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Manufacturing processes of cellulosic pulps - 4FMT1050

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  • Number of hours

    • Lectures : 15.0
    • Tutorials : 9.0
    • Laboratory works : ?
    • Projects : ?
    • Internship : ?
    • Written tests : 1.5
    ECTS : 50.0
  • Officials : Christine CHIRAT

Goals

Describe the chemistry and technology of kraft and sulphite pulping of lignocellulosic substrates as well as recent developments in the manufacture of chemical and mechanical pulps

Content

Evolution of the pulp production worldwide
Degradation of lignin in the Kraft process - the different phases of delignification - H Factor
Degradation of cellulose and hemicelluloses in the Kraft process. Kinetic aspects.
batch and continuous cooking technologies .
Kraft process improvement: increased fiber yield - Improved fiber quality - modified cooking (RDH, Superbatch, MCC, EMCC, ITC, lo-solid, compact ...)
Influence of wood species and size of chips on the quality of pulp.
Composition of the different liquors in the Kraft process.
Titration of kraft liquors (active alkali, effective alkali, residual alkali after cooking sulphidity.
Soda - anthraquinone pulping process
Washing technology - efficiency of washing
Evaporation-combustion-recovery of chemicals - simplified material and thermal balances
Degradation of lignin, cellulose and hemicelluloses in the sulphite process
Sulphite process technology
Main mechanical pulping processes - evolution (APMP, Thermopulp, RTS)
Bleaching of mechanical pulps. Brightness stability

Prerequisites

Basic chemistry of vegetal biomass components

Tests

writen exam in the middle and at the end of the course
this course can be recovered in 2nd round

note = note du DS

Calendar

The course exists in the following branches:

  • Curriculum - - Semester 7 (this course is given in english only EN)
  • Curriculum - Pagora Engineer - Student - Semester 7 (this course is given in english only EN)
  • Curriculum - Pagora Engineer - Apprentice - Semester 7 (this course is given in english only EN)
see the course schedule for 2018-2019

Additional Information

Course ID : 4FMT1050
Course language(s): FR

You can find this course among all other courses.

Environmental security

RAS

Bibliography

SUNDHOLM J. [et al.] Papermaking science and technology, book 5, Mechanical pulping. Helsinki : Fapet Oy, 1999.
GULLISCHEN J., FOGELHOLM C.J. [et al.] Papermaking science and technology, book 6A, Chemical pulping. Helsinki : Fapet Oy, 1999.
GULLISCHEN J., FOGELHOLM C.J. [et al.] Papermaking science and technology, book 6B, Chemical pulping. Helsinki : Fapet Oy, 1999.
GÖTTSCHING L., PAKARINEN H. [et al.] Papermaking science and technology. book 7, Recycled fiber and deinking. Helsinki : Fapet Oy, 2000.
FENGEL D., WEGENER G. Wood : chemistry, ultrastructure, reactions. Berlin ; New York : W. de Gruyter, 1984.

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Grenoble INP Institut d'ingénierie Univ. Grenoble Alpes