| Code |
15956
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| Year |
1
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| Semester |
S1
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| ECTS Credits |
6
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| Workload |
PL(15H)/T(30H)/TP(15H)
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| Scientific area |
Industrial Chemistry
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Entry requirements |
Not applicable.
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Learning outcomes |
Students should be able to use the fundamentals of wood, pulp and paper chemistry to understand, analyze and optimize the pulp and paper production processes. Starting from the chemistry and kinetics of the transformation of lignocellulosic materials, students learn the rationale behind the production of chemical pulp and paper production and the technology used
Student should be able to: describe the chemical composition of lignocellulosic materials; know the main reactions of wood components in acidic and alkaline medium and under the action of specific enzymes; understand the kinetics of wood delignification and cellulose and hemicellulose depolymerization/extraction processes; know and analyze the different unit operations involved in the production of chemical pulp, and the effect of the operating variables, as well; know and analyze the different unit operations involved in paper production and the effect of operating variables, including basic aspects of paper chemistry.
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Syllabus |
Wood and process chemistry
1.1 Wood chemistry and structure
1.2 Chemistry of cellulose, hemicelluloses, lignin and extractives
1.3 Chemistry of cooking in acidic, basic and by the action of microorganisms
1.4 Chemistry of bleaching with oxidizing, reducing and enzyme agents
2. Chemical pulp production processes
2.1 Various production processes
2.2 Kinetics of delignification and depolymerization/extraction of cellulose and hemicelluloses; selectivity
2.3 Transport phenomena in heterogeneous reaction systems
2.4 Unit operations in the production of chemical pulps (fundamentals and technology)
2.5 Cooking processes and technology (integration)
2.6 Chemical pulp bleaching processes and technologies
3. Paper production processes
3.1 Overview of the different types of papers
3.2 Unit operations in paper production
3.3 Refining, forming, drying, calendaring
3.4 Paper chemistry
3.5 Paper production processes and technology
3.6 Optical, structural and physical-mechanical properties of paper
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Main Bibliography |
Sixta, Herbert, Handbook of pulp, Wiley-VCH, 2006.
Stenius, P. Forest Products Chemistry, in Papermaking science and Technology Book Series.
Fardim, P. Chemical pulping, Part 1, Fibre Chemistry and Technology, in Papermaking science and Technology Book Series.
Paulapuro, D. Papermaking, Part 1, Stock preparation and wet end, in Papermaking science and Technology Book Series.
Karlsson, M. Papermaking, Part 2, Drying, in Papermaking science and Technology Book Series
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Language |
Portuguese. Tutorial support is available in English.
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