Results 31 to 40 of about 580 (146)

Using X-ray computed tomography to measure local gas holdup in a stirred tank reactor

, 2006
Gas holdup is one of the most important hydrodynamic parameters needed for reliable design, performance estimation, and scale-up of stirred tank reactors (STRs).
Ford, Jason
core   +1 more source

Study on gas holdup in a fluidized flotation column from bed pressure drop

, 2018
This paper investigated the overall gas holdup characteristics in a cocurrent three-phase fluidized flotation column with liquid as the continuous phase. The air, water, and glass beads with a diameter of 3 mm were, respectively, used as the gas, liquid,
Yanfeng Li (113424), Ningbo Li (1608799), Hao Pan (173271), Xiaoqing Fu (4246648), Rongtao Zhu (5428151), Fuliang Gao (5428148), Geoffrey Evans (5428145)   +6 more
core   +1 more source

Numerical Investigation into Effects of Gas Sparger and Horizontal Baffles on Hydrodynamics of Flat Bubble Column

ChemEngineering
Computational fluid dynamics (CFD) was used to investigate influence of different gas sparger configurations and the presence of horizontal baffles on hydrodynamic characteristics in a flat bubble column. CFD results of time-averaged local and global gas
Masroor Abro, Imran Nazir Unar, Junaid Korai, Abdul Qudoos, Sikandar Almani, Abdul Qadeer Laghari, Liang Yu, Abdul Sattar Jatoi   +7 more
doaj   +1 more source

Effect of hydrodynamics on mass transfer in a gas-liquid oscillatory baffled column

, 2004
In this paper, we present an experimental study on mass transfer of oxygen into water in an oscillatory baffled column (OBC). The objective of this work is to establish the contribution of individual parameters, such as the size of bubbles and the gas ...
Ni, X., Oliveira, Monica, Ni, Xiong-Wei; id_orcid   +2 more
core   +1 more source

CFD-PBM Coupled Simulation of an Airlift Reactor with Non-Newtonian Fluid

Oil & Gas Science and Technology, 2017
Hydrodynamics of an AirLift Reactor (ALR) with tap water and non-Newtonian fluid was studied experimentally and by numerical simulations. The Population Balance Model (PBM) with multiple breakup and coalescence mechanisms was used to describe bubble size
Han Mei, Sha Zuoliang, Laari Arto, Koiranen Tuomas   +3 more
doaj   +1 more source

Gas Holdup and Flow Regime in a Bubble Column that Includes Enhanced Oil Recovery Chemicals

, 2021
Chemical enhanced oil recovery (EOR) methods are alternatives to increase oil production in mature reservoirs. However, the presence of EOR chemicals in the produced water may impact the separation of gas-water systems in oil platforms.
Medronho, Ricardo, Heindel, Theodore, Klein, Tania, Orlando, Aloisio, Barca, Luiz   +4 more
core  

Gas Holdup and liquid Phase RTD Studies in Multistage Bubble Columns

Journal of Engineering and Sustainable Development, 2012
Installation of perforated sieve plates into a bubble column has the effect of introducing structure into an otherwise chaotic hydrodynamic behavior.
Burhan Sadeq Abdulrazzaq
doaj  

Numerical investigation of gas holdup and phase mixing in bubble column reactors

, 2011
A discrete bubble model (DBM) has been used to study the overall gas holdup and the phase mixing in bubble column reactors. The Eulerian–Lagrangian approach has the advantage that it is possible to study the overall gas holdup and the gas phase mixing in
Kuipers, J.A.M.; id_orcid, Kuipers, JAM Hans, Deen, N.G., Bai, W., Deen, NG Niels, Kuipers, J.A.M., Wei Bai, Niels G. Deen, J. A. M. Kuipers, Bai, W, Deen, N.G.; id_orcid   +10 more
core   +1 more source

Effect of Lateral Trajectory on Two-Phase Flow in Horizontal Shale Gas Wells

, 2023
Horizontal gas wells are one of the key technologies for the production of shale gas reservoirs. Compared with conventional gas reservoirs, horizontal shale gas wells have ultra-long and complex lateral sections. Overall, toe-up, toe-down, and horizontal
Jian Yang, Bochun Li, Yang Peng, Jiaxiao Chen   +3 more
core   +1 more source

GAS HOLDUP AND AXIAL LIQUID DISPERSION IN THREE PHASE BUBBLE COLUMNS

Journal of Engineering and Sustainable Development, 2015
Axial liquid dispersion coefficient was studied in air-tap water systems (bubble columns) and air-tap water-PVC solid particles systems for different column diameters, 10, 15, and 30 cm, Each column had a gas distributor plate with perforated holes of
Burhan Sadeq Abdulrazzaq
doaj