Advisors: Prof. Dr. Ir. Gede Wibawa, M.Eng Ir. Winarsih - - PowerPoint PPT Presentation

Advisors:

• Prof. Dr. Ir. Gede Wibawa, M.Eng
• Ir. Winarsih

Final Project Seminar

VAPOR-LIQUID EQUILIBRIUM MEASUREMENT FOR BINARY SYSTEMS OF 1-BUTANOL + GLISEROL AND 2-METHYL-1- PROPANOL + GLISEROL AT DIFFERENT TEMPERATURES

Presented by:

Ajeng Puspitasari Yudiputri 2310 100 055 Eviana Dewi Setiawati 2310 100 125 THERMODYNAMICS LABORATORY Chemical Engineering Department - ITS

INTRODUCTION

THERMODYNAMICS LABORATORY

Chemical Engineering Department-ITS

Introduction

Sol silika dari water glass merupakan alternatif pengganti silika aerogel.

1

25% of the domestic diesel obtained from imported ed

Energy Demand

2

renewable alternative fuels BIODIESEL

Solution

4

Equilibrium Data for each components in Transesterification Products

Optimization

• f Separation

3

process of separati ation

• n

and purificat ication ion from impurities and byproducts Transesterification Process

RELATED STUDY

• 2. Coelho et al. (2011))

Related Study of Vapor Liquid Equilibrium Measurements for Binary System of Alcohols+Glycerol

Research

• f

vapour-liquid equilibrium for binary system ethanol+glycerol on the pressure using the othmer-type ebulliometerr at 14 Kpa pressure range up to 96 Kpa

• 3. Shimoyama et al. (2009)

Measurement

• f

the vapour-liquid equilibrium and binary system

• f

methanol+gliserol and ethanol+glycerol using flow method in range temperature 493-573 K

• 1. Shoujanya et al. (2009)

Research of vapour liquid equilibrium of binary system methanol+glycerol at difference pressure using the ebulliometer sweitoslawsky

THERMODYNAMICS LABORATORY

Chemical Engineering Department-ITS

• 4. Zaoui-Djelloul-Daouadji et al.

(2013)

Research

• f

vapor-liquid equilibrium and excess Gibbs free energy function for binary system ethanol + glycerol at different temperatures

• 6. Wiguna dan Irwansyah (2012)

Research

• f

vapor-liquid equilibrium of binary system 1- propanol + glycerol at isothermal conditions

• 7. Akbarina dan Ruslim (2012)

Research of vapor-liquid equilibrium (VLE) in the binary system 2- propanol+glycerol at a temperature of 323.15 K, 333.15K, 343.15K

• 8. Wardani dan Ellena (2013)

Research

• f

vapor-liquid equilibrium (VLE)

• f

the binary systems 2-butanol + glycerol at a temperature range of 313.15 K to 333.15K

THERMODYNAMICS LABORATORY

Chemical Engineering Department-ITS

• 5. Oliveira et al. (2009)

Research of liquid-vapour equilibrium for binary system water+glycerol and (1-propanol, 2-propanol, 1- buthanol)+glycerol using Cubic-Plus Association (CPA) Equation

• f

state method

Related Study of Vapor Liquid Equilibrium Measurements for Binary System of Alcohols+Glycerol

Research Hypothesis

VAPOR-LIQUID EQUILIBRIUM MEASUREMENT FOR BINARY SYSTEMS OF 1-BUTANOL + GLISEROL AND 2-METHYL-1-PROPANOL + GLISEROL

THERMODYNAMICS LABORATORY

Chemical Engineering Department-ITS

OBJECTIVES and ADVANTAGES

Objectives and Advantages

To obtain the vapor-liquid equilibrium data for binary systems of 1- buthanol +glycerol and 2-methyl-1-propanol+glycerol at different temperatures and correlated the experimental data with Wilson, NRTL, and UNIQUAC models As a base reference in distillation process design to enhance the efficiency of alcohol-glycerol separation and as a base reference in an advancement development of solution theory in biodiesel synthesis Objectives: Advantages:

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Experimental Materials

Component Molecular formula Purity 1-butanol C4H10O 0.995 2-metil-1-propanol C4H10O 0.990 Gliserol C3H8O3 0.995 All materials were purchased from Merck, Germany and used without additional purification.

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METHODS

Apparatus

1. Ebulliometer Cell 2. Thermocouple (Four-wire Platinum Resistance Temperature Detector) 3. Condenser 4. Vacuum Pump (Value VG 140) 5. Mercury manometer with a precision of ± 1.0 mmHg 6. Heating System (Controller (Shimaden SR64) with a precision of ± 1/3% (fromDisplayed Value), Temperature Recorder (YOKOGAWA 7563) with a precision of ±0.03 K) 7. Magnetic Stirer 8. Thermolyne 7200 Stirrer

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7 8

Solution with a certain fraction

Experimental Procedures

Oktavian et al. (2013)

• pen

ON close OFF

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RESULTS AND DISCUSSION

Reliability of Experimental Apparatus

AAD

0.1 %

Vapor pressures data of 1-butanol: (o) experimental; and ( ) calculation.

g,h,i taken from Poling et al. (2001)

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Komponen Ag Bh Ci 1-Butanol (C4H10O) 4.6493 1395.14 182.739

Reliability of Experimental Apparatus

Vapor pressures data of 2-metil-1-propanol: (o) experimental; and ( ) calculation.

