1. by Pınar Özbay Nihal Payza Zeynep Pekişen Deniz Uğurlar
PRODUCTION OF ISOPROPYL ALCOHOL
(IPA)
by Pınar Özbay
Nihal Payza
Zeynep Pekişen
Deniz Uğurlar

2. Information about... Isopropyl Alcohol Manufacturing Processes
Process Selection
Market Research
Capacity Determination
Process Flow Diagram
Calculation Algorithms
Results & Conclusions

3. Isopopyl Alcohol ???
Flammable , colorless liquid with a strong and pleasant odor
Miscible with water , ethanol , acetone and benzene
Used as a solvent and cleaning fluid
Applications
Pharmaceuticals ,pesticides ,coatings ,daily-use chemicals and organic synthesis sectors
As cleaning agents used on electronic devices such as contact pins, magnetic tape deck, lenses of lazers in opticak disk drivers
Anti-freeze agent in fuel
Preservative to replace formaldehyde in strong solutions
C3H7OH

4. IPA Manufacturing Processes
Direct Hydration
combination of water and propylene with acidic cation exchange resin catalyst
Indirect Hydration
Reaction of propylene with sulfuric acid with a heterogenous polymeric acid catalyst
Acetone
Hydrogenation of acetone
Advantages of Direct Hydration
Thermally stable polymeric catalyst
High product quality
Cost effective
Environmental friendly
High selectivity of IPA

5. Process Selection
Process for producing isopropyl alcohol, US 5,763,693
Criteria for this selection
A final product with a composition of 90% IPA and 10% water
High conversion of Direct Hydration Process
High Selectivity of IPA
Cost effectiveness
No removal units
High data availability
Less complex process
Compressor and heat exchanger addition
High pressure
No recycle of propane

6. Market Research
Largest producers: Shell, ExxonMobil, Sasol and Dow (72%)

7. Design Capacity of IPA
TUIK DATA
5 year moving
3 year moving

8. Design Capacity of IPA Year difference calculation between countries
Population, GDP, growth rates and consumption of countries
Calculation of future population and GDP of Turkey
reference year: 2005
Calculation of consumption of Turkey per capita
Final design capacity of Turkey

9. Sample Calculation of Germany
Pop_Tur_future
GDP_Tur_future
cons/capita_GR
cons/capita_TR
Capacity_exc_ppp
Capacity
2006
0.689
0.888
2005
0.636
2004
0.615
0.505
2003
0.738
1.122
2002
0.665
0.634
2000
0.695
0.632
1998
0.698
3.308
1997
0.526
1996
0.707
0.587
1995
0.344
0.274
1993
0.583
0.359
1992
0.625
0.586

10. Design Capacity of IPA The best fit Logaritmic model
TUIK DATA
5 year moving
3 year moving
Projected Models
Consumption Projections of IPA
The best fit Logaritmic model
Design capacity of IPA in  43,000 tons/year

11. Process Flow Diagram Component Separator(V101) Top: Propane, propylene
Bottom: Water, propane, isopropanol
Direct Hydration Unit (Packed Bed)
No side reaction
X = 0.75
adiabatic rxn at 80atm
T : 406 K  428 K
Distillation(V102)
Propylene, propane recycle to mixer
Bottom: propane
96% propylene
4% propane
Mixer
propane
water
propane
Centrifugal Compressor & Pump
Efficiency : 0.8
90% IPA
10% water
Extraction (V103)
T: 403K
Top: Isopraponal, water, propane
Bottom: Water, propane recycle to mixer
Gas-Liquid Separator(V104)
T: 353 K
Top: Propane
Bottom: IPA
propane

12. Calculation Algorithm
Heat Exchanger
Component Seperator
∆H= Hinlet- Houtlet
Adiabatic Compressor *W
Adiabatic Reactor

13. As a summary . . . Isopropyl Alcohol YES
90% IPA as end product
data availability
Direct Hydration Process
less energy consumption
˜ 75% conversion of
IPA
cost effective
Isopropyl Alcohol
Are these reasons satisfactory to design an IPA production plant with a capacity of
43000 tonnes per year by using this process?
YES

14. THANK
YOU
FOR YOUR
ATTENTION