Results 21 to 30 of about 3,203 (299)

Effects of sparger design on the gas holdup and mass transfer in a pilot scale external loop airlift reactor

South African Journal of Chemical Engineering, 2021
Three designs of static spargers were used in a pilot scale external loop airlift reactor to determine their effects on the gas holdup and mass transfer characteristics for an air-water system.
N. Naidoo, W.J. Pauck, M. Carsky
doaj   +1 more source

Pressure gradient prediction of gas-liquid two-phase pipe flow in horizontal gas wells

Shenzhen Daxue xuebao. Ligong ban, 2022
Accurate prediction of pressure gradient in gas wells is the theoretical basis for dynamic analysis, optimization of production and deliquification technologies design.
LUO Chengcheng, WU Ning, WANG Hua, LIU Yonghui, ZHANG Teng, WANG Benqiang, WU Pengbo, LIU Jun   +7 more
doaj   +1 more source

Pressure Drop Hysteresis of Hydrodynamic States in Packed Tower for Foaming Systems [PDF]

, 2011
An experimental investigation was carried out to determine the effects of gas and liquid flow velocities and surface tension on the two-phase phase pressure drop a in a downflow trickle bed reactor. Water and non-Newtonian foaming solutions were employed
Renu Gupta, Vijay Sodhi, Sodhi, Vijay, Gupta, Renu   +3 more
core   +1 more source

The Effect of Solid on the Homogenous- Heterogeneous Transition Region in Baffled and Unbaffled Bubble Column with Non-Newtonian Liquid [PDF]

Engineering and Technology Journal, 2010
This research shows a comprehensive study on the effect of solid loadingand non-Newtonian liquid on the hydrodynamic parameter of gas holdup as wellas the critical values of gas holdup and gas velocity of transition zone fromhomogenous to heterogeneous ...
Asawer A. Alwasiti, Farah T. Alsudany, Shrooq T. Alhemeri   +2 more
doaj   +1 more source

A Hydrodynamic Study in a Sieve Plate Sectionalized Bubble Column [PDF]

Engineering and Technology Journal, 2011
The sectionalization of conventional bubble columns to tray bubble column by perforated trays has been used in chemical, biochemical, and petroleum processes as an effective way to improve the gas-liquid contacting efficiency, and reduce liquid ...
Burhan Sadeq Abdulrazzaq
doaj   +1 more source

Hydrodynamic character of internal-loop airlift reactor

浙江大学学报. 农业与生命科学版, 2003
Gas holdup and liquid circulation velocity are the mostly important hydrodynamic characters and state parameters of internal-loop airlift reactor. In this paper, the influence of gas holdup and liquid circulation velocity on the performance of the ...
LU Gang, ZHENG Ping
doaj   +1 more source

Hydrodynamic Characteristics of a Gas- Liquid –Solid Fluidized Bed Containing a Binary Mixture of Particles [PDF]

Engineering and Technology Journal, 2009
The present work is an experimental study on the effect of solid loading andsolid properties of both single and binary mixtures on the hydrodynamic parameters(gas holdup and bubble dynamics) of a fluidized bed bubble column. The experimentswere performed
Amer A. Abdul Rahman, Mohammed F. Abed, Adiba A .Mahmod   +2 more
doaj   +1 more source

Effect of Electrolyte Concentration on Bubble Size and Gas-Liquid Interfacial Area in Bubble Column

Tikrit Journal of Engineering Sciences, 2005
The optimum conditions of bubble column would be the ones that enhance mass transfer and this is accomplished by maximizing gas-liquid interfacial area. In the present work the effect of electrolyte concentration (aqueous solution of sodium chloride NaCl
Farah T. Jassem
doaj   +1 more source

Computational Fluid Dynamics Simulation and Experimental Measurement of Gas and Solid Holdup Distributions in a Gas-Liquid-Solid Stirred Reactor

, 2015
The lack of convincing computational fluid dynamics models and basic experimental data makes it difficult to design and scale up a gas liquid solid three-phase stirred reactor such as in environmentally benign bioleaching processes.
Bin Ma (219839), Shifang Yang (1455586), Xiangyang Li (162313), Shifang Yang, Li, Xiangyang, Bin Ma, Chao Yang (174810), Yang, Shifang, Chao Yang, Zai-Sha Mao, Yang, Chao, Mao, Zai-Sha, Xiangyang Li, Ma, Bin, Zai-Sha Mao (1455589)   +14 more
core   +1 more source

Modeling gas holdup in a multiphase oxygen slurry bubble column reactor for Cu-Cl hydrogen production using CFD

Results in Engineering
The hydrodynamics of the oxygen bubble column reactor is investigated numerically using CFD analyses to predict the values of the gas holdup using Eulerian model and k−ε turbulence method.
M.W. Abdulrahman
doaj   +1 more source