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| LIF5180 | Chemistry of Pulping | 3+0+0 | ECTS:7.5 | | Year / Semester | Fall Semester | | Level of Course | Second Cycle | | Status | Elective | | Department | DEPARTMENT of FIBER and PAPER TECHNOLOGY | | Prerequisites and co-requisites | None | | Mode of Delivery | Face to face | | Contact Hours | 14 weeks - 3 hours of lectures per week | | Lecturer | Prof. Dr. Hüseyin KIRCI | | Co-Lecturer | Prof. Dr. İlhan DENİZ | | Language of instruction | Turkish | | Professional practise ( internship ) | None | | | | The aim of the course: | | The main goals of this course are to give some useful knowledge about pulping reaction |
| Programme Outcomes | CTPO | TOA | | Upon successful completion of the course, the students will be able to : | | | | PO - 1 : | define and explain the importance of lignin and carbohydrate reactions during pulping operation. | 4 | 1,3 | | PO - 2 : | examine beneficial and harmful reaction happened throughout pulping operation. | 3,4 | 1,3 | | PO - 3 : | propose on the limitation of harmfully chemical reactions on lignin and polysaccharides | 3,4 | 1,3 | | CTPO : Contribution to programme outcomes, TOA :Type of assessment (1: written exam, 2: Oral exam, 3: Homework assignment, 4: Laboratory exercise/exam, 5: Seminar / presentation, 6: Term paper), PO : Learning Outcome | | |
| Acidic pulping reactions: Acidic hydrolysis of polysaccarides, factors effecting the hydrolisis, dehydradation and oxidation reactions. Lignin reactions in acidic medium. Alkalen pulping reactions: Peeling and alkalen hydrolysis, oxidative degradation reactions. Hydrogenisation of monosaccarides. Lignin degradation reactions in alkalen pulping media. Reactions of ectractives during pulping |
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| Course Syllabus | | Week | Subject | Related Notes / Files | | Week 1 | Acidic hydrolysis of polysaccaride, factors affecting acidic hydrolysis | | | Week 2 | dehydradation reactions on acidic medium and oxydation reactions | | | Week 3 | Delignification and condensation reactions in the acid sulphite cooking | | | Week 4 | Acidic polysaccaride reactions: acidic hydrolysis | | | Week 5 | Peeling and stopping reactions on polysaccaride chains and their effects on pulp quality | | | Week 6 | Oxydative depolymerization on polysaccaride chain in the alkaline medium | | | Week 7 | Hydrogenation of monosaccarides during the alkaline cooking | | | Week 8 | Fragmentation of lignin molecule during soda process
| | | Week 9 | Mid-term exam | | | Week 10 | Fragmentation and degradation of lignin molecule during kraft cooking | | | Week 11 | Sulfonation and hydrolysis of lignin molecules in the alkali-sulfite and neutral-sulfite pulping media | | | Week 12 | Reactions of wood extractives in the alkalen medium | | | Week 13 | Acidic bleaching reactions of chemical pulp, quiz | | | Week 14 | Alkaline bleaching reactions | | | Week 15 | Reactions on chromophorik lignin structures during lignin preservative bleaching | | | Week 16 | End-of-term exam | | | |
| 1 | Kırcı, H. Pişirmenin Kimyası Ders Notları (basılmamış ders notları) | | | |
| 1 | Fengel, D., Wegener, G., 1989; Wood Chenistry: Ultrastructure, Reactions, Walter de Gruyter inc. Berlin, Germany. | | | 2 | Gellichsen J., Fogelholm C.J., 1999; Chemical Pulping, Vol:1, Printed by Fapet Oy, Helsinki, Finland. | | | |
| Method of Assessment | | Type of assessment | Week No | Date | Duration (hours) | Weight (%) | | Mid-term exam | 9 | | 1 | 50 | | End-of-term exam | 16 | | 1 | 50 | | |
| Student Work Load and its Distribution | | Type of work | Duration (hours pw) | No of weeks / Number of activity | Hours in total per term | | Yüz yüze eğitim | 3 | 14 | 42 | | Sınıf dışı çalışma | 2 | 14 | 28 | | Arasınav için hazırlık | 8 | 5 | 40 | | Arasınav | 1 | 1 | 1 | | Ödev | 6 | 7 | 42 | | Kısa sınav | 1 | 1 | 1 | | Dönem sonu sınavı için hazırlık | 6 | 7 | 42 | | Dönem sonu sınavı | 1 | 1 | 1 | | Total work load | | | 197 |
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