Kuwait University
Faculty of Engineering & Petroleum
CHEMICAL ENGINEERING DEPARTMENT
First Semester 2011/2012
Prof. Mohamed A. Fahim
PLANT DESIGN (ChE 491)
Problem Statement
Project 3
(5 Members Group)
Project Title:
Production of Natural Gas Liquids (NGL)
Plant Capacity:
100 Million lb/yr of Butane
Feed Compositions (mol%)
Feed 1
Feed 2
Feed 3
Feed 4
Refinery Gas Feed
CO2 Feed
Refinery Liquid Feed
NGL Feed
Hydrogen
20.70
0.00
0.46
0.00
CO2
0.00
88.80
0.00
0.00
H2S
0.23
0.00
0.29
0.00
Methane
13.84
0.00
0.23
0.00
Ethane
17.38
8.64
1.20
0.00
Propane
18.12
1.92
11.24
2.39
I-Butane
11.49
0.32
25.30
38.36
Butane
12.29
0.32
53.88
39.83
I-Pentane
2.40
0.00
6.14
7.21
Pentane
1.09
0.00
1.20
8.21
Hexane
2.46
0.00
0.06
4.00
Nonane
0.00
0.00
0.00
0.00
Decane
0.00
0.00
0.00
0.00
Undecane
0.00
0.00
0.00
0.00
174.80
30.80
174.30
280.00
Component
Total Flow Rate
(lb mol/hr)
Hydrogen is added in stoichiometric ratio to the CO2 feed and then fed to the reactor at 400oC and 1 atm
to produce 26.80 lb mol/hr of CH4
Reaction
CO2 + 4H2 → CH4 + 2H2O
(Sabatier Reaction)
Final Product
Propane Product (mol%)
Ethane 1.07
Propane 97.86
I-Butane 1.07
I-Butane Product (mol%)
Propane 1.25
I-Butane 92.59
Butane 6.15
Butane Product (mol%)
I-Butane 3.19
Butane 79.93
I-Pentane 10.41
Pentane 6.48
The other by-products from this process are Fuel gas and C6+. You are required to carry out the
project by completing the following tasks and submit a formal report on each task.
TASK LIST
Task 1:
Literature Survey (Report submission date: 04/03/2012)
1. Various process routes to produce Natural Gas Liquids.
2. Properties of raw materials and final products.
3. Uses of Natural Gas Liquids.
Task 2:
HYSYS Simulation (Report submission date: 01/04/2012)
Simulation of the production of the Natural Gas Liquids using one selected
process flow-sheet.
Task 3:
Equipment Design (Report submission date: 29/04/2012)
Perform detailed design calculations of all the major and minor equipments in
your plant and report its size, construction details, material of construction and
instrumentation & control.
Task 4:
Safety and Health Hazard (Report submission date: 13/05/2012)
Assessment of safety features taken in the plant design and report health hazards.
Task 5:
Economic evaluation (Report submission date: 13/05/2012)
Perform economic study and project evolution for the selected petrochemical
plant.
Task 6:
Final Report (Report submission date: 23/05/2012)
Submit final report for whole project.