Chemical Engineering Technology 1
CET150X
Graduate attribute assessment.
The Problem
You have been employed in a company that primarily produces potassium sulphate
(K2SO4). The section of the plant that you are responsible for concentrates K2SO4. You are
expected to use 3 different permutation in the process conditions to solve all the unknown
composition and flowrates.
You are also expected to use Microsoft excel to solve this problem and showing the
impact of the 3 permutations.
You are expected to write a report for the company stating the outcomes of the
permutations
A solution M1 containing 18% KCl, 3% K2SO4 and 79% water is fed to the process
shown below at the rate of 150 kg/hr. The compositions of the streams are as follows
in mass percent.
The process conditions are:
Permutation 1:
Evaporator product (M5): KCl – 17%, K2SO4 – 22%, H2O – 61%.
Recycle (M7) KCl – 20%.
M3= 100% KCl
M4= 100% H20
M6=100% K2SO4
Permutation 2:
Evaporator product (M5): KCl – 22%, K2SO4 – 15%, H2O – 63%.
Recycle (M7) KCl – 15%.
M3= 100% KCl
M4= 100% H20
M6=100% K2SO4
Permutation 3:
Evaporator product (M5): KCl – 15%, K2SO4 – 25%, H2O – 60%.
Recycle (M7) KCl – 15%.
M3= 95% KCl, H2O – 5%.
M4= 100% H20
M6=100% K2SO4
Activities
1. Class exercise to calculate the first permutations of the GA exercise.
2. Create an excel spreadsheet to explore the three permutation
3. Write a report on the purpose of the project, a comparison of the results and the
proposed suggestion and the rationale for choosing the permutation
The Questions related to the Problem
1
. For a feed rate of 150 mol/hr of stream
1.1. Draw a block flow diagram and draw and
1.2. Complete the degree-of-freedom analysis table ( use Ms word and Ms Excel) to determine if
the process is correctly specified.
2.
Determine all unknown flow rates and compositions in the process for all the permutations.
RUBRICS FOR GA 1: Problem Solving: Apply engineering principles to systematically diagnoze and solve welldefined engineering problems
Level 4
Level 3
Level 2
Level 1
Strong
Competent
Developing
Needs Work
Demonstrates a skillful
ability to identify /
articulate a problem that
is strongly supported and
clearly liked to the issues
at hand
15 14 13
12
Demonstrates ability to identify/ articulate
a problem that is clearly linked to the
issue at hand.
11
10
9
8
Demonstrates some ability to identify/
articulate a problem that is partially
connected to the issue at hand.
7
6
5
Achieved
Demonstrates minimal or no ability to
identify / articulate a problem.
4
3
2
1
0
RUBRICS FOR GA 2: Application of scientific and engineering knowledge: Apply knowledge of mathematics,
natural science, and engineering sciences to defined and applied engineering procedures, processes, systems
and methodologies to solve well-defined engineering problems.
Level 4
Level 3
Level 2
Level 1
Strong
Competent
Developing
Needs Work
Demonstrates a
comprehensive
understanding of
underlying theory and
application to the
problem.
15
14
13
12
Demonstrates an ability to understand the
application of theory to the problem.
Demonstrates some ability to understand the
application of theory to the problem.
11
10
9
8
7
6
5
4
Achieved
Demonstrates minimal or no ability to
understand the application of theory to the
problem.
3
2
1
0
RUBRICS FOR GA 5: Engineering methods, skills, tools, including Information Technology: Use appropriate
techniques, resources and modern engineering tools, including information technology, prediction and modelling,
for the solution of well-defined engineering problems, with an understanding of the limitations, restrictions,
premises, assumptions and constraints.
Level 4
Level 3
Level 2
Level 1
Strong
Competent
Developing
Needs Work
Demonstrates skillful
ability to identify the most
relevant tools for a range
of engineering activity.
15
14
13
12
Demonstrates an ability to identify and
use relevant tools for an engineering
activity.
11
10
9
Demonstrates some ability to identify and use
tools for an engineering activity, but may not
identify the most relevant tool.
8
7
6
5
4
Achieved
Demonstrates minimal or no ability to
identify or use tools for an engineering
activity.
3
2
1
0