Department
of Trades and Technology
COURSE
NUMBER: PPT115 CREDIT
HOURS: 3
COURSE TITLE: Pulping
Technology CLOCK
HOURS: 45
INSTRUCTOR: Monty
Henderson OFFICE
HOURS: As posted.
OFFICE: Room
103,
E-MAIL
ADDRESS: mhenderson@kvcc.me.edu
TEXTS:
Required:
Smook,
G.M. Handbook for Pulp and Paper Technologist, 3rd Ed.,
Mimms,
A., M.J. Kocurek, J.A. Pyatte, E.E. Wright (Eds.). Kraft Pulping - A
Complication of Notes, 2nd Printing, Revised,
PRE/CO-REQUISITES: PPT111,
CHE112
COURSE
DESCRIPTION:
This course begins with an overview of
the three basic pulping technologies—mechanical pulping, sulfite pulping, and
kraft pulping. Because of the increased use of recycled fiber as a fiber
source, secondary fiber technology is also reviewed. Kraft pulping is the
predominant industry pulping process, so major emphasis is given to this
technology. The supporting chemical and mechanical principles for the pulping
processes are detailed. These include the chemistry of kraft and sulfite
liquors, the chemistry of black liquor recovery, recovery boiler operation,
steam properties related to steam generation in recovery systems,
recausticising, calcination, bleaching sequences, bleaching chemicals, and
overall pulp mill recovery systems as associated with environmental concerns.
The mechanical and chemical bases are provided for the mechanical pulping and
secondary fiber pulping processes. The properties and testing of pulps will be
discussed.
COURSE
OBJECTIVES:
Upon successful completion of this
course, the student should be able to:
1. describe the
three basic pulping technologies as well as secondary fiber pulping.
2. discuss the
underlying chemical and mechanical principles involved in pulping.
3. analyze common
problems occurring in the pulping processes and recommend appropriate remedial
measures.
4. relate pulp
testing methods to basic pulp properties.
COURSE OUTLINE (Topical):
1. Overview
Pulping Methodologies - Introduction to Various Pulping Methods, Market Pulps,
Trends in Pulping, Comparison of Pulp Properties and Applications
2. Secondary
Fiber - Wastepaper Procurement, Degree of Recycling, Repulping of Wastepaper,
Contaminant Removal, Deinking, Secondary Fiber Utilization
3. Mechanical
Pulping - Mechanical Pulping Nomenclature, Stone Groundwood Process, Refiner
Mechanical Pulping, Thermomechanical Pulping, Chemically Modified Mechanical
Pulping, Heat Recover
4. Wood
Chemistry - Chemical Components of Wood, Structure of a Tree Stem, Cell Types
in Wood, Structure of a Softwood Tracheid
5. Chip
Quality - Wood-Related Variables, Process Related Variables
6. Chipping
and Chip Handling - Chipping, Chip Screening, Chip Cleaning
7. Sulfite
Pulping - Nomenclature and Definition of Terms, Process Description, Chemistry
of Sulfite Pulping, Chemistry of Cooking Liquor Preparation, Operation and
Control of Cooking, Two-Stage Sulfite Pulping, Future of Sulfite Pulping
8. Chemistry
and Process of Kraft Pulping - Chemistry of Kraft Pulping, The
Kraft Pulping Process, Analysis of Kraft Liquors
9. Kraft
Pulping - Equipment - Batch Digesters, Continuous Digesters
10. Kraft Recovery Process - Overview, Black
Liquor Processing, The Recovery Boiler,
Causticising/Recausticizing
11. Pulp Processing - Different Pulp Grades,
Defibering and Deknotting, Brown Stock Washing, Screening, Centrifugal
Cleaning, Thickening
12. Bleaching - Bleaching Sequences,
Preparation of Bleach Chemicals, Chlorination and Extraction, Oxygen Bleaching,
Chlorine Dioxide Bleaching, Hypochlorite Bleaching, Peroxide Bleaching, Ozone
Bleaching, Bleaching Equipment, Recycle Filtrates, Pulp Testing
13. Properties and Testing of Pulp -
Objectives of Testing, Characterization of Testing Procedures, Pulp Testing
COURSE
ACTIVITIES:
This is primarily a lecture and
discussion course; TAPPI Introduction to Pulp and Paper Technology
videotapes will be used wherever applicable.
Field trips may be arranged by the instructor in lieu of or in addition
to these video tapes.
COURSE
REQUIREMENTS:
Grading:
Tests (2).......................................................................................................................... 50%
Mid-Term Exam.............................................................................................................. 25%
Final Exam....................................................................................................................... 25%
Equipment:
Hard hat, safety shoes, safety glasses,
hearing protection, and respirator will be required for mill field trips.
Make-up
Exam Policy:
All exams must be taken. The student is
responsible for making arrangements for make-up should he/she be absent. Tests not made up will receive a score of zero.
ATTENDANCE POLICY:
More
than three absences during the course will require special authorization by the
instructor.
STUDENTS WITH DISABILITIES:
In accordance with Section 504 of the
Rehabilitation Act of 1973 and Title II of the Americans with Disabilities Act
of 1990, this College is committed to assisting qualified students with
disabilities achieve their educational goals.
If you are in need of academic
accommodations in this course, you MUST contact the Disability Counselor in
Room 126B, King Hall, 453-5019. You MUST provide
appropriate documentation of your disability and make a request for
accommodation to the Disability Counselor. Request for accommodation must be
renewed each semester for each course.
This syllabus is available in enlarged
print and on audio tape. Please contact the Disability Counselor in Room 126B,
King Hall, to obtain these.
Revision Date: