process simulation

1. Research Presentation
SUPERVISED BY
DR. MOHAMMAD
NURUR RAHMAN
Head
Department of CFPE
PRESENTED BY
SAFAT ANAM
(1511001)
MAZHARULAHMED
(1511016)

2. TITLE
EFFECT OF DIFFERENT ALCOHOL SOLUTION AND MOLAR RATIO ON
BIODIESEL YEILD ON TRANSESTERIFICATIOM REACTION USING ASPEN
HYSYS V10

3. CONTENT
• Objective
• Introduction
• Reaction set of simulation
• Component list & Fluid package of simulation
• Methodology
• Process Block Diagram (PBD)
• Result
• Discussion

4. OBJECTIVES
 To find out which “Alcohol solution” is best suited for “Bio-diesel
Production”from “Waste Cooking Oil”(WCO) using “Transesterification
Reaction” with a “Heterogeneous Base Catalyst” to achieve a high yield of Bio-
Diesel by using “ASPEN HYSYS V10”
 To find out the best-suited molar ratio of ( Oil:Alcohol ) in “Transesterification
Reaction” to achieve a high yield of Bio-Diesel

5. INTRODUCTION
 Bio-Diesel is the mono-alkyl-esters of long-chain fatty acid
Transesterification of bio-Diesel production can be carried out using three
different catalyst:
1. Enzymatic Catalyst: Not recommended due to high cost, low reaction rate
2. Homogeneous Catalyst: Not recommended due to soap formation and
purification difficulties and they can never reuse or recycle
3. Heterogeneous Catalyst:
Advantage: They can reuse and recycle, No soup formation and
no purification difficulties
Limitation: Reaction should be performed in high temeperature and
pressure and rate of reaction low

6. INTRODUCTION (CONT.)
 Our main aim of the work is to find out which Alcohol solution should we use in
the presence of CaO as heterogeneous catalyst and Tetrahydrofuran(THF) as
cosolvent, to find out the best (Oil:Alcohol) ratio of that alcohol to achieve high
yield
 We observe two alcohol solution here. They are Methanol & Ethanol.
We use “ASPEN HYSYS V10” software to simulate their performance to achieve
100% conversion of Triolein.
We also simulate molar ratio effect on yield of Bio-diesel using “Aspen HYSYS
V10”
We use Membrane Reactor to operate our reaction in HYSYS

7. REACTION SET OF SIMULATION
TRANSESTERFICATION USING METHANOL:
• TRIOLEIN + 3 METHANOL = GLYCEROL + 3 M-OLEATE
• TRIOLEIN + 6 METHANOL = GLYCEROL + 3.324 M-OLEATE
• TRIOLEIN + 9 METHANOL = GLYCEROL + 3.648 M-OLEATE
• TRIOLEIN + 12 METHANOL = GLYCEROL + 3.973 M-OLEATE
• TRIOLEIN + 15 METHANOL = GLYCEROL + 4.297 M-OLEATE
• TRIOLEIN + WATER = OLEIC ACID + 19.381 METHANOL
• OLEIC ACID + METHANOL = WATER + M-OLEATE
*** Here M-oleate is Bio-diesel

8. REACTION SET OF SIMULATION (CONT.)
TRANSESTERFICATION USING ETHANOL:
• TRIOLEIN + 3 ETHANOL = GLYCEROL + 3.142 E-OLEATE
• TRIOLEIN + WATER = OLEIC ACID + 13.479 ETHANOL
• OLEIC ACID + ETHANOL = WATER + 1.047 E-OLEATE
* Here E-OLEATE is Bio-Diesel

9. COMPONENET LIST AND FLUID PACKAGE OF
SIMULATION
Component List:
• Triolein
• Oleic Acid
• Water
• Methanol
• Ethanol
• Calcium Oxide (catalyst)
• THF (cosolvent)
• Glycerol
• M-oleate
• E-oleate
Fluid Package:
NRTL ( Non-Random Two
Liquid)

10. METHODOLOGY
Set component
Set Fluid
Package
Set Reaction set
Set Basis For
Calculation
prepare PFD Run Simulation
Some Assumption:
• Flow Rate of WCO taken as 1000 kg/h
• CaO taken as 8wt% & THF taken as 4wt% of WCO
• Flow rate of Methanol taken as 100kmol/h
• Conversion of triolein taken as 100%

11. PROCESS BLOCK DIAGRAM (PFD)
HYSYS MODEL FOR BIODIESEL PRODUCTION USING MEMBRANE
REACTOR
PREPARED BY ASPEN HYSYS V10 SOFTWARE

12. RESULT

13. Molar Ratio Vs Yield
Molar Ratio
( Methanol )
Yield (%)
(1:3) 38.1
(1:6) 37.2
(1:9) 36.9
(1:12) 36.6
(1:15) 36.3

14. Molar Ratio (Methanol ) Vs Yield Curve
38.1
37.2
36.9
36.6
36.3
Yield
(%)
Molar Ratio

15. Molar Ratio ( Methanol ) Vs Reactor Temperature
Molar Ratio
( Methanol)
Reaction Temperature (K)
(1:3) 385.4
(1:6) 384.8
(1:9) 384.4
(1:12) 383.5
(1:15) 375.2

16. Molar Ratio ( Methanol ) Vs Reaction
Temperature Curve
385.4
384.8 384.4
383.5
375.2
370
372
374
376
378
380
382
384
386
388
1:3 1:6 1:9 1:12 1:15
Reaction
Temperatuer
(K)
Molar Ratio

17. Methanol ( 1:3) Vs Ethanol (1:3)
Parameter Methanol (1:3) Ethanol (1:3)
Reactor Temperature (K) 385.4 393.2
Yield (%) 38.1 37

18. Methanol ( 1:3) Vs Ethanol (1:3)
Yield (%) Reactor Temperature (K)
38.1
385.4
37
393.2
Methanol ( 1:3) Ethanol ( 1:3 )

19. DISCUSSION
FROM OUR SIMULATION WE FOUND THAT:
1. There is no significant change when we use Ethanol in lieu of Methanol. We get
slight temperature increase around 2.02% and yield drop around 0.03%. So
Methanol perform slightly better under the above condition.
2. The optimum molar ratio of (Oil:Methanol) is (1:3). We get maximum yield in
this molar ratio