Pemodelan dan Simulasi Stripping Gas Karbondioksida (Co2) dari Larutan Methyldiethanolamine (MDEA) Berpromotor dalam Kolom Berpacking

Kurniawan, Muhammad Fikri and Setyawan, Gilang Adi (2018) Pemodelan dan Simulasi Stripping Gas Karbondioksida (Co2) dari Larutan Methyldiethanolamine (MDEA) Berpromotor dalam Kolom Berpacking. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Gas karbondioksida (CO2) pada suhu yang sangat rendah (-78oC, 1 atm) akan membeku dan menyumbat sistem-sistem perpipaan. Pada proses sintesa amoniak, gas CO2 bersifat racun untuk katalis karena dapat menutup bagian yang aktif dari katalis sehingga menghambat kinerja dari katalis. Proses pemisahan gas CO2 terdiri dari proses absorbsi dan proses stripping. Proses stripping merupakan proses regenerasi pelarut yang kaya gas CO2 (rich solution). Regenerasi pelarut sangat penting agar pelarut dapat digunakan kembali untuk proses absorbsi.
Pada penelitian ini akan dilakukan pemodelan dan simulasi proses stripping gas CO2 dari larutan MDEA(20%volume) berpromotor dalam kolom berpacking menggunakan software MATLAB® R2015a 8.5 dengan pendekatan rate-based modeling. Model matematis dibuat berdasarkan sistem stripping yang dilengkapi kondenser dan reboiler. Penyelesaianan numerik menggunakan metode Ordinary Differential Equation (ODE) 45. Data yang didapat akan divalidasi dengan membandingkan data hasil simulasi dengan data eksperimen. Variabel penelitian berupa suhu larutan masuk stripper, konsentrasi dan jenis promotor.
Pada suhu masuk pelarut 378,15 K dan tekanan 2 atm dengan konsentrasi promotor PZ sebesar 5% didapat nilai removal CO2 tertinggi sebesar 87,50%. Peningkatan nilai suhu larutan masuk meningkatkan konstanta laju reaksi dan konsentrasi promotor akan meningkatkan nilai enhancement factor sehingga nilai removal CO2 juga meningkat. Hasil validasi menunjukkan error untuk promotor PZ, Glisin dan DEA berturut-turut sebesar 8,05%, 13,96% dan 24,44%.
========================================================================================================
Carbon doxide gas (CO
2
) at very low temperature
(
-
78
o
C, 1
atm)
will be freezing
and
clogging
the
piping systems.
In ammonia
synthesis process, CO
2
gas tend to become to
xic for the catalyst as
its cover
the active site of the catalyst so that obstruct the catalyst
performance. CO
2
gas separation process consists of absorption
and stripping process.
Stripping process is a solvent regeneration
which is rich of CO
2
gas called rich solution.
Solvent regenera
tion
beco
mes vital so that the solvent could be reused for the absorption
process.
This experiment would be done by modeling and simulation
of CO
2
gas stripping process from
promot
ed
MDEA
solution
(20%volume)
in packed column using MATLAB
®
R201
5
a
8.5
software
by rate
-
based modeling approximation. Mathematical
modeling adopted from
the
stripping
system that
equipp
ed
with
condenser and reboiler
. Numerical solution
solved
by
ordinary
differential equation 45
method.
The
data obtained wi
l
l be
validate
d
by
comparing the result with
experimental data
. The
research
variable
are solution inlet temperature
,
concentration
and
the
type
s
of promotor
.
The highest CO
2
removal is 87,05% at solution inlet
temperature 378.15 K and colum pressure 2 atm with 5% promotor PZ concentration. The increasing of solution
inlet temperature
will
increase reaction rate constant and
promotor concentration lead
s
to
greater
enhancement factor so that
increasing the CO
2
removal
..
The
result of
validation
data
for PZ, DEA and Glycine
induce
8,05
%
, 13,96% and 24,44%
error
value.

Item Type:	Thesis (Undergraduate)
Additional Information:	RSK 660.284 25 Kur p-1 3100018074793
Uncontrolled Keywords:	stripping CO2, MDEA, promotor, pemodelan, simulasi.
Subjects:	Q Science > QD Chemistry > QD117 Absorption
Divisions:	Faculty of Industrial Technology > Chemical Engineering > 24201-(S1) Undergraduate Thesis
Depositing User:	Setyawan Gilang Adi
Date Deposited:	06 Feb 2018 03:58
Last Modified:	29 Jul 2025 03:37
URI:	http://repository.its.ac.id/id/eprint/49956

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