vol.57 (7-8), p.656-664
• Main Authors: Klykov, M. V., Alushkina, T. V., Hasanov, R. G.
• Format: Article
• Language: English
• Subjects: Accessories and Devices; Anisotropy; Chemistry; Chemistry and Materials Science; Diffusion; Feeders; Flow velocity; Geotechnical Engineering & Applied Earth Sciences; Industrial Chemistry/Chemical Engineering; Industrial Pollution Prevention; Liquid flow; Mass transfer; Mineral Resources; Minimum flow; Spraying
• ISSN: 0009-2355; 1573-8329
• DOI: 10.1007/s10556-021-00988-9

The article presents the results of modeling fluid distribution in mass transfer apparatuses with structured packing made of corrugated grid strips using the Poisson solution of the diffusion problem. Considering that the distribution of the fluid stops when the minimum flow rate of the liquid is reached, a numerical solution of the anisotropic diffusion model of the distribution of the liquid under multipoint spraying is obtained. The solutions of a diffusion model having unlimited distribution and one in which distribution ceases at achievement of minimum liquid flow rate coincide when the maximum flow rate exceeds the flow rate of the liquid at which the distribution stops by more than ten times. With an increase in the liquid distribution coefficients, other things being equal, the volume of the packing not wetted by the spray decreases. The simulation results are presented in the form of graphical dependencies that may be useful in the development of structured packing feeders, taking into account the anisotropy of their properties.