Nivaar worked solution (AI-drafted; not reviewed by a licensed engineer)
Paper format: Closed-book, 3 hours; six “Problem” blocks of equal value (20 marks each), of which five constitute a complete paper (the first five in the answer book are marked). Sub-parts (a),(b),(c)… may be treated independently; most call for concise essay answers and several require calculations with all steps shown. All six problems are solved in full below.
Reference texts: Gary, Handwerk, Kaiser & Geddes, Petroleum Refining: Technology and Economics (5th ed., CRC Press) — refinery conversion processes and product properties; Fahim, Al-Sahhaf & Elkilani, Fundamentals of Petroleum Refining (Elsevier) — cracking, treating, alkylation, characterization factors; Felder, Rousseau & Bullard, Elementary Principles of Chemical Processes (4th ed., Wiley) — material balances, recycle/bypass, combustion and gas-law calculations; Smith, Van Ness & Abbott, Introduction to Chemical Engineering Thermodynamics — Raoult’s-law VLE; supporting property data from Perry’s Chemical Engineers’ Handbook (9th ed.).