ENCH 360
CHEMICAL ENGINEERING SEPARATIONS 2010
Course Content
This is a full year 1.5 weight course that deals with process operations involving separations.
Operations considered include: humidification, drying, liquid-liquid extraction, gas absorption and
membrane separations. Basic principles of absorption are described and the design methods for simple
stage-wise and continuous contact equipment are described. The basic relationships governing heat
and mass transfer processes during cooling of liquids by evaporation and drying of moist solids are
considered. Students will learn the principles of design for adsorption and liquid-liquid extraction
processes and introduced to the relative economics of different separation processes.
In Semester 1, Professor Shusheng Pang (SSP) will give 4 lectures on conceptual design of
separation processes, including selection of unit operations to exploit the properties of components to
be separated. Associate Professor Ken Morison (KRM) will give 8 lectures on membrane and
adsorption separation processes. This will include consideration of operations such as ultrafiltration,
reverse osmosis, microfiltration and activated carbon adsorption. Professor Pang (SSP) will then give 6
lectures on humidification with basic principles for the air–water system.
In Semester 2, Professor Shusheng Pang (SSP) will give a 6 lecture section on drying covering the
development of methods for sizing industrial scale drying equipment. Erskine visitor will give 5
lectures on gas absorption (principles and design), 5 lectures on principles and practice of ion exchange
and 5 lectures on liquid-liquid extraction. This will summarize basic principles concerned with totally
immiscible systems and partially miscible systems and the simple design methods for stage-wise
processes.
Relation to Other Courses
Completion of ENCH253 Heat and Mass Transfer is an essential prerequisite to this course.
Workload
Attendance at all lectures, submission of all assignments, completion of directed reading, writing of
personal lecture notes, practice of problem solving from past examination papers and from the
recommended texts, revision and preparation for end of year exam.
Lectures as follows:
First Semester
Tuesday
12:00 -12:50pm
Thursday
12:00 -12:50pm
E14
Second semester (to be confirmed)
Wednesday 9:00 - 9:50am
E16
E14
Thursday
E14
1
9:00 - 9:50am
Assessment
Assign 1
Assign 2
Assign 3
Assign 4
MidY Test
EY Exam
Issue
KRM
17 Mar
SSP
4 May
Erskine/SSP 14 Sept
Erskine
14 Oct
SSP/KRM
tba
SSP/Erskine tba
Due
27 Apr
25 May
5 Oct
%wt
5
7.5
10
7.5
30
40
No extensions are permitted except on medical certificate or compassionate grounds.
Materials
Recommended texts for directed reading:
Coulson J M, Richardson, J F, Backhurst, J R, Harker, J H Chemical Engineering, Volume 2, 3rd
Edition, Pergamon, 1999 Library ref: TP 155 .C855 1999
Coulson, J M, Richardson, J F, Sinnott, R K Chemical Engineering, Volume 6, 3rd Edition, Pergamon,
1999 TP 155 .C855 1999
Treybal, R E Mass Transfer Operations, 3rd edition, McGraw Hill, 1980 Library Ref: TP 156 .M3.T817
Lecturers
Professor Shusheng Pang, Room D554, S R Siemon Building (Course Coordinator)
Extn. 6538, email: shusheng.pang@canterbury.ac.nz
Associate Professor Ken Morison, Room D462, S R Siemon Building
Extn 6578, email ken.morison@canterbury.ac.nz
Topics
Conceptual design, liquid-liquid extraction, psychrometrics, evaporative cooling, drying of solids,
hydraulic design of plate and packed absorption columns, membrane separation processes, adsorption
and ion exchange.
Students Repeating the Course
Contact the Course Co-ordinator.
Concerns
Students with concerns about the course should contact either of the lecturers listed above, the 2nd Pro
Director of Studies or the Head of Department.
General Policies of the Department
Students may obtain the general policies of the University on matters such as the aegrotat applications,
appeals procedures, reconsideration of grades and special provision for students with disabilities from
the University Calendar. The Departmental assessment details are distributed to the students at the
beginning of the year.
Last updated 8 March 2010
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