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23-Chem-A4 Chemical Reactor Engineering: Undated paper

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  1. Question 1 Ideal PFR with Product-Inhibited Kinetics
  2. Question 2 Testing a Dual-Site LHHW Rate Law for DME Synthesis
  3. Question 3 Pulse-Tracer Test on a Fouled Polymerization Reactor
  4. Question 4 Effectiveness Factor from Particle-Size Experiments
  5. Question 5 First-Order Fit and External Mass-Transfer Diagnosis in a Packed PFR

Start with Question 1 →

National Exams / EGBC — 16-Chem-A4, Chemical Reactor Engineering, May 2019 (archived without a date as “undated (16-Chem-A4)”) — 23-Chem-A4 Chemical Reactor Engineering. Three-hour open-book exam: one textbook of the candidate's choice, personal unit-conversion / mathematical tables (e.g. CRC Handbook) and any non-communicating calculator. Five questions are printed and any four constitute a complete paper (25 points each); all five are solved below. No credit is given for deriving rate expressions or standard formulas available in the textbook, so the design equations are quoted with their source and applied.

Reference texts: H. S. Fogler, Elements of Chemical Reaction Engineering (5th ed., Pearson) — PFR design equation, Langmuir–Hinshelwood rate-law analysis, residence-time distributions, internal effectiveness factor and external mass transfer in packed beds; O. Levenspiel, Chemical Reaction Engineering (3rd ed., Wiley) — tracer (pulse) experiments and film/pore-diffusion diagnostics for solid-catalysed reactions.