Kusuma, Nandyojati and Danial, Andi Muhammad (2017) Perancangan Proses Pemisahan Fraksi Berat Dalam Minyak Pelumas Bekas Dengan Vacuum Distillation Dan Thin Film Evaporator. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Pembuangan minyak pelumas bekas ke lingkungan tanpa diproses terlebih dahulu dapat menyebabkan kerusakan lingkungan yang fatal dikarenakan minyak pelumas bekas diklasifikasikan sebagai limbah B3. Pengolahan minyak pelumas bekas meliputi beberapa proses, salah satunya adalah penghilangan kandungan fraksi berat dalam minyak pelumas bekas. Kolom distilasi vakum dengan Thin-film evaporator sebagai reboiler adalah metode yang sesuai dikarenakan dapat memisahkan zat yang memiliki titik didih cukup tinggi seperti fraksi berat pada minyak pelumas bekas. Dimana pehamaman tentang mekanisme perpindahan panas pada Thin-film evaporator masih sedikit. Untuk mengatasi permasalahan diatas maka perlu dilakukan perancangan unit vakum distilasi disertai thin-film evaporator menggunakan software Aspen PlusTM dan MatlabTM. Penelitian ini bertujuan untuk mengetahui efek dari putaran rotor terhadap koefisien perpindahan panas hingga dapat merancang kondisi optimal pada proses distilasi vakum dan thin film evaporator guna memisahkan fraksi berat pada minyak pelumas bekas dengan menggunakan software Aspen PlusTM dan MatlabTM. Diawali dengan membuat permodelan thin film evaporator pada AspenPlusTM dan MatlabTM, yang kemudian dilakukan perhitungan koefisien perpindahan panas thin film evaporator pada berbagai putaran rotor. Koefisien perpindahan panas yang didapatkan diinput ke dalam permodelan thin film evaporator pada Aspen PlusTM, yang kemudian didapatkan kondisi optimum pada distilasi vakum. Dari penelitian ini didapatkan model distilasi vakum dan juga thin film evaporator untuk proses pemisahan fraksi berat dalam minyak pelumas bekas. Kondisi operasi optimum terjadi pada suhu 360oC dan putaran rotor 400 RPM dimana didapatkan persentase minyak pelumas yang didapat sebesar 92,2615 dengan massa produk atas sebesar 143,9872 kg/h dan error sebesar 0,468.
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Disposal of used lubricants into the environment without being processed can cause fatal environmental damage because
used lubricating oils are classified as hazardous and toxic waste. The processing of used lubricating oil includes several processes, one of which is the removal of heavy fraction content in used lubricating oil. Vacuum distillation column with Thin-film
evaporator as reboiler is the appropriate method c
an separate due to substances that have a high enough boiling point as the heavy
fraction of the used lubricating oil. Where there is little concern about the mechanism of heat transfer in Thin
-film evaporator. To overcome the above problems it is necessary to design a distillation
vacuum unit with thin-film evaporator using Aspen PlusTM and MatlabTM software. This study aims to determine the effect of rotation of the agitator of the heat transfer coefficient to be able to design optimal conditions in a vacuum distillation process and thin
film evaporator to separate the heavy fraction in the used lubricating oil by using the software Aspen PlusTM and
MatlabTM. Modeling begins with creating a thin film evaporator at AspenPlusTM and MatlabTM, which then calculate the heat transfer coefficient of thin film evaporator at the various rounds of the agitator. The heat transfer coefficient obtained was inputted
into the thin film evaporator model on Aspen PlusTM, which then obtained the optimum conditions on vacuum
distillation. From this research we get the vacuum distillation and thin film evaporator iv model
for the separation process of heavy fraction in used lubricating oil.
The optimum operating condition was at the temperature of 360oC and 400 RPM for agitator rotational speed when 92,2615% of lube oil fraction from feed stream was going to
the product and 143,9872 kg/h of product flowrate was obtained. The result of validation of thin film evaporation
simulation has an error of 0,468%.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Uncontrolled Keywords: | Aspen Plus, Distilasi Vakum, Matlab, Minyak Pelumas, Thin-Film Evaporator, Lube Oil, Vacuum Distillation |
| Subjects: | T Technology > TP Chemical technology > TP255 Electrochemistry, Industrial. |
| Divisions: | Faculty of Industrial Technology > Chemical Engineering > 24201-(S1) Undergraduate Thesis |
| Depositing User: | Andi Muhammad Danial |
| Date Deposited: | 26 Oct 2017 08:37 |
| Last Modified: | 06 Mar 2019 03:13 |
| URI: | http://repository.its.ac.id/id/eprint/43892 |
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