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Chemical Engineering Science 57 (2002) 3185-3215
www.elsevier.com/locate/ces

Measuring techniques in gas-liquid and gas-liquid-solid reactors

Christophe Boyer, Anne-Marie Duquenne, Gabriel Wild

Abstract: This article offers an overview of the instrumentation techniques

developed for multiphase flow analysis either in gas/liquid or in gas/liquid

/solid reactors. To characterize properly such reactors, experimental data

have to be acquired at different space scale or time frequency. The existing

multiphase flow metering techniques described give information concerning

reactor hydrodynamics such as pressure, phases holdups, phases velocities

,flow regime, size and shape of dispersed inclusions, axial diffusion coeffi-

cients.The measuring techniques are presented in two groups: the non-intrusive

techniques that deliver global, cross-section-averaged or local data, and

the intrusive probes that are dedicated to local measurements. Eventually

some examples of multiphase instrumentation development are reported (trickle

-bed and slurry bubble column at semi-industrial scale) in the refinery or

petrochemical area.
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FROM 166.111.35.*