Results 21 to 30 of about 10,227,551 (246)

Absorption in a three-phase fluidized bed I: Hydrodynamic investigations [PDF]

open access: yesHemijska Industrija, 2003
The hydrodynamic properties of a three phase fluidized bed with low density inert spherical packing, fluidized by the interaction of a gas flowing upwards and a liquid flowing downwards through the column, were investigated.
Pejanović Srđan M.
doaj   +1 more source

Gas hold-up profiles determination by means of ultrasonic transducer [PDF]

open access: yes, 2014
This paper details a work carried out to measure gas hold-up profiles in a liquid column using a pair of ultrasonic transducer. The gas hold-up profiles from 1.85 mm to 7.7 mm diameter are of interest in this investigation.
Fazril Zayadi
core   +4 more sources

EXPERIMENTAL STUDY OF LIQUID DISPERSION IN BUBBLE COLUMN

open access: yesDiyala Journal of Engineering Sciences, 2008
The main object of this study is to investigate the influence of column diameter and superficial gas velocity on liquid phase dispersion coefficients (axial and radial dispersion coefficients), mixing times, gas holdup, and bubble dynamics (bubble ...
Hayder Abd Al-kaream Muhsin
doaj   +1 more source

Gas-liquid mass transfer : influence of sparger location [PDF]

open access: yes, 2004
The performance of three sparger diameters (DS = 0.6D, DS = D, DS = 1.6D) in combination with three positions (below, above or level with the impeller) for gas-liquid dispersion and mass transfer were evaluated in the case of the Rushton turbine and the ...
Poux, Martine   +3 more
core   +1 more source

Floating Membrane Bioreactors with High Gas Hold-Up for Syngas-to-Biomethane Conversion

open access: yesEnergies, 2019
The low gas-to-liquid mass transfer rate is one of the main challenges in syngas biomethanation. In this work, a new concept of the floating membrane system with high gas hold-up was introduced in order to enhance the mass transfer rate of the process ...
Konstantinos Chandolias   +2 more
doaj   +1 more source

Study on the Causes of Water Blocking Damage and Its Solutions in Gas Reservoirs with Microfluidic Technology

open access: yesEnergies, 2022
The water blocking damage to the reservoir caused by the invasion of external fluid is one of the main factors that affect the efficient development of tight sandstone gas reservoirs.
Fengguo He, Jie Wang
doaj   +1 more source

Investigation of the Gas-Liquid Flow in an Agitated Vessel Equipped with an ASI Impeller by Using Tomography Method [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2020
In this study, the hydrodynamics of the gas dispersion in an aerated vessel equipped with a newly designed impeller (ASI impeller), a combination of the pitched blade turbine and the Scaba impeller was investigated.
Fariba Khalili   +3 more
doaj   +1 more source

Mass transfer in bubble column for industrial conditions—effects of organic medium, gas and liquid flowrates and column design [PDF]

open access: yes, 2005
Most of available gas–liquid mass transfer data in bubble column have been obtained in aqueous media and in liquid batch conditions, contrary to industrial chemical reactor conditions.
Billet, Anne-Marie   +4 more
core   +1 more source

Physical and mathematical modeling of phenomena proceeding with gas – powder two phase flow through moving packed bed in metallurgical shaft furnaces [PDF]

open access: yesMetalurgija, 2011
Physical and chemical processes in shaft furnaces proceeds in counter – current system. Reacting gas carrying powders flows up in packed bed of descending metallurgical materials. In this system the problem of bed particles hanging up appears.
B. Panic
doaj  

CFD-PBM Approach with Different Inlet Locations for the Gas-Liquid Flow in a Laboratory-Scale Bubble Column with Activated Sludge/Water

open access: yesComputation, 2017
A novel computational fluid dynamics-population balance model (CFD-PBM) for the simulation of gas mixing in activated sludge (i.e., an opaque non-Newtonian liquid) in a bubble column is developed and described to solve the problem of measuring the ...
Le Wang   +3 more
doaj   +1 more source

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