Pengaruh Kecepatan Impeller Terhadap Emulsi Minyak Solar-Air Dalam Tangki Berpengaduk

Adelina, Dina and Hastuti, Fenni Woro (2018) Pengaruh Kecepatan Impeller Terhadap 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 kecepatan putar impeller, komposisi surfaktan, konsentrasi surfaktan dan penambahan air terhadap karakteristik emulsi solar – air. Karakteristik tersebut dinilai sebagai kestabilan emulsi minyak solar-air. Variabel penelitian ini adalah komposisi jenis surfaktan, konsentrasi surfaktan, penambahan pre-emulsi, kecepatan pengadukan, penambahan CMC, kandungan air, dan penambahan sonikasi. Lima tahapan dilakukan dalam penelitian ini yaitu persiapan bahan, persiapan alat, proses pre-emulsi, proses emulsi dan karakterisasi emulsi minyak solar-air. Karakterisasi emulsi minyak solar-air antara lain pengukuran densitas, pengukuran viskositas, stabilitas emulsi seperti pengamatan visual, mengukur tinggi lapisan di tabung uji stabilitas, mengukur volume total lapisan yang dihasilkan, mengukur droplet size, dan zeta potensial. Hasil dari karakterisasi emulsi solar-air didapatkan surfakatan yang cocok untuk emulsi minyak solar air adalah surfaktan campuran 76,6% lecitin – 23,4% triton x-100 tanpa CMC dengan konsentrasi 1%. Pre-emulsi dapat meningkatkan stabilitas emulsi. Kecepatan putar impeller paling baik adalah 1900 rpm. Penambahan air (aquabidest) yang optimal dengan volume air 5%, dan penambahan air hingga 50% masih memberikan hasil emulsi minyak solar – air yang stabil. Penambahan sonikasi mampu meningkatkan kestabilan emulsi. =========== The purposes of this research are to learn about the effect of impeller speed, compotition of the surfactant, concentration of the surfactant, and the addition of water toward water-diesel fuel emulsion characteristic. This characteristic rated as a stability of water-diesel fuel emulsion. Variables in this research are types of surfactant compotition, concentration of surfactant, addition of pre- emulsion, speed of the impeller, addition of CMC (Carboxymethyl cellulose), water content, and sonication process. Five steps of this research are preparation of material and equipment, pre-emulsion process, mulsification process, and water-diesel fuel emulsion characterization. The characterizations are the density, viscosity, stabilization measurement of the emulsion by observing the sedimen in the experiment tube, measuring total volume layer produced, droplet size, and zeta potensial. The result from this characterization is that the suitable surfactant for a stable emulsion is surfactant with 76,6% lecitin-23,4% triton x-100 without CMC compotition within 1% concentration. Pre-emulsion process can increase the stability of the emulsion. The best speed from this reasearch is 1900 rpm and the optimum water content is 5%, but the addition of water until 50% still give stable water-diesel fuel emulsion. Sonication process can increase the stability of emulsion.

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: emulsion; surfactant; water diesel fuel; emulsification; impeller speed
Subjects: T Technology > TP Chemical technology
T Technology > TP Chemical technology > TP156 Crystallization. Extraction (Chemistry). Fermentation. Distillation. Emulsions.
T Technology > TP Chemical technology > TP255 Electrochemistry, Industrial.
Depositing User: Dina Adelina
Date Deposited: 07 Mar 2018 04:28
Last Modified: 07 Mar 2018 04:28
URI: http://repository.its.ac.id/id/eprint/49910

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