Pengukuran Kesetimbangan Uap-Cair Sistem Terner Isotermal Dietil Karbonat+Isooktana+Etanol dan Dietil Karbonat+Toluena+Etanol pada Temperatur 303.15-323.15 K

Iswara, Putu Citra (2017) Pengukuran Kesetimbangan Uap-Cair Sistem Terner Isotermal Dietil Karbonat+Isooktana+Etanol dan Dietil Karbonat+Toluena+Etanol pada Temperatur 303.15-323.15 K. Undergraduate thesis, Institut Teknologi Sepuluh Nopember Surabaya.

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Abstract

Penelitian ini bertujuan untuk mendapatkan data
kesetimbangan uap-cair (VLE) sistem terner isotermal
dietil karbonat+isooktana+etanol dan dietil
karbonat+toluena+etanol pada rentang temperatur
303.15–323.15 K yang akurat. Peralatan eksperimen
yang digunakan pada penelitian ini adalah ebulliometer
sederhana yang dikembangkan oleh Oktavian et al., Fuel
107(2013) 47-51. Pada penelitian ini, dilakukan lagi
validasi alat dan metodenya dengan membandingkan
tekanan uap murni dietil karbonat (DEC), isooktana,
toluena, dan etanol dengan data literatur. Dari hasil
validasi, diperoleh average absolute deviation (AAD)
tekanan uap murni berturut-turut sebesar 1.7, 0.9, 1.2 dan
0.8%. Penambahan DEC ke dalam campuran
isooktana+etanol dan toluena+etanol mampu
menurunkan tekanan uap campuran secara signifikan.
Data eksperimen dibandingkan dengan hasil prediksi
model Wilson, NRTL, UNIQUAC dimana pasangan
interaksi parameter biner dioptimasi hanya dari VLE data
biner memberikan AAD berturut-turut sebesar 4.0, 3.9 dan 1.4% untuk sistem dietil karbonat+isooktana+etanol,
dan 5.0, 4.5 dan 3.3% untuk sistem dietil
karbonat+toluena+etanol.
Data eksperimen juga dibandingkan dengan
model prediksi menggunakan grup konstribusi model
UNIFAC, memberikan AAD sebesar 1.4 dan 6.8%
berturut-turut untuk sistem dietil
karbonat+isooktana+etanol dan dietil karbonat+toluena
+etanol.
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The objective of this work was to measure
isothermal ternary vapor-liquid equilibrium (VLE) for
diethyl carbonate + isooctane + ethanol and diethyl
carbonate + toluene + ethanol systems at the temperature
range of 303.15 – 323.15 K. The experimental apparatus
used in this work was simple ebulliometer as developed
by Oktavian et al., Fuel 107 (2012) 47-51. In this work,
the validation of the apparatus and method were checked
by comparing the measured vapor pressure of pure
diethyl carbonate, isooctane, toluene, and ethanol with
the literature data giving average absolute deviation
(AADs) of 1.7, 0.9, 1.2 and 0.8%, respectively. The
addition of DEC into isooctane + ethanol and toluene +
ethanol mixtures was capable of reducing the vapor
pressure significantly. The experimental data were
compared to the prediction results of Wilson, NRTL,
UNIQUAC models where binary interaction parameter
pairs were fitted from binary VLE data only giving AADs of 4.0, 3.9 and 1.4%, respectively for diethyl
carbonate + isooctane + ethanol system and 5.0, 4.5 and
3.3%, respectively for diethyl carbonate + toluene +
ethanol system . The experimental data were compare
with predictive UNIFAC group contribution model as
well giving AADs of 1.4 and 6.8% for diethyl carbonate
+ isooctane + ethanol and diethyl carbonate + toluene +
ethanol systems, respectively.

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	Kesetimbangan uap-cair, dietil karbonat, etanol, isooktana, toluena, Wilson, NRTL, UNIQUAC, UNIFAC, vapor-liquid equilibrium, diethyl carbonate, ethanol, isooctane
Subjects:	T Technology > TP Chemical technology
Divisions:	Faculty of Industrial Technology > Chemical Engineering > 24201-(S1) Undergraduate Thesis
Depositing User:	Putu Citra Iswara
Date Deposited:	03 Oct 2017 08:22
Last Modified:	03 Jan 2018 03:43
URI:	http://repository.its.ac.id/id/eprint/43986

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