Rinanda, Zalza Lola (2020) PROSES PEMISAHAN BITUMEN DARI BATUAN ASBUTON DENGAN PROSES MILLING DAN PENAMBAHAN SURFAKTAN. Masters thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Indonesia merupakan Negara yang kaya akan sumberdaya alamnya. Salah
satunya yang kurang terkembangkan adalah aspal Buton (Asbuton). Asbuton
sendiri dimanfaatkan sebagai bahan alternatif pengganti aspal minyak, yang sudah
semakin sedikit. Namun kendalanya aspal dalam asbuton dilindungi oleh mineral
yang perlu dipisahkan menggunakan proses tertentu. Penelitian pemisahan
bitumen dari asbuton menggunakan hot water process sebelumnya telah
dilakukan, tetapi bitumen yang terlepas dari mineralnya kurang maksimal. Maka
dilakukannya modifikasi proses yang mempengaruhi proses pelepasan aspal
tersebut, untuk meningkatkan recovery. Salah satunya dengan penambahan
surfaktan Sodium Dodecyl Benzene Sulfnate (SDBS) dan wetting agent berupa
Natrium Hidroksida (NaOH). Fokus dari penelitian ini adalah mempelajari
pengaruh penambahan surfaktan dan wetting agent terhadap recovery bitumen.
Proses pemisahan bitumen dari asbuton dalam metode ini dilakukan melalui
proses milling. Proses dilakukan dengan cara mencampur asbuton dengan solar
yang jumlahnya perbandingan antara bitumen dengan solarnya sebesar(rbs) 1:2
dan 1:3 Selanjutnya dilakukan proses milling dengan mencampur campuran solar-
asbuton dengan larutan surfaktan dan wetting agent sebesar 20% terhadap massa
campuran total. Konsentrasi campuran larutan surfaktan SDBS dan NaOH sebesar
25%, 30% dan 35%. Larutan hasil proses milling kemudian dipisahkan secara 3
fase. Lapisan teratasnya kemudian ditimbang dan dihitung massa jenisnya.
Berdasarkan massa jenis larutan yang diperoleh, maka konsentrasi bitumen dapat
ditentukan menggunakan kurva kalibrasi. Hasil dari penelitian ini bahwa
peningkatan rasio wetting agent dan peningkatan cycle menyebabkan penurunan
recovery. Recovery tertinggi sebesar 97% di peroleh pada kondisi rasio wetting
agent 15 % dengan perbandingan bitumen-solar 1:3 dan pengulangan 5 cycle.
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Indonesia is a country that has a lot of natural resources. One of them is
Buton’s asphalt rocks or asbuton. In spite of its many resources, asbuton is not
efficiently used. Asbuton as a natural asphalt contains minerals that had to be
separated to get its bitumen. Bitumen is the preferred geologic term for the sticky,
highly viscous semi-solid hydrocarbon presents in most natural petroleum. It
mostly contains pitch, resin, and asphalt. Bitumen is a natural hydrocarbon and
has mostly replaced tar as the binding agent in asphalt-based roads. Bitumen
separation research using hot water process has already been conducted before,
but the recovery hasn’t reach an optimum value. Hence the process is modified,
by adding Sodium Dodecyl Benzene Sulfonate (SDBS) as surfactant and Natrium
Hidroxide (NaOH) as wetting agent. The aim of this research is to study on the
effect of wetting agent and surfactant addition to recovery by using milling
process. This process include mixing asbuton and diesel fuel, with ratio(rbs) 1:2 ;
1:3. Then adding a mixture of NaOH and SDBS 20% of total mass. Concentration
of this mixture used in this research is 25%, 30%, and 35%. The result of this
process then separated in 3 phases. The top layer which contains diesel fuel and
bitumen then weighed and the density can be calculated. Based on these data,
bitumen’s recovery can be known using calibration curve. From this research can
be concluded that , it is found that the increase in the ratio of wetting agent and
increase in cycle causes a decrease in recovery. The highest recovery is 97%
obtained in the condition of 15% wetting agent ratio with 1: 3 bitumen-solar ratio
and 5 cycle repetition.
| Item Type: | Thesis (Masters) |
|---|---|
| Uncontrolled Keywords: | Asbuton, Bitumen, Proses Milling, Sodium Dodecyl Benzene Sulfonate, asbuton, bitumen, Milling Process, Sodium Dodecyl Benzene Sulfonate |
| Subjects: | Q Science > QD Chemistry > QD63 Extraction Q Science > QD Chemistry > QD63.S4 Separation (Technology) |
| Divisions: | Faculty of Industrial Technology > Chemical Engineering > 24101-(S2) Master Thesis |
| Depositing User: | Zalza Lola Rinanda |
| Date Deposited: | 26 Aug 2020 03:40 |
| Last Modified: | 20 Dec 2023 04:27 |
| URI: | http://repository.its.ac.id/id/eprint/80817 |
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