Department of Chemical Engineering, Unit Catalogue 2009/10
CE50170: Principles of chemical engineering for non-engineers
|Supplementary Assessment:||Supplementary assessment information not currently available (this will be added shortly)|
|Description:||This unit is offered to students with no previous experience/knowledge of chemical engineering or technical chemistry. |
To introduce the principles and practices of material and energy balancing (both steady state and unsteady state) for non-reacting and reacting systems in chemical and biochemical engineering. To introduce the principles of reaction engineering and their application to chemical and biological reactor design.
After successfully completing this unit students should be able to:
* Formulate and solve manually material and energy balances for process systems that may include multi-component streams, phase changes, simple reactions, recycles, purges, bypasses and mixing.
* Perform simultaneous material and energy balances on adiabatic, non-adiabatic and isothermal reactors, including equilibrium-controlled reactions.
* Calculate reaction orders, rate constants and half-lives for simple reaction mechanisms. Apply the Arrhenius equation to calculate activation energies.
* Distinguish between various reactor types and explain their applications in chemical and biochemical processes.
Analysis and problem solving (taught/facilitated and assessed).
* Introduction to process systems.
* Units and dimensions; concept of dimensionless numbers.
* Flow rate and concentration (mass, molar, partial pressure).
* Law of conservation of mass.
* Material balances on non-reacting systems, steady and unsteady state (continuous, batch, semi-batch, and batch-fed).
* Synthesis of the process flowsheet; the process flow diagram.
* Material balances on reacting systems (stoichiometry, elemental balances, conversion, yield, recycle, purge, by-pass and mixing).
* Forms of energy and their interchangeability.
* Sensible and latent heats; mixing and solution; multicomponent systems.
* First and second laws of thermodynamics; the general energy equation for closed and open (flow) systems.
* Heats of formation, reaction and combustion; standard and non-standard conditions.
* Energy balances on single and multiphase systems with and without reaction (adiabatic, non-adiabatic and isothermal systems).
* Incomplete conversion, excess reactants, inerts.
* Material and energy balances in combustion.
* Elementary and non-elementary reactions.
* Order of reaction and analysis of rate data.
* Homogeneous and heterogeneous reactions.
* Kinetic rate expressions; rate and equilibrium constants; Arrhenius equation and activation energy; conversion and yield.
* Reactor types and basic design equations.