Influence of the size of heat exchanging internals on the gas holdup distribution in a bubble column using gamma-ray computed tomography
Sign Up to like & getrecommendations! Published in 2018 at "Chemical Engineering Science"
DOI: 10.1016/j.ces.2018.04.021
Abstract: Abstract The effects of the presence of the vertical internals of different sizes at a wide range of superficial gas velocity on the overall, local gas holdup distributions and their profiles have been studied and… read more here.
Keywords: vertical internals; column; gas; bubble column ... See more keywords
Experimental analysis of gas phase dynamics in a lab scale bubble column operated with deionized water and NaOH solution under uniform bubbly flow conditions
Sign Up to like & getrecommendations! Published in 2021 at "Chemical Engineering Science"
DOI: 10.1016/j.ces.2020.116056
Abstract: Abstract In this study we present an investigation on the impact of sparger configuration and fluid properties on the local gas phase dynamics for up to 17% total gas holdup. Experiments in a bubble column… read more here.
Keywords: phase dynamics; gas; bubble column; gas holdup ... See more keywords
Gas holdup and liquid velocity distributions in the up flow jet-loop reactor
Sign Up to like & getrecommendations! Published in 2018 at "Chemical Engineering Research and Design"
DOI: 10.1016/j.cherd.2018.05.005
Abstract: Abstract Hydrodynamics in an up flow jet-loop reactor (JLR) is experimentally investigated. The overall gas holdup, radial and axial distributions of local gas holdup and liquid velocity are presented. A modified drift-flux model was developed… read more here.
Keywords: gas holdup; liquid velocity; holdup liquid; gas ... See more keywords
The effect of aspect ratio in counter-current gas-liquid bubble columns: Experimental results and gas holdup correlations
Sign Up to like & getrecommendations! Published in 2017 at "International Journal of Multiphase Flow"
DOI: 10.1016/j.ijmultiphaseflow.2017.04.015
Abstract: Abstract It is generally admitted that the gas holdup is independent of the column dimensions and gas sparger design if three criteria are satisfied: the diameter of the bubble column is larger than 0.15 m, gas… read more here.
Keywords: gas holdup; aspect ratio; gas; counter current ... See more keywords
A new approach to measure gas holdup in industrial flotation machines part I: Demonstration of working principle
Sign Up to like & getrecommendations! Published in 2018 at "Minerals Engineering"
DOI: 10.1016/j.mineng.2018.01.001
Abstract: Abstract A new approach for continuous measurement of gas holdup, based on the generation and measurement of a bubble-free pulp flow using a gas-exclusion cell immersed in the collection zone of industrial flotation machines is… read more here.
Keywords: industrial flotation; gas holdup; new approach; gas ... See more keywords
CFD analysis of solid particles properties effect in three-phase flotation column
Sign Up to like & getrecommendations! Published in 2017 at "Separation and Purification Technology"
DOI: 10.1016/j.seppur.2017.04.042
Abstract: Abstract A Computational Fluid Dynamics (CFD) model of flotation column was developed and validated against published experimental data. The model is based on an Eulerian multi-fluid formulation with k – ɛ turbulence model and includes… read more here.
Keywords: gas holdup; flotation column; model; gas ... See more keywords
Gas Dispersion Characteristics in a Novel Jet-Stirring Coupling Flotation Device
Sign Up to like & getrecommendations! Published in 2022 at "ACS Omega"
DOI: 10.1021/acsomega.2c00313
Abstract: A jet-stirring coupling flotation device (JSCFD) was proposed to analyze the distribution characteristics of gas holdup and bubble Sauter mean diameter (D32) in a gas–liquid system under various parameters. Results of studies suggested that the… read more here.
Keywords: gas; flotation; gas holdup; jet stirring ... See more keywords
Gas Holdup in Bubble Column Bioreactor Degrading Phenol
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Hazardous, Toxic, and Radioactive Waste"
DOI: 10.1061/(asce)hz.2153-5515.0000337
Abstract: AbstractPhenol is a harmful substance found in the wastewaters from certain chemical industries. In the present study phenol present in synthetic wastewater has been biodegraded in a bubble column bioreactor using Pseudomonas putida (NCIM-2650). Experiments… read more here.
Keywords: column bioreactor; gas; phenol; bubble column ... See more keywords
Experimental investigation and its analysis of gas holdup in a three-phase counter-current microstructured bubble column
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Dispersion Science and Technology"
DOI: 10.1080/01932691.2020.1839480
Abstract: Abstract The present work investigates the gas holdup in a three-phase counter-current microstructured bubble column with and without the presence of surfactant. The coal (specific gravity 1.4) was taken to prepare slurry (a mixture of… read more here.
Keywords: holdup three; phase; column; gas holdup ... See more keywords
Study on Optical Fiber Gas-Holdup Meter Signal Denoising Using Improved Threshold Wavelet Transform
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Access"
DOI: 10.1109/access.2023.3247575
Abstract: The optical fiber probe gas-holdup meter is a new logging tool, which can be used to measure the gas-holdup of oil-gas-water three-phase flow during production logging. In this paper, the wavelet transform is used to… read more here.
Keywords: gas; wavelet; gas holdup; optical fiber ... See more keywords
Influence of the geometry on the riser gas holdup in an external-loop airlift reactor: empirical and neural network modelling
Sign Up to like & getrecommendations! Published in 2018 at "Acta Periodica Technologica"
DOI: 10.2298/apt1849093l
Abstract: Experimental studies on the effect of geometrical characteristics (restriction orifice free area and sparger configuration) on the riser gas holdup of an external-loop airlift reactor have been conducted in this paper. The impact of the… read more here.
Keywords: gas holdup; geometry; riser gas; gas ... See more keywords