A method for evaluation of mass transfer coefficients in the different regions of air lift reactors

J. C. Merchuk; G. Osemberg; M. Siegel; M. Shacham

doi:10.1016/0009-2509(92)87038-R

A method for evaluation of mass transfer coefficients in the different regions of air lift reactors

J. C. Merchuk, G. Osemberg, M. Siegel, M. Shacham

Department of Chemical Engineering

Research output: Contribution to journal › Article › peer-review

16 Scopus citations

Abstract

The present state of the art in the experimental determination of mass transfer coefficient in Air Lift Reactors is reviewed. A Criterion which allows to decide whether the assumption of perfect mixing of the liquid phase is valid was experimentally verified. For the cases where such assumption does not hold, a new method that renders local values of K_La in each of the regions of the reactor (riser, downcomer and gas separator) is presented. The model is based on a fluid dynamic structred model of the system.

Original language	English
Pages (from-to)	2221-2226
Number of pages	6
Journal	Chemical Engineering Science
Volume	47
Issue number	9-11
DOIs	https://doi.org/10.1016/0009-2509(92)87038-R
State	Published - 8 Jun 1992

Keywords

Air Lift
Mass Transfer rate
Structured Model

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering
Industrial and Manufacturing Engineering

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10.1016/0009-2509(92)87038-R

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abstract = "The present state of the art in the experimental determination of mass transfer coefficient in Air Lift Reactors is reviewed. A Criterion which allows to decide whether the assumption of perfect mixing of the liquid phase is valid was experimentally verified. For the cases where such assumption does not hold, a new method that renders local values of KLa in each of the regions of the reactor (riser, downcomer and gas separator) is presented. The model is based on a fluid dynamic structred model of the system.",

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AU - Merchuk, J. C.

AU - Osemberg, G.

AU - Siegel, M.

AU - Shacham, M.

PY - 1992/6/8

Y1 - 1992/6/8

N2 - The present state of the art in the experimental determination of mass transfer coefficient in Air Lift Reactors is reviewed. A Criterion which allows to decide whether the assumption of perfect mixing of the liquid phase is valid was experimentally verified. For the cases where such assumption does not hold, a new method that renders local values of KLa in each of the regions of the reactor (riser, downcomer and gas separator) is presented. The model is based on a fluid dynamic structred model of the system.

AB - The present state of the art in the experimental determination of mass transfer coefficient in Air Lift Reactors is reviewed. A Criterion which allows to decide whether the assumption of perfect mixing of the liquid phase is valid was experimentally verified. For the cases where such assumption does not hold, a new method that renders local values of KLa in each of the regions of the reactor (riser, downcomer and gas separator) is presented. The model is based on a fluid dynamic structred model of the system.

KW - Air Lift

KW - Mass Transfer rate

KW - Structured Model

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JO - Chemical Engineering Science

JF - Chemical Engineering Science

IS - 9-11

ER -

A method for evaluation of mass transfer coefficients in the different regions of air lift reactors

Abstract

Keywords

ASJC Scopus subject areas

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