For the high gas velocity used assume that film diffusion does not offer any resistance to transfer
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For the high gas velocity used assume that film diffusion does not offer any resistance to transfer and reaction. Reaction temperature = 900°C.
Assuming that reaction proceeds by the shrinking-core model calculate the time needed for complete conversion of a particle and the relative resistance of ash layer diffusion during this operation.
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2ZnS + 30₂2ZnO + 2SO₂
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