Etanolisi Olein Sawit Dengan Katalis Potassium Hidroksida

J. Utomo; A. R. Ardiyanti; T. Prakoso; A. Fransiska

doi:10.14710/reaktor.9.2.79-85

DOI: https://doi.org/10.14710/reaktor.9.2.79-85

Etanolisi Olein Sawit Dengan Katalis Potassium Hidroksida

*J. Utomo - , Indonesia

A. R. Ardiyanti - , Indonesia

T. Prakoso - , Indonesia

A. Fransiska - , Indonesia

Published: 19 Jun 2017.

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Abstract

Biodiesel merupakab sumber energy alternatif yang ramah lingkungan dan dapt diperbarui, hasil reaksi transesterifikasi atau alkoholisis. Etanol digunakan sebagai bahan baku reaksi transesterifikasi. Minyak nabati yang digunakan adalah olein kelapa sawit. Etanolisis dilangsungkan dalam reaktor batch berpengaduk dengan memvariasikan temperatur (40 ⁰C dan 60 ⁰C), perbandingan molar etanol terhadap minyak (3:1 dan 9:1), dan konsentrasi katalis KOH (0,5% b/b minyak dan 1,5% b/b minyak). Pengaruh setiap parameter terhadap konversi dianalisis dengan rancangan percobaan factorial 2³ dengan center point. Konversi reaksi dihitung berdasarkan analisis kadar gliserol total dan bebas menurut metode AOCS Ca 14-56. Variabel yang paling berpengaruh terhadap konversi adalah jumlah etanol yang diumpankan. Analisis varian menunjukkan adanya interaksi antar masing-masing parameter. Konversi maksimum sebesar 96,82% tercapai saat 60 ⁰C, rasio molar 3:1, dan konsentrasi KOH 1,5% b/b minyak. Densitas etil ester yang dihasilkan dari percobaan adalah 0,852-0,894 gr/cm³ serta viskositas kinematik sebesar 1,64-5,09 mm²/s.

Kata kunci : biodiesel, etanolisis, konversi, transesterifikasi

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Keywords: biodiesel, etanolisis, konversi, transesterifikasi

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Section: Research Article

Language : INDONESIA

In Volume 09 No. 02 Desember 2005

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