HYSYS REPORT
PROPYLEN OXIDE CO-PRODUCTION WITH t-BUTYL ALCOHOL BY THE
TEXACO HYDROPEROXIDATION PROCESS
Done by:
Adel Abdullah
Sultan Mohammad
Khaled Suad
Khaled Al-matoog
Outlines:
• Introduction
• Assumptions
• Process Description
• Over All Mass & Mole Balance
• Comparison of Actual and Hysys
Simulation
• Final Results
INTRODUCTION
• There are tow types of process :
• Isobutene Oxidation : it has two reactions
• (CH3) 3 CH+02→ (CH3)3COO
• (CH3)3 CH+0.5 02→ (CH3)3 COH.
• Propylene Epoxidation:
• CH3 CH = CH2 + (CH3)3 COOH → CH3CH-CH2 + (CH3)3 COH
Programming Production PO
into HYSYS
Adding components:
Assumptions :
1) Fluid package used is Wilson.
Assumptions :
• 2. The Reactors types are conversion reactor .
• 3. The pressure drop inside all Distillation
•
•
Columns not exceed 5 Psia.
4. We change the type of condenser in
distillation column (C-302) from partial reflux to
total reflux so it could be solved .
5. There are many pumps , compressor , heaters
,valves and cooler when we need to control
pressure and temperature .
Equipment used in Hysys
simulation:
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•
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Total
Total
Total
Total
Total
Total
Total
Total
number of mixers :5
number of reactors:2
number of heat exchangers:7
number of distillation columns:5
number of Tees :4
number of compressors:2
number of pumps: 5
number of valves: 2
Process Description
Isobutene Oxidation :
(CH3) 3 CH+02→ (CH3)3COO
(CH3)3 CH+0.5 02→ (CH3)3 COH
The column operated with the subsistence of the specifications:
1-we gave a component recovery for isobutane 0.995and for TBHP 0.967.
2- A reflux radio at the condenser with value of 1.
3-The numbers of trays was used 39
The specifications entered for the distillation column(C-102) are:
-The reflux ratio half a specified of 5.
-The number of trays used was 34.
- The distillation operators at 100 Psia at the top and 105 psia at the bottom.
Propylene Epoxidation:
CH3 CH = CH2 + (CH3)3 COOH → CH3CH-CH2 + (CH3)3 COH
The specification entered for the distillation column (C-301) are:
-The reflux ratio had specified value of 2.
-The number of trays used was 35.
-The distribution operates at 60 psia at the top and 65 psia at the bottom.
The specifications entered for the distillation column(C-304) are:
-The number of trays used was 17.
The distillation operators at 15 Psia at the top and 20 psia at the bottom.-The reflux ratio had specified value of 17-
The specifications entered for the distillation column(C-302) are:
-The reflux ratio half a specified of 5.
-The number of trays used was 24.- The distillation operators at 120 psia at
the top and 125 psia at the bottom.
Over All Mass & Mole Balance
• Mass balance:
240,522
(lb/hr)
239,235
(lb/hr)
Over All Mass & Mole Balance
• Mole balance:
2,219
(kgmole/hr)
2,007
(kgmole/hr)
Comparison of Actual and Hysys
Simulation
 Stream data
Final Results:
• The resulting propylene oxide from this
plant has purity of 97.9% with flow rate of
49,122 lb/hr and 94,646 of TBA as co
product.