Experimental investigation of pressure drop, liquid hold-up and mass transfer parameters in a 0.5 m diameter absorber column

Zakeri, Ali; Einbu, Aslak; Wiig, Per Oscar; Øi, Lars Erik; Svendsen, Hallvard F.

doi:10.1016/j.egypro.2011.01.095

Cited by 22 publications

(10 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the constant holdup area, the gas flow rate does not have a great influence on the liquid holdup, whereas in the carrier zone, the liquid holdup increases sharply with an increasing gas flow rate. These results are in agreement with the trends reported in the literature . It can be concluded that the dynamic liquid holdup is mainly influenced by liquid flow rate as well as the structure and size of packing under the load point.…”

Section: Resultssupporting

confidence: 92%

“…Thus, it can be concluded that the chemical reaction is a key and important factor on the hydromechanical performance for Sulzer DX Structured Packing. This result is opposite with the work of Zakeri et al who investigated the hydromechanical performance using air‐water and reactive MEA system in Montz B1‐250 M column.…”

Section: Resultscontrasting

confidence: 90%

“…As stated by Rocha et al, dry pressure drop is proportional to F ‐factor in the packed column. Experimental results by Zakeri et al also confirmed this phenomenon. It can be observed, from Figure , that the dry pressure drop is linear with the F ‐factor.…”

Section: Resultsmentioning

confidence: 66%

“…In general, the liquid holdup includes the static liquid holdup and the dynamic liquid holdup in a wet packed column. According to the literature, the static liquid holdup is defined as the liquid residue in the pores and gaps of the packing after drainage caused by capillary forces and adhesion which relates to the physical properties of the liquid (i.e., density, viscosity, and surface tension), liquid load, acceleration due to gravity, and the characteristic properties of the packing (packing surface and void fraction). On the other hand, dynamic liquid holdup, which is the amount of the liquid effectively participating in the liquid flow through the packing during operation, is affected by operational parameters, such gas liquid flow rate and gas flow rate .…”

Section: Resultsmentioning

confidence: 99%

See 3 more Smart Citations

Investigation of hydrodynamic performance and effective mass transfer area for Sulzer DX structured packing

et al. 2018

View full text Add to dashboard Cite

The hydrodynamic performance in terms of pressure drop (▵P) and liquid holdup (hL), and tshe effective mass transfer area (ae) of Sulzer DX structured packing were investigated at 293.15 K and 101.3 kPa. In addition, the flooding velocity (uF) was also calculated based on the experimental results of liquid holdup, and the effective voidage correction factor (ς) was obtained by combining the Billet model and the experimental effective fraction. The liquid volume method and pressure difference from just below to above the column packing approach are used to describe the hydrodynamic performance in a structured packing column. Experimental results showed that the operational conditions in terms of gas flow rate, liquid flow rate, viscosity, and liquid systems strongly affect the hydrodynamic performance. The experimental comparison between the pressure drop profiles in air‐water (polyethylene oxide [PEO]) and MEA‐H2O‐CO2 systems indicated that both the reacting MEA and CO2 partial pressure can enhance the pressure drop value. In addition, the Bain‐Haugen correlation model was developed to predict the flooding velocity data with an acceptable AARD of 8.1%, and a model was also successfully proposed to predict the values of liquid holdup with an AARD of 11.8%, which is lower than 14.7% in Billet model. Furthermore, the effective mass transfer area was found to be increased by increasing both the liquid and gas flow rate by using NaOH‐H2O‐CO2 system. A model was also proposed to calculate the experimental ae with an acceptable AARD% of 19.52, and this built model (Eq. 39) can reasonably explain the experimental phenomenon. © 2018 American Institute of Chemical Engineers AIChE J, 64: 3625–3637, 2018

show abstract

Section: Resultssupporting

confidence: 92%

Section: Resultscontrasting

confidence: 90%

Section: Resultsmentioning

confidence: 66%

Section: Resultsmentioning

confidence: 99%

See 2 more Smart Citations

Investigation of hydrodynamic performance and effective mass transfer area for Sulzer DX structured packing

et al. 2018

View full text Add to dashboard Cite

show abstract

“…In this operation, the liquid and gas phases are contacted for the purpose of getting one or more components from a gas mixture dissolved (absorbed) in the liquid (1). Absorption, as well as liquid-liquid extraction, is most often performed in devices of the column type (2)(3)(4). Columns are, usually, countercurrent gas-liquid contactors in which gas flows upward and liquid downward.…”

