Sintesis Biodiesel dari Minyak Jelantah dengan Katalis NaOH dengan Variasi Waktu Reaksi Transesterifikasi dan Uji Performanya dengan Mesin Diesel

Rezeika, Sakinah Himav (2017) Sintesis Biodiesel dari Minyak Jelantah dengan Katalis NaOH dengan Variasi Waktu Reaksi Transesterifikasi dan Uji Performanya dengan Mesin Diesel. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Biodiesel telah disintesis dari minyak jelantah hasil penggorengan dari ayam goreng. Sintesis biodiesel dilakukan dengan katalis NaOH menggunakan metode reflux pada suhu 65 °C, perbandingan mol asam oleat : metanol 1:2, massa katalis 0,5% terhadap massa minyak jelantah. Variasi yang digunakan yaitu variasi waktu reaksi 30, 60 dan 90 menit. Sifat fisik dari biodiesel hasil sintesis yang dilakukan adalah densitas, viskositas, titik nyala, dan bilangan asam. Persen hasil tertinggi diperoleh pada variasi waktu 60 sebesar 93,92%. Densitas, viskositas, dan bilangan asam biodiesel mengalami penurunan saat waktu reaksi dinaikan. Hasil GC-MS biodiesel menunjukan kandungan metil ester sebesar 99,5% dengan kelimpahan paling besar adalah metil oleat sebesar 56,808%. Nilai kalor pembakaran dari solar dex, biodiesel 100%, dan biodiesel 10% dalam solar dex secara berturut-turut yaitu 10.710,89 , 9.494, dan 10.822 kal/g. Untuk uji performa pada mesin diesel pada putara 2000 rpm dan pembebanan hingga 1000 watt, nilai Brake Horse Power (BHP) dari bahan bakar solar dex, biodiesel 100%, dan biodiesel 10% dalam solar dex secara berturut-turut yaitu 1263,068, 1257,10, dan 1260, 37 watt serta nilai efisiensi dari bahan bakar solar dex, biodiesel 100%, dan biodiesel 10% dalam solar dex secara berturut-turut yaitu 17,95%, 18,94%, dan 18,14%. =================================================================Biodiesel was synthesized from chicken frying oil. Synthesis of biodiesel was performed with NaOH catalyst using reflux method at 65 ° C, 1: 2 of oleic acid: methanol ratio, and 0.5 wt% catalyst based on oil weight. The variations of time are 30, 60, and 90 minutes. Biodiesel was characterized by its physical properties including density, viscosity, flash point, acid number, and heating value. Highest yield of biodiesel at 60 minute was 93,92%,. Density, viscosity, and acid value of biodiesel decrease when reaction time was increased. The GC-MS analysis result showed that content of methyl ester was 99,5%, which the highest content is methyl oleic 56,808 %. The heating value of solar dex, biodesel 100%, and biodiesel 10% was 10.710,89 kal/g, 9.494 kal/g, 10.822 kal/g respectively. For performance tests on diesel engines at 2000 rpm and load generator until 1000 watt, the value of Brake Horse Power (BHP) from solar dex, biodiesel 100%, and biodiesel 10% was 1263,068 watt, 1257,10 watt, and 1260, 37 watt respectively and value of efficiency of diesel fuel, 100% biodiesel and 10% biodiesel was 17,95%, 18,94% and 18,14% respectively.

Item Type: Thesis (Undergraduate)
Additional Information: RSKi 665.538 4 Rez s-1
Uncontrolled Keywords: Biodiesel, BHP, Efisiensi, Minyak jelantah, Katalis basa, Transesterifikasi
Subjects: Q Science
Q Science > QD Chemistry
T Technology > TJ Mechanical engineering and machinery > TJ799 Diesel motor--Electronic control.
Divisions: Faculty of Mathematics and Science > Chemistry > (S1) Undergraduate Theses
Depositing User: Sakinah Himav Rezeika
Date Deposited: 12 Jan 2018 03:23
Last Modified: 12 Jan 2018 03:23
URI: http://repository.its.ac.id/id/eprint/48242

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