Pengaruh Kadar Air Terhadap Stabilitas Emulsi Minyak Solar - Air Dalam Tangki Berpengaduk

Anindita, Dea Puri and Muqorrobin, Wildan (2018) Pengaruh Kadar Air Terhadap Stabilitas Emulsi Minyak Solar - Air Dalam Tangki Berpengaduk. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Tujuan dari penelitian ini adalah mempelajari pengaruh kadar air dan suhu operasi terhadap kestabilan emulsi minyak solar – air. Variabel penelitian ini adalah kadar air (10, 20, 30, 40, 50%) serta suhu operasi yang digunakan (30, 40, 50, 60oC). Lima tahapan dilakukan dalam penelitian ini yaitu persiapan bahan, persiapan alat, proses pre-treatment, proses pembuatan emulsi dan karakterisasi emulsi minyak solar-air. Proses pre-treatment dimulai dengan surfaktan ditambahkan sebanyak 1% yang berupa 45,5% lecitin dan 54,5% tween80 ke dalam minyak solar, kemudian diaduk dalam tangki dengan kcepatan 1900 rpm menggunakan impeller jenis disk turbine dan suhu operasi diatur sesuai variabel selama 15 menit. Air (aquabidest) sesuai variabel disiapkan dengan dilarutkan CMC sebanyak 0,5% air ke dalamnya. Dilanjutkan dengan proses pembuatan emulsi, air dicampur secara bertahap tetes demi tetes ke dalam tangki berpengaduk menggunakan peristaltic pump dengan kecepatan 2 ml/mnt. Setelah air habis, proses emulsifikasi tetap berlangsung selama 20 menit pengadukan dengan suhu operasi sesuai variabel. Karakterisasi emulsi minyak solar-air antara lain pengukuran densitas, pengukuran viskositas, stabilitas emulsi seperti pengamatan visual, mengukur tinggi lapisan di tabung uji stabilitas, mengukur droplet size, dan pengukuran rasio absorbansi. Hasil dari karakterisasi emulsi solar-air didapatkan bahwa semakin banyak penambahan kadar air maka kestabilan emulsi minyak solar – air akan semakin menurun dan semakin tinggi suhu yang digunakan maka semakin stabil emulsi yang dihasilkan. Dalam penelitian ini hasil yang memberikan kestabilan emulsi paling optimal yaitu pada penambahan air sebanyak 10% dengan suhu 60oC. ===================================================================================================== The objective of this research is to study the correlation between water content addition and operation temperature used in regard to the diesel-water emulsion stability. Variables used in this research were (10%, 20%, 30%, 40%, and 50%) of water content while (30oC, 40oC, 50oC, and 60oC) were used as operation temperature variables. There are five steps conducted in this research; material preparation, instrument preparation, pre-treatment process, forming emulsion process, and diesel-water emulsion characterization. Pre-treatment process begin with the addition of 1% surfactant that consist of 45,5% lecitin and 54,5% tween80 into diesel oil, in advance it was stirred in a vessel with 1900 rpm stirring speed using disk turbine impeller and operation temperature adjusted in accordance to variable for 15 minutes. Water (aquabidest) required for the variables was prepared with the dilution of 0.5% CMC into it. Followed by the emulsion preparation, drops of water added into the stirring vessel using peristaltic pump with 2 ml/m flow rate. Emulsification process continued for 20 minutes after the water completely drained out with stirring speed and operation temperature set accordance to variable. The characterization of diesel-water oil are as follow; density measurement, viscosity measurement, stability of emulsion such as visual observation, layer height in test tube, droplet size calculation and absorbance ratio calculation. The characterization of diesel-water oil obtained in this research show emulsion of diesel-water oil stability decreased as the more water content added whereas emulsion stability increase as higher temperature used. This research concludes that 10% of water content with 60oC operation temperature gave the most optimal emulsion stability.

Item Type: Thesis (Undergraduate)
Additional Information: RSK 660.294 514 Ani p-1
Uncontrolled Keywords: emulsi, emulsifikasi, kadar air, kestabilan, rasio absorbansi, suhu
Subjects: H Social Sciences > HF Commerce > HF5686 Fuel
T Technology > TD Environmental technology. Sanitary engineering > TD375 Turbidity--Measurement.
T Technology > TP Chemical technology > TP156 Crystallization. Extraction (Chemistry). Fermentation. Distillation. Emulsions.
T Technology > TP Chemical technology > TP343 Liquid and gaseous fuel
Divisions: Faculty of Industrial Technology > Chemical Engineering > 24201-(S1) Undergraduate Thesis
Depositing User: Dea Puri Anindita
Date Deposited: 17 Feb 2021 02:10
Last Modified: 17 Feb 2021 02:10
URI: https://repository.its.ac.id/id/eprint/53953

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