EL3501 Electrochemical Reaction Engineering Syllabus:

EL3501 Electrochemical Reaction Engineering Syllabus – Anna University Regulation 2021

OBJECTIVE:

• To familiarize in the aspects of current-voltage relationships & estimation of mass transfer co-efficient, PFR & CSTR systems model

UNIT I CURRENT-VOLTAGE RELATIONSHIPS & ESTIMATION OF MASS TRANSFER CO-EFFICIENT

A general view of electrolytic processes; current-voltage relationships in electrolytic reactors; the limiting current plateau; mass & energy balance, and efficiency in electrochemical reactors. The estimation of mass transport coefficients at commonly occurring electrodes. The estimation of mass transport coefficients under enhanced convection conditions.

UNIT II PLUG FLOW& CSTER SYSTEMS MODEL

A general view of plug flow model of electrolytic reactors: plug flow model of electrochemical reactors employing parallel plate reactor; Plug flow model under constant mass flux conditions; PFM analysis with electrolyte recycling PFM and real electrochemical reactors. General view of simple CSTER systems; CSTER in cascades; CSTER analysis of batch electrochemical reactors, CSTER analysis of semi-continuous electrochemical reactors; CSTER analysis of electrolyte recycling; Batch reactor combined with electrolyte recycling.

UNIT III THERMAL BEHAVIOR OF REACTORS

General aspects of thermal behavior in electrochemical reactor. Thermal behavior under CSTER conditions. The estimation of heat losses; the thermal behavior under PFR conditions; Thermal behavior of batch electrochemical reactors.

UNIT IV CONVECTIVE DIFFUSION EQUATION & CURRENT DISTRIBUTION

Convective diffusion equation and migration effects –derivation of convective diffusion equation theory – scope and limitation – migration effects – Electroneutrality conditions – supporting electrolyte effect – fundamental of Nernst layer model – Estimation of true limiting current

UNIT V DISPERSION MODELS & OPTIMIZATION OF ELECTROCHEMICAL REACTOR

General aspects of dispersion models-tracer input signal/output signal – axial dispersion in electrochemical reactors – axial dispersion and reactor performance – axial dispersion analysis via tank-in-series model – general notions on optimization of electrochemical reactor – elementary process optimization – IBL formula – optimization of electro refining process – Jaskula formula – optimization of a general electrolytic process – The Beck formula.

TOTAL :45 PERIODS

OUTCOME:

• Understand current-voltage relationships & estimation of mass transfer co-efficient the kinetics of homogenous reaction
• Acquire knowledge on plug flow& cster systems m
• Understand the general aspects of thermal behavior in electrochemical reactor
• Understand Convective diffusion equation and migration
• Understand dispersion models & optimization of electrochemical reactor

TEXT BOOK:

1. T.Z.Fahidy, “Principles of Electrochemical Reactor Analysis”, Elsevier, 1985.

REFERENCE:

1. K.Scott, “Electrochemical Reaction Engineering”, Academic Press, 1991