411-403 Reactor Engineering 2

Credit Points

Coordinator

Prerequisites

610-033 Chemistry (Chemical Engineering), 421-303 Maths for Engineers Unit 3.1, 411-301 Chemical Engineering Thermodynamics, 411-302 Transport Phenomena 2, 411-303 Fluids/Solids Processing, 411-305 Heat Transfer 1, 411-306 Separation Processes 1 and 411-206 Reactor Engineering 1

Corequisites

None

Semester

Contact

Subject Description

The aim of this subject is the analysis, design, scale-up and modelling of chemical reactors processing heterogeneous phases. The topics to be covered are: Non-ideal flow in reactors: residence time distributions, tracer tests, dispersion model, tank-in-series model, multi-parameter models, fluidised bed reactors, conversion in non-ideal reactors, micromixing and macromixing, early and late mixing of fluids. Generalised description of rate controlling mechanisms in heterogeneous reacting systems: film resistance control, chemical reaction control, surface and pore diffusion control, ash layer diffusion, shrinking core mechanisms, effectiveness factors and the Thiele modulus, identification of rate controlling mechanisms through experiments and modelling, determination of kinetic parameters. Design of heterogeneous reactors incorporating non-ideal flow and distributed rate constants. Kinetic regimes for fluid-fluid and gas-fluid reactions. Design of catalytic reactors, staged adiabatic packed bed catalytic reactors, deactivation and regeneration of catalysts. Generalised dynamic modelling of reactors, stability and transient behaviour of reactors, bifurcation problems. Simulation of ill-defined reaction systems.

Assessment

One class test during semester one contributing 20% to the final mark, as well as an examination not exceeding three-hours at the end of the semester one, contributing 80% to the final mark