Results 11 to 20 of about 897 (263)

Influence of the geometry on the riser gas holdup in an external-loop airlift reactor: empirical and neural network modelling [PDF]

open access: yesActa Periodica Technologica, 2018
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 addition
Lukić Nataša Lj., Jokić Aleksandar I.
doaj   +1 more source

Gas holdup in a reciprocating plate bioreactor: Non-Newtonian - liquid phase [PDF]

open access: yesHemijska Industrija, 2002
The gas holdup was studied in non-newtonian liquids in a gas-liquid and gas-liquid-solid reciprocating plate bioreactor. Aqueous solutions of carboxy methyl cellulose (CMC; Lucel, Lučane, Yugoslavia) of different degrees of polymerization (PP 200 and PP ...
Naseva Olivera S.   +5 more
doaj   +1 more source

Fluid Dynamic in Bubble Columns with Heat Exchanger Internals [PDF]

open access: yesEngineering and Technology Journal, 2014
The effects of vertical cooling internals on the gas hydrodynamics was studied in gas-liquid system (bubble columns) for column diameters, 15 and 30 cm in the absence and presence of internals (the % occluded area by internals 5, 10, and 20%).
Burhan Sadeq Abdulrazzaq
doaj   +1 more source

EFFECT OF KINDS OF GAS ON GAS HOLDUP IN BUBBLE COLUMNS

open access: yesChemical Engineering Transactions, 2009
Not available.
Fukuji Yamashita, Tatsuma Fukaura
openaire   +2 more sources

Gas Holdup Distribution in a Coaxial Mixer Containing Yield-Pseudoplastic Fluids: Effect of Biopolymer Concentration

open access: yesEngineering Proceedings, 2023
The performance of gas-liquid mixing processes in agitated vessels is commonly measured by the degree of gas dispersion, and local measurements of this parameter can provide a more accurate description of the mixing, especially for non-Newtonian fluids ...
Paloma L. Barros   +2 more
doaj   +1 more source

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

open access: yesSouth 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

open access: yesShenzhen 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   +7 more
doaj   +1 more source

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

open access: yesEngineering 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   +2 more
doaj   +1 more source

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

open access: yesEngineering 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

Effect of Surfactants on Gas Holdup in Shear-Thinning Fluids

open access: yesInternational Journal of Chemical Engineering, 2017
In this study, the gas holdup of bubble swarms in shear-thinning fluids was experimentally studied at superficial gas velocities ranging from 0.001 to 0.02 m·s−1.
Shaobai Li, Siyuan Huang, Jungeng Fan
doaj   +1 more source

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