AAD

0.2 %

j,k,l taken from Poling et al. (2001)

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Chemical Engineering Department-ITS Komponen Aj Bk Cl 2-Metil-1-Propanol (C4H10O) 4.34504 1190.38 166.67

Binary System of 1-Butanol(1)+Glycerol(2)

VLE phase (P-T) diagram for binary system of 1-butanol(1)+glycerol(2) at x1 = 0.2011 VLE phase (P-T) diagram for binary system of 1-butanol(1)+glycerol(2) at x1 = 0.7986 Wilson (1964) Renon dan Prauznitz (1968) Abrams dan Prausnitz (1975)

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Binary System of 1-Butanol(1)+Glycerol(2)

VLE phase (P-x1-y1 ) diagram for binary system

• f 1-butanol(1)+glycerol(2) at 60oC

VLE phase (P-x1-y1 ) diagram for binary system of 1-butanol(1)+glycerol(2) at 65oC The deviations from Raoult's Law is 31.2% Wilson (1964) Renon dan Prauznitz (1968) Abrams dan Prausnitz (1975)

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Fitted Binary Interaction Parameters using Activity Coefficient Models of 1-Butanol(1)+Glycerol(2) System

Model Parameters AADa Wilsonb a12 784.032 2.8% a21 1048.40 NRTLc b12 721.805 3.4% b21 726.573 α 0.30 UNIQUACd ∆u12 99.9234 3.5% ∆u21 172.644

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Binary System of 2-Metil-1-Propanol(1)+ Glycerol(2)

VLE phase (P-T) diagram for binary system of 2-metil-1-propanol (1)+glycerol(2) at x1 = 0.7955 VLE phase (P-T) diagram for binary system of 2-metil- 1-propanol (1)+glycerol(2) at x1 = 0.3020 Wilson (1964) Renon dan Prauznitz (1968) Abrams dan Prausnitz (1975)

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Binary System of 2-Metil-1-Propanol(1)+ Glycerol(2)

VLE phase (P-x1-y1 ) diagram for binary system of 2-metil-1-propanol(1)+glycerol(2) at 50oC VLE phase (P-x1-y1 ) diagram for binary system

• f 2-metil-1-propanol(1)+glycerol(2) at 55oC

The deviations from Raoult's Law is 30.2% Wilson (1964) Renon dan Prauznitz (1968) Abrams dan Prausnitz (1975)

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Fitted Binary Interaction Parameters using Activity Coefficient Models of 2-Metil-1-Propanol(1)+Glycerol(2) System

Model Parameters AADa Wilsonb a12 773.889 5.0% a21 1061.00 NRTLc b12 1035.74 4.3% b21 335.525 α 0.30 UNIQUACd ∆u12 132.701 4.4% ∆u21 131.145

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Henry’s Law constants of 1-butanol obtained from extrapolation at 45oC

Konstanta Henry, untuk Senyawa 1-Butanol pada Suhu 45oC

i i x

H x f

i

        



ˆ lim

Henry’s Law

Calculation of Henry’s Constants

(4-9)

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H = 30.29

i

i

T b a H         1 ln

Van't Hoff Equation :

Plot ln(1/H) vs. (T) for 1-butanol at Different Temperatures

(4-10)

Takishima et al.(1964)

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Calculation of Henry’s Constants

Henry’s Law constants of 2-metil-1-propanol

• btained from extrapolation at 45oC

Konstanta Henry, untuk Senyawa 1-Butanol pada Suhu 45oC

Calculation of Henry’s Constants

Plot ln(1/H) vs. (T) for 2-metil-1-propanol at Different Temperatures

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H = 33.39

i

Table bla bla bla

Equationp a b (AAD)*

1-Butanol

• Eq. (4-10)
• 18.67

4.799 11.1%

2-Metil-1-Propanol

• Eq. (4-10)
• 8.177

1.475 3.0%

Parameters of the van’t Hoff equation (Eq. (4-10)) for 1-Buthanol and 2-Metil-1-Propanol

 

  

n i eriment eriment tHoff Van

H H H n AAD

1 exp exp '

% 100 1 *

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T b a H         1 ln

Van't Hoff Equation : (4-10)

CONCLUSION

• 1. Vapour Liquid Equilibrium

Conclusion

In the present study, isothermal VLE data for binary systems

• f

1- buthanol+glycerol and 2-methyl-1- propanol+gliserol have been measured using a simple quasi-static ebulliometer at different temperatures. The experimental data were well correlated using the Wilson, NRTL and UNIQUAC models with average absolute deviations (AAD) 2.8%, 3.4%, and 3.5% for 1-buthanol+glycerol and 5.0%, 4.3%, 4.4% for 2-methyl-1- propanol+glycerol.

• 2. Henry’s Law Constant

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Henry constant were calculated from experimental by obtaining the ratio of fugasity to mol fraction at limit x1 near to zero. Henry constant that obtained from each temperature variable were correlated by Van’t Hoff equation with AAD for 11% of buthanol and 3% of 2-methyl-1-propanol

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