Numerical investigation on particle swelling in spray roasting reactors

Journal article (2016)

Authors

M. Schiemann Ruhr-Universität Bochum

A.B. de Haan ChemE/Transport Phenomena -

S. Wirtz Ruhr-Universität Bochum

Research Group

ChemE/Transport Phenomena () (TU Delft)

DOI: https://doi.org/10.1016/j.ijmultiphaseflow.2016.04.016

Spray roasting Iron chloride Pyrohydrolysis Particle morphology

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Published Date

2016

Language

English

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Faculty

Applied Sciences

Department

ChemE/Chemical Engineering

Research Group

ChemE/Transport Phenomena

Abstract

Spray roasting of metal chloride solutions is frequently used in steel industries to recover pickling liquids. As spray roasting reactors are difficult to characterize experimentally, computational fluid dynamics simu- lations have been used to investigate reactor performance. These simulations require a particle formation model, which describes the particles size history including the characteristic effect of particle swelling. Based on available literature, different swelling models are compared by simulations of an industrial scale reactor. The influence of particle swelling is discussed. The results clearly indicate the necessity to investi- gate particle swelling, potential collision effects and fragmentation for sound simulation of spray roasting reactors.

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