منابع مشابه
Mass Transfer Studies in Shallow Bubble Column Reactors
Mass transfer studies are carried out in a bubble column with an internal diameter of 14 cm and various static liquid heights. The mass transfer coefficient is evaluated by using an oxygen sorption method. A model considering the gas holdup flushing and the sensor response is used. The interfacial mass transfer area is determined according to the measured bubble size distribution. The liquid-si...
متن کاملTheoretical Prediction of Mass Transfer Coefficients in a Slurry Bubble Column Operated in the Homogeneous Regime
The classical penetration theory was corrected and then applied for the semi-theoretical prediction of mass transfer coefficients kLa in a slurry bubble column operated in the homogeneous regime. The gas-liquid contact time was expressed as a ratio of bubble surface to the rate of surface formation. These terms were defined for the case of oblate ellipsoidal bubbles formed under homogeneous flo...
متن کاملMass Transfer Coefficients in Batch and Continuous Regime in a Bubble Column
The physical absorption has been experimentally investigated in a bubble column for to determination of volumetric mass transfer coefficients referred to the liquid phase, kLa, and quantify the effect of the viscosity of the absorbent solution on the same, operating in continuous and batch regime with respect to the liquid phase. The variables studied in the process have been the physical prope...
متن کاملDetailed modeling of hydrodynamics, mass transfer and chemical reactions in a bubble column using a discrete bubble model
A 3D discrete bubble model is adopted to investigate complex behavior involving hydrodynamics, mass transfer and chemical reactions in a gas–liquid bubble column reactor. In this model a continuum description is adopted for the liquid phase and additionally each individual bubble is tracked in a Lagrangian framework, while accounting for bubble–bubble and bubble–wall interactions via an encount...
متن کاملMass Transfer of So2 Absorption with an Instantaneous Chemical Reaction in a Bubble Column
Gas absorption accompanied by an instantaneous irreversible chemical reaction in bubble columns has been analyzed theoretically. A mass transfer model based on the Dankwerts surface-renewal model as well as the penetration theory for surface stretch proposed by Angelo et al. was developed, in which the effects of bulk motion and turbulence on mass transfer were taken into account. The analytica...
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ژورنال
عنوان ژورنال: JOURNAL OF CHEMICAL ENGINEERING OF JAPAN
سال: 1979
ISSN: 0021-9592,1881-1299
DOI: 10.1252/jcej.12.105