23-Chem-B5 Pulp and Paper Technology
Worked solutions to 2 past sittings (2017), 10 questions. Pick a sitting, or start from a topic below.
Topics across the sittings
Topics that come up in more than one sitting, taken from the headings of our worked solutions. A topic counts once per sitting.
- Bleaching (2 sittings): December 2017 Q4 · Undated paper Q3
- Digesters (2 sittings): December 2017 Q1 · Undated paper Q5
- Evaporation (2 sittings): December 2017 Q1 · Undated paper Q5
- Furnish Species (2 sittings): December 2017 Q4 · Undated paper Q3
- Grinder Energy/Water Balance (2 sittings): December 2017 Q4 · Undated paper Q3
- Kraft Recovery Cycle (2 sittings): December 2017 Q1 · Undated paper Q5
- Mechanical Pulping (2 sittings): December 2017 Q4 · Undated paper Q3
- Oxygen Delignification (2 sittings): December 2017 Q2 · Undated paper Q1
- Recovery Boiler (2 sittings): December 2017 Q1 · Undated paper Q5
- Tall Oil (2 sittings): December 2017 Q1 · Undated paper Q5
Questions by sitting
December 2017
- Question 1: Kraft Recovery Cycle — Evaporation, Recovery Boiler, Tall Oil, Digesters & Batch-Digester Mass Balance
- Question 2: ECF Bleach Plant — DEopDEpD Sequence, Effluent Parameters, Oxygen Delignification, ClO 2 Generation & Heat Recovery
- Question 3: Stock Preparation & Paper Machine Wet End — Freeness, Strength Testing, Cleaning, Drying & Fourdrinier Water/Fibre Balance
- Question 4: Mechanical Pulping — Furnish Species, TMP vs. Groundwood, Bleaching, Screening & Grinder Energy/Water Balance
Undated paper
- Question 1: ECF Bleach Chemistry, Oxygen Delignification & Chlorine Dioxide Generation/Dosing
- Question 2: Oxygen Delignification & ClO 2 Dosing — Wood Supply, Washing & Fresh Water
- Question 3: Mechanical Pulping — Furnish Species, Grinding vs. Refining, Bleaching, TMP Screening & Grinder Energy/Water Balance
- Question 4: Stock Testing, Pulp Cleaning, Paper Machine Drying & Fourdrinier Wet End — Water/Fibre Balance
- Question 5: Kraft Recovery Cycle — Evaporation, Recovery Boiler, Tall Oil, Digesters & Continuous-Digester Kappa Control
- Question 6: Batch-Digester House & Recausticizing Mass Balance