Discrete bubble modeling for a micro-structured bubble column

Numerical modeling of carbon dioxide chemisorption in sodium hydroxide solution in a micro-structured bubble column

“…For mass transfer with consecutive reactions, the chemisorption model and the species transport equations from the work of Darmana et al (2007) are included. Micro-structuring in the column is implemented as in Jain et al (2013) and is extended here to a column with multiple staged wire-meshes. The basic ingredients of the complete model will be presented in more detail in the subsequent subsections.…”

“…Höller et al (2001) reported that a tenfold increase in the mass transfer rate can be achieved by staging such fibrous structures in the bubble column. Jain et al (2013) have proposed the micro-structuring in the column to study the effect of bubble cutting with wires. The effect of cutting is studied computationally using an in-house developed discrete bubble model (DBM).…”

“…Trickle bed reactors possess reasonable to good mass transfer characteristics but poor mixing and heat transfer. The "ideal" reactor combines the advantages of both the reactor types mentioned above, a novel type of reactor is proposed in Jain et al (2013): a micro-structured bubble column (MSBC).…”

Two-Phase Bubble Columns: A Comprehensive Review

“…Among the available modeling techniques, the Eulerian multi-fluid approach is the most common approach for simulating bubble column reactors, as reported in the review of Jakobsen et al [395]. Different studies have applied the Eulerian-Lagrangian approach [396][397][398][399][400][401] but have still been limited to the simulation of small-scale reactors with low ε G . It is worth noting that, at present, it is possible to model the flow regimes listed in Section 2.2.1 by using different modeling approaches (see the discussion below); unfortunately, a comprehensive model, able to simulate the whole range of operating conditions in bubble columns, is still missing.…”

Modeling of Gas-Steel-Slag Three-Phase Flow in Ladle Metallurgy: Part II. Multi-scale Mathematical Model

“…Hengel et al 17) applied coalescence and breakup models in a Lagrangian discrete bubble model (DBM) and validated it against the experimental PIV data of Deen et al 18) The DBM shows an effective capability for modeling micro-structured bubble columns in reactors. 19) Li et al 20,21) investigated the transient flow features and bubble-liquids interactions in ladle using the VOF-DPM method and the large eddy simulation (LES) approach with and without considering bubble aggregation, bubbles are removed after the contact with air and the results are qualitatively compared with the experiment. From observation of slag layer fluctuation, large deformation and spout eye formation, a transient complex turbulent multiphase phenomenon is found.…”