Results 11 to 20 of about 12,251 (259)

Scale Effects on the Hydrodynamics of Bubble Column [PDF]

open access: yesEngineering and Technology Journal, 2009
The main object of this study is to investigate the influence of the columngeometric and operating variables ( i.e., column diameter, superficial gas velocityand liquid viscosity) on the hydrodynamic parameter ( i.e.
Farah S. Jameel, Mohammad F. Abid
doaj   +1 more source

Hydrodynamics of pulsed sieve-plate extraction columns [PDF]

open access: yesHemijska Industrija, 2020
This paper presents a review of some hydrodynamic parameters in pulsed sieve-plate extraction columns. The hydrodynamic parameters in liquid-liquid systems in these columns were analyzed regarding the effects of operating and geometrical parameters.
Sovilj Milan N.   +1 more
doaj   +1 more source

Solid diffusion control of the adsorption of basic dyes onto granular activated carbon and natural zeolite in fixed bed columns [PDF]

open access: yesJournal of the Serbian Chemical Society, 2001
The adsorption of basic dyes from aqueous solutions onto granular activated carbon and natural zeolite was studied using a fixed bed column. The design procedures for fixed bed adsorption columns were investigated for two basic dyes Maxilon Goldgelb GL ...
M. MARINKOVSKI   +3 more
doaj   +3 more sources

Liquid-Phase Back mixing in Bubble Columns

open access: yesTikrit Journal of Engineering Sciences, 2010
Liquid-phase axial dispersion coefficients have been measured for air-water system in bubble columns of 10, 15 and 30 cm diameter. The experiments are carried out using a transient method (the tracer response method).
Burhan S. Abdulrazzaq
doaj   +1 more source

Gas Holdup and Liquid-Phase Dispersion in Packed Bubble Columns

open access: yesTikrit Journal of Engineering Sciences, 2011
The gas holdup and liquid phase axial dispersion coefficient are measured in two semi batch packed bubble columns, 10 and 15 cm diameter for an air–water system, at atmospheric conditions.
Burhan Sadeq Abdulrazzaq
doaj   +1 more source

Hydrodynamics in spray and packed liquid-liquid extraction columns: A review

open access: yesMacedonian Journal of Chemistry and Chemical Engineering, 2019
This work provides a review of hydrodynamic characteristics such as the slip velocity, the dispersed-phase holdup, mean drop size, and axial dispersion of non-mechanically agitated liquid-liquid (L-L) extractors, with special reference to spray and ...
Milan N. Sovilj   +2 more
doaj   +1 more source

Axial dispersion of the liquid phase on a three-phase Karr reciprocating plate column [PDF]

open access: yesJournal of the Serbian Chemical Society, 2004
The influence of the gas flow rate and vibration intensity in the presence of the solid phase (polypropylene spheres) on axial mixing of the liquid phase in a three phase (gas-liquid-solid) Karr reciprocating plate column (RPC) was investigated. Assuming
Nikolić Ljubiša B.   +4 more
doaj   +1 more source

Non-linear Radiation and Navier-slip effects on UCM Nanofluid ‎Flow past a Stretching Sheet under Lorentzian Force [PDF]

open access: yesJournal of Applied and Computational Mechanics, 2021
In the present article, the novel contributions are modelling of Upper convected Maxwell nanoflow under Lorentzian influence over a stretching surface and investigating it using bvp4c procedure with MATLAB software.
P. Sreenivasulu   +4 more
doaj   +1 more source

THE DEVELOPMENT OF TECHNICAL MEANS TO UPDATA, RESTORE AND TO RESERVE THE MAPS. AS APPLICATION: THE BASE MAP OF ENGINEERING COLLEGE IN DIYALA UNIVERSITY

open access: yesDiyala Journal of Engineering Sciences, 2010
A complete model of liquid-phase dispersion was used to simultaneously characterize axial and radial mixing in bubble column of 0.15 m inside diameter and plastic plate distributor with holes of 2 mm diameter.
Nada Mohammed Salih
doaj   +1 more source

CFD analysis and flow model reduction for surfactant production in helix reactor [PDF]

open access: yesChemical Industry and Chemical Engineering Quarterly, 2015
Flow pattern analysis in a spiral Helix reactor is conducted, for the application in the commercial surfactant production. Step change response curves (SCR) were obtained from numerical tracer experiments by three-dimensional computational fluid
Nikačević N.M.   +3 more
doaj   +1 more source

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