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23-Chem-A4 Chemical Reactor Engineering: May 2013

Nivaar worked solution (AI-drafted; not reviewed by a licensed engineer)

  1. Question 1 Diphosgene Decomposition — Order and Activation Energy
  2. Question 2 Reversible Pseudo-First-Order Esterification of Formic Acid
  3. Question 3 Adiabatic Plug-Flow Reactor — Exit Temperature
  4. Question 4 Acetone Pyrolysis in a Plug-Flow Reactor — First-Order Kinetics
  5. Question 5 CSTRs in Series vs. a Single CSTR — First-Order Liquid Reaction

Start with Question 1 →

National Exams — May 2013 — 04-Chem-A4 Chemical Reactor Engineering. Three-hour, open-book exam; any non-communicating calculator permitted, Fogler’s Elements of Chemical Reaction Engineering allowed. Format: five questions, each 20 marks; any four constitute a complete paper (80 marks). All five are solved below for completeness. Per the paper’s instructions, all data are treated as exact and answers are given to three significant figures.

Reference texts: H. S. Fogler, Elements of Chemical Reaction Engineering (4th ed., Prentice Hall) — rate laws, batch/PFR/CSTR design equations, Arrhenius temperature dependence, integral & differential data analysis; O. Levenspiel, Chemical Reaction Engineering (3rd ed., Wiley) — reactor comparison and the tanks-in-series model; supporting thermochemical and property data from Perry’s Chemical Engineers’ Handbook (9th ed.).