Section: Introductionmentioning

confidence: 99%

Packed bed absorption column: Hydrodynamics and mass transfer

et al. 2019

View full text Add to dashboard Cite

This paper presents the results of the determination of the hydrodynamic characteristics and mass transfer in the pilot plate absorption column. The experimental values of the pressure drop in the countercurrent flow of air and water through the column were obtained. The graphic dependence of the pressure drop of air per unit height of the layer of packing (ΔP/h) on the apparent air velocity (Ug) through the dry charge was shown to be in the form of a quadratic function. From the graphical function which shows the dependence of the pressure drop per unit height of the layer of filling (ΔP/m) on the apparent air velocity during the countercurrent flow of the phases (water and air), three fields of the interaction of the phases were observed: a) the area of low load, at low apparent air velocities, b) the area of high load, at higher air velocities, and c) the flooding area, when the liquid completely fills the cavities and the working gas in them starts bubbling. The overall mass transfer coefficient (Kg) of the air-CO 2-water system depends on the flow rate of the gaseous phase and the composition of the starting gas mixture (air-CO 2). With the increase in the total gas flow rate, with a constant composition of the starting gas mixture and constant fluid flow, the overall mass transfer coefficient increases. Increasing the amount of CO 2 in the starting gas mixture at a constant flow rate of fluid and a constant ratio of the molar flow of the inert in the liquid and the gas-phase (L'/G') decreases the overall mass transfer coefficient.

show abstract

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

Azari

2022

ChemBioEng Reviews

View full text Add to dashboard Cite

CO 2 emission is an important environmental issue leading to global climate change, notably an increase in global temperatures; therefore, it is so imperative to reduce CO 2 emissions to the atmosphere. Absorption columns using amine-based solutions are a promising approach for CO 2 removal from industrial gas streams. Many modeling and simulation research have been performed on CO 2 absorption columns in which computational fluid dynamics (CFD) strategy is very appropriate and well-known. As CFD modeling and simulation is a fast-developing method, the most recent review papers do not include the core research in this field of study. In this study, numerical simulations of CO 2 absorption columns using CFD strategy have been carried out applying various types of aminebased solutions. Furthermore, the effect of various types of packing mesh generation on the absorption columns' efficiency was studied. Investigation of synergetic influence such as application of various nanoparticles in different amine-based solutionsand activators, double diameter packed bed absorption columns with different packings, rotating packed columns with double diameter are proposed for future studies.

show abstract

Experimental investigation of pressure drop, liquid hold-up and mass transfer parameters in a 0.5 m diameter absorber column

Cited by 22 publications

References 10 publications

Investigation of hydrodynamic performance and effective mass transfer area for Sulzer DX structured packing

Investigation of hydrodynamic performance and effective mass transfer area for Sulzer DX structured packing

Packed bed absorption column: Hydrodynamics and mass transfer

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

Contact Info

Product

Resources

About

Experimental investigation of pressure drop, liquid hold-up and mass transfer parameters in a 0.5 m diameter absorber column

Cited by 22 publications

References 10 publications

Investigation of hydrodynamic performance and effective mass transfer area for Sulzer DX structured packing

Investigation of hydrodynamic performance and effective mass transfer area for Sulzer DX structured packing

Packed bed absorption column: Hydrodynamics and mass transfer

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

Contact Info

Product

Resources

About

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