Journal ArticleDOI
Organic liquids in a bubble column: Holdups and mass transfer coefficients
TLDR
In this article, gas holdups and volumetric mass transfer coefficients kLa are studied in a bubble column of 0.095 m dia with 50 different gas-liquid systems comprising pure and mixed organic liquids and various gases.Abstract:
Gas holdups and volumetric mass transfer coefficients kLa are studied in a bubble column of 0.095 m dia. with 50 different gas-liquid systems comprising pure and mixed organic liquids and various gases. The gas holdups measured in pure organic liquids can be represented by existing correlations but the values in liquid mixtures are high. On the other hand, all mass transfer coefficients can be correlated uniformly by a new dimensionless equation, with 13.3% mean error.read more
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Journal ArticleDOI
Bubble column reactors
TL;DR: In this article, the authors present a review of bubble columns and their application, description, design and operation, application areas, fluid dynamics and regime analysis encountered and parameters characterizing the operation.
Journal ArticleDOI
Improved tools for bubble column reactor design and scale-up☆
W.-D. Deckwer,Adrian Schumpe +1 more
TL;DR: In this article, the present status of estimating gas hold-ups, mass transfer and mixing coefficients of bubble columns is reviewed, and specific recommendations are given for their application, based on proven correlations and recent improvements.
Journal ArticleDOI
Slurry Reactors for Gas-to-Liquid Processes: A Review
Tiefeng Wang,Jinfu Wang,Yong Jin +2 more
TL;DR: A review of the recent studies on the slurry reactor for gas-to-liquid processes is given in this paper, with focus on the new trend of coupling the population balance model (PBM) into the computational fluid dynamics (CFD) framework to describe the complex bubble behaviors and gas-liquid interphase interactions.
Journal ArticleDOI
A model for gas holdup in bubble columns incorporating the influence of gas density on flow regime transitions
TL;DR: In this article, the influence of increased gas density on the gas holdup in bubble column reactors was analyzed and a simple model for describing the holdup was also proposed, showing that the major effect of increasing gas density is to stabilize the regime of homogeneous bubble flow and, consequently, to delay the transition to the churn-turbulent flow regime.
Journal ArticleDOI
Mass-transfer and bubble-size in a bubble-column under pressure
TL;DR: In this article, the influence of pressure on the gas hold-up in a bubble column is determined for a sodium sulphite solution in combination with the volumetric mass transfer coefficient.
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