Article | REF: J4012 V1

Multiphase chemical reactors - Reaction/diffusion coupling

Author: Jean-Léon HOUZELOT

Publication date: December 10, 2000

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2. Non-catalytic fluid-solid reactions

Many industrial operations involve reactions between a fluid and a consumable solid: ore roasting, coal combustion, blast furnaces, lime kilns, crystal washing and dissolution... Here are a few particle consumption models. Readers will find more comprehensive treatments in references [7] , [24] , [44] .

Consider the reaction :

A (fluid) + ν B (solid) ® products (solids, fluids)

The solid B initially contained in a particle, for example spherical, is in contact with the fluid A at a given temperature and concentration.

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Non-catalytic fluid-solid reactions