Calculation Procedure for Flooding in Packed Columns Using a Channel Model

TiO2−WOxCoatings on Aluminum Open Cell Foams as Potential Packing Material for Esterification of Glycolic Acid with Ethanol

“…Structured packing can also be catalytically activated by filling up the channels formed by the parallel sheets with catalyst particles as in the case of Katapak; however, the void fractions are then considerably reduced. Depending on the catalytic loadings, these structures have a void fraction ranging between 0.6 and 0.8 with surfaces areas of 120–300 m 2 .m −3 [8,23–25] . These values are considerably lower than the foams presented here, confirming the interest in working with foams.…”

Hydrodynamic and Mass Transfer in the Desorption Process of CO2 Gas in a Packed-Bed Stripper

“…while it has been noted from the data of this paper that the flooding point falls within 0.142-0.181, it is consistent with literature. Further, there is a certain relation between ∆P tot and the F-factor, which is defined below [18]:…”

Review of design correlations for CO2 absorption into MEA using structured packings

“…Brunazzi et al (2009) considered the combined effect of a channel model (for dry pressure drop) and the Buchanan equation (Buchanan, 1969) (for wet pressure drop) for a gas-liquid packed contactor in the flooding region. They mention that considering a fixed value for wet pressure drop at the flooding point (e.g., 1025 Pa/m) may not give the correct gas velocity at flooding, especially at higher liquid loads.…”

“…Even below the loading point the correlations show quite different behavior. If 2 mbar/m is used as a design criterion, we see that the Delft model would allow gas velocities above 2 m/s, whereas Brunazzi et al (2009) model would limit the velocity to below 1.5 m/s. There is a further increase in pressure drop at higher superficial gas velocities as liquid starts filling the packing voids (starting at the bottom of the column).…”