A reaction model for the electrochemical production of p-anisidine |
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Authors: | J M T Clark F Goodridge R E Plimley |
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Affiliation: | (1) Department of Chemical and Process Engineering, University of Newcastle upon Tyne, Merz Court, Claremont Road, NE1 7RU Newcastle upon Tyne, UK |
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Abstract: | The work examines the possibility of a simple reaction model describing a complex organic electrosynthesis, such as the formation of p-anisidine. The experimental results obey the linear relationships of the model and in consequence the kinetic constants obtained in this way define reaction behaviour. The paper demonstrates how such a model can play a useful role in the design of pilot plant experimentation. Results from a parallel plate cell fit prediction from the model.Nomenclature X]
Concentration of species X (kmol m–3)
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b
Slope of Tafel plot (mV–1)
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E
Electrode potential (mV)
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F
Faraday (C g-equiv–1)
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F
Faraday based on k-equiv = 103F (C k-equiv–1)
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i
A
Partial current density for the primary reaction (A m–2)
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i
B
Partial current density for the consecutive secondary reaction (A m–2)
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i
H
Partial current density for the parallel secondary reaction (A m–2)
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i
Total current density=i
A+i
B+i
H (A m–2)
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k
Reaction rate constant (A m–2 per kmolm–3)
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k
H
Rate constant for the parallel secondary electrode reaction (A m–2)
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k
I
Individual mass transfer coefficient (m s–1)
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N
Flux (kmol m–2 s–1)
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r
Reaction rate (kmol m–2 s–1)
Sufixes A
Appertaining to primary electrode reaction or species A
- B
Appertaining to consecutive secondary electrode reaction or species B
- b
In the bulk of the electrolyte
- H
Parallel secondary electrode reaction
- s
Near the electrode surface |
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Keywords: | |
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