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PRODUCTION OF
ISOPROPYL ALCOHOL
(IPA)
by Pınar Özbay
Nihal Payza
Zeynep Pekişen
Deniz Uğurlar
Information about...
 Isopropyl Alcohol
 Manufacturing Processes
 Process Selection
 Market Research
 Capacity Determination
 Process Flow Diagram
 Calculation Algorithms
 Results & Conclusions
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
•
•
•
•
C3H7OH
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
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
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
 Compressor and heat exchanger addition
High data availability
 High pressure
Less complex process
 No recycle of propane
Market Research
 Largest producers: Shell, ExxonMobil, Sasol and Dow (72%)
Design Capacity of IPA
35Year
Data
ofof
IPA
Consumption
YearMoving
Moving
Data
IPA
Consumption
in Turkey
IPA
Consumption
in Turkeyin Turkey
• TUIK DATA
3.E+07
2.E+07
2.E+07
• 5 year moving
kg
kg
kg
• 3 year moving
2.E+07
2.E+07
2.E+07
2.E+07
2.E+07
1.E+07
3 Year
5 years
moving
Turkey
average
1.E+07
1.E+07
8.E+06
8.E+06
4.E+06
5.E+06
4.E+06
0.E+00
0.E+00
0.E+00
1988 1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010
1988 1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010
1988 1990 1992 1994 1996 years
1998 2000 2002 2004 2006 2008 2010
years
years
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
GDPfuture  GDPref  (1   ) ( futureref )
population future  populationref  (1   ) ( futureref )
reference year: 2005
• Calculation of consumption of Turkey per capita
 GDPTurkey, future 

(consumption / capita) Turkey  (consumption / capita) i  
GDPi


consumptionTurkey  (consumption / capita) Turkey  population future
• Final design capacity of Turkey
 PPPTurkey 

capacityTurkey  consumptionTurkey  
PPP
i


Sample Calculation of Germany
GERMANY
Pop_Tur_future
GDP_Tur_future
cons/capita_GR
cons/capita_TR
Capacity_exc_ppp
Capacity
2006
98407805
40876.542
0.689
0.888
87371391.217
76886824.271
2005
93039928
29980.000
0.636
0.636
59182685.196
52080762.973
2004
89121274
23634.165
0.615
0.505
44970355.489
39573912.830
2003
98876465
41964.186
0.738
1.122
110927868.378
97616524.172
2002
90596610
25879.266
0.665
0.634
57466979.218
50570941.712
2000
88994913
23449.544
0.695
0.632
56240631.825
49491756.006
1998
118130904
112192.923
0.698
3.308
390799122.429
343903227.738
1997
84297965
17377.224
0.695
0.526
44369599.653
39045247.695
1996
85200334
18430.585
0.707
0.587
49981523.006
43983740.245
1995
84192973
17257.936
0.344
0.274
23076411.355
20307241.993
1993
79178711
12291.188
0.583
0.359
28392825.774
24985686.681
1992
85349269
18609.364
0.625
0.586
50034562.052
44030414.605
Design Capacity of IPA
• TUIK DATA
• 5 year moving
3.E+08
2.E+08
expo
expo model
model
linear
linear
3.E+08
• 3 year moving
• Projected Models
• Consumption Projections of IPA
poly
poly
log
log
2.E+08
1.E+08
kg/year
kg/year2.E+08
1.E+08
5.E+07
5.E+07
0.E+00
0.E+001990
1990
1995
1995
2000
2000
2005
2005
2010
2010
2015
2015
years
years
2020
2020
2025
2025
2030
2030
2035
2035
The best fit Logaritmic model
Design capacity of IPA in 2025 
43,000 tons/year
2040
2040
Austria
Austria
France
France
Germany
Germany
Greece
Greece
Italy
Italy
Spain
Spain
Switzerland
Switzerland
England
England
Turkey
Turkey
Series13
Series13
Process Flow Diagram
96% propylene
4% propane
Mixer
Component Separator(V101)
Direct Hydration Unit (Packed Bed)
•Top: Propane, propylene
• No side reaction
•Bottom:
Water,
isopropanol
C3 H 6 
H 2 0 

(CH 3 )propane,
2 OH  OH
Distillation(V102)
•X = 0.75
•Propylene, propane recycle to mixer
• adiabatic rxn at 80atm
•Bottom: propane
• T : 406 K  428 K
propane
water
propane
Centrifugal
Compressor & Pump
90% IPA
-Efficiency : 0.8
Extraction (V103)
10% water
T: 403K
•Top: Isopraponal, water, propane
•Bottom: Water, propane recycle
to mixer
propane
Gas-Liquid Separator(V104)
T: 353 K
•Top: Propane
•Bottom: IPA
Calculation Algorithm
Heat Exchanger
Component Seperator
∆H= Hinlet- Houtlet
Adiabatic Compressor
*W
Adiabatic Reactor
As a summary . . .
90% IPA as end product
data availability
Direct Hydration Process
˜ 75% conversion of
IPA
less energy
consumption
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
THANK
YOU
FOR YOUR
ATTENTION