Purifikasi Biodiesel Dari Minyak Dedak Padi Menggunakan Deep Eutectic Solvent: Pengaruh Rasio Molar Kolin Klorida Dan Etilen Glikol Terhadap Kemurnian Dan Yield Biodiesel

Aini, Harmidia Qurotul and Heryantoro, Raeza Praditya (2017) Purifikasi Biodiesel Dari Minyak Dedak Padi Menggunakan Deep Eutectic Solvent: Pengaruh Rasio Molar Kolin Klorida Dan Etilen Glikol Terhadap Kemurnian Dan Yield Biodiesel. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Proses purifikasi diperlukan dalam produksi biodiesel untuk memenuhi standar biodiesel. Purifikasi dilakukan menggunakan deep eutectic solvent (DES) untuk mengurangi impurities pada biodiesel. Impurities yang dihasilkan dari produksi biodiesel berbahan baku minyak dedak padi dengan metode subkritis antara lain: glycerin, free fatty acid (FFA) dan unsaponiafable matter. Tujuan dari penelitian ini adalah untuk. mengetahui pengaruh rasio molar senyawa pembentuk DES terhadap kandungan senyawa fatty acid methyl ester (FAME) dan oryzanol pada biodiesel dan mempelajari karakteristik tiap rasio molar DES terhadap proses ekstraksi biodiesel. DES dibuat dari campuran kolin klorida sebagai Hydrogen Bond Acceptor (HBA) dan etilen glikol sebagai Hydrogen Bond Donor (HBD) dengan rasio molar 1/1,5, 1/2, 1/2,5, 1/3, 1/4, dan 1/5. Minyak dedak padi yang digunakan dalam penelitian ini mengandung 48,31% FFA. Metode air-methanol subkritis digunakan untuk mengkonversi minyak dedak padi menjadi biodiesel dengan kondisi operasi: T = 200 °C, P = 40 bar, t = 3 jam, dan rasio bahan baku dedak padi/methanol/air 1:4:4 (gr/ml/ml). Crude biodiesel yang dihasilkan dengan metode ini mengandung 53,96% FAME, 8,21%±0,5 FFA dan 4,37%±0,2 oryzanol. Hasil menunjukkan bahwa semakin besar rasio molar yang digunakan maka semakin kecil removal efficiency FFA dan oryzanol. Removal efficiency FFA dan oryzanol tertinggi didapatkan pada DES dengan rasio molar kolin klorida etilen glikol 1:2 dengan nilai removal efficiency FFA sebesar 36,72% dan removal efficiency oryzanol sebesar 29,51%. Sementara itu semakin besar rasio molar yang digunakan maka semakin kecil pula biodiesel recovery. Biodiesel recovery terbesar didapatkan pada DES dengan rasio molar kolin klorida etilen glikol 1:2 yaitu 89,90%. ================================================================== Purification is needed in biodiesel production to meet the biodiesel standard. This study purified biodiesel using deep eutectic solvent (DES) to reduce impurities in rice bran oil based biodiesel. The formed impurities in rice bran oil based biodiesel with subcritic method are: water, glyceron, Free Fatty Acid (FFA) and unsaponifable matter.. The objectives of this work were to know the effect of rasio molar choline chloride/ethylene glycol on the content of Fatty Acid Methyl Ester (FAME) and oryzanol in biodiesel and to study characterization of each molar ratio DES on biodiesel extraction process. DES have been synthesized from choline chloride as Hydrogen Bond Acceptor (HBA) and ethylene glycol as Hydrogen Bond Donor (HBD) with molar ratio 1/1,5, 1/2, 1/2,5, 1/3, 1/4 and 1/5. Rice bran oil used in this work contains 48,31% FFA. Water-methanol subcritic method was employed to convert rice bran oil (RBO) into biodiesel under following operation conditions: T = 200 oC, P = 40 bar, t = 3 h and molar ratio of rice bran/methanol/water = 1:4:4 (gr/ml/ml). crude biodiesel obtained in this method contain 53,96% FAME, 8,21%±0,5 FFA and 4,37%±0,2 oryzanol. The result shows that the higher molar ratio the smaller removal efficiency of FFA and oryzanol. The highest removal efficiency of FFA and oryzanol were obtained at DES with molar ratio choline chloride and ethylene glycol 1:2 with 36,72% removal efficiency of FFA and 29,51% removal efficiency of oryzanol. Meanwhile the higher molar ratio the smaller biodiesel recovery obtained. The highest biodiesel recovery was obtained at DES with molar ratio choline chloride and ethylene glycol 1:2 with 89,90% biodiesel recovery.

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: Deep Eutectic Solvent; purifikasi; Biodiesel; minyak dedak padi
Subjects: T Technology > TD Environmental technology. Sanitary engineering > TD646 Sewage--Purification
T Technology > TP Chemical technology > TP156 Crystallization. Extraction (Chemistry). Fermentation. Distillation. Emulsions.
Divisions: Faculty of Industrial Technology > Chemical Engineering > (S1) Undergraduate Theses
Depositing User: Raeza Praditya Heryantoro
Date Deposited: 26 Sep 2017 02:39
Last Modified: 06 Mar 2019 04:01
URI: http://repository.its.ac.id/id/eprint/44295

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