The influence of random packed column parameters on the liquid holdup and interfacial area

Abstract

Carbon dioxide capture via solvent absorption in packed columns has emerged as a potential technology to mitigate coal‐fired power plant CO2 emissions. Parameters, including packing types, solvent properties, and operating conditions, could potentially affect the packed column CO2 capture efficiency. To understand the importance of those parameters and help packed column optimization, a design of experiments (DoEs) method was proposed to generate input parameter matrix. Combined with multiphase computational fluid dynamics (CFD), the random packed column parameter influence on the liquid holdup and interfacial area can be efficiently investigated. Surrogate‐based sensitivity analysis shows that the solvent flow rate and contact angle are key factors dictating liquid holdup and interfacial area. On the other hand, solvent viscosity has a marginal impact on the interfacial area. The sensitivity scores were calculated for each input parameter to guide the selection of dimensionless numbers for the liquid holdup and interfacial area correlation development.

New insight and experimental study of ineffective void in hydrodynamic performance of countercurrent‐flow packing column

“…Influence of liquid viscosity on ( H L ): Figure 10 also provides insight into the impact of liquid viscosity on H L , and it can be concluded that the values of H L increase as the liquid viscosity increases. This phenomenon can be attributed to two primary factors: (i) first, increased liquid viscosity leads to greater accumulation of liquid within the packing column, 13,28 and (ii) second, it results in thicker liquid films at the packing necking site. Consequently, a higher liquid viscosity contributes to larger H L values.…”

“…Influence of liquid viscosity on (H L ): Figure 10 packing column, 13,28 and (ii) second, it results in thicker liquid films at the packing necking site. Consequently, a higher liquid viscosity contributes to larger H L values.…”

A Review on Computational Fluid Dynamics Simulations of Industrial Amine Absorber Columns for CO2 Capture

“…Also, the hydrodynamic properties in one, two, and five packed bed MEA columns with interbed liquid distributors were investigated. Fu et al [65] studied the influence of random packed column parameters (including packing types, solvent properties, and operating conditions) on the liquid holdup and interfacial area using CFD. Tab.…”

“…AMT SP-350Y structured packing divided into five beds Uwitonze et al[66] 2021 the impact of offshore operating conditions and that of divided wall column shape with 3D CFD model Fu et al[65] 2022…”