Konversi Oil Palm Frond (OPF) Sebagai Bahan Baku Bioetanol Dengan Proses Pretreatment Organosolv dan Hidrolisa Asam
Oil Palm Frond (OPF) Conversion As Bioethanol Raw Material With Organosolv Pretreatment Process and Acid Hydrolysis
| Authors | ||
| Issue | Vol 2 No 1 (2019): Talenta Conference Series: Science and Technology (ST) | |
| Section | Articles | |
| Galley | ||
| DOI: | https://doi.org/10.32734/st.v2i1.315 | |
| Keywords: | pelepah sawit bahan lignoselulosa delignifikasi hidrolisis feedstock bioethanol | |
| Published | 2019-01-30 |
Abstract
Penelitian ini menggunakan pelepah sawit sebagai sumber holoselulosa yang dikonversi menjadi bahan baku bioetanol (gula total). Penelitian ini bertujuan untuk mempelajari proses pretreatment organosolv berpelarut etanol dan hidrolisa asam terhadap konversi pelapah sawit menjadi gula. Proses pembuatan gula dari pelepah sawit diawali dengan melakukan proses delignifikasi dan dilanjuti dengan proses hidrolisa. Proses delignifikasi berlangsung pada kondisi dengan variasi konsentrasi etanol 35%, 55%, 75%, dan 90% v/v temperatur 100 dan 120 °C dan waktu reaksi 60 dan 90 menit. Selanjutnya untuk proses hidrolisa menggunakan asam sulfat dengan variasi konsentrasi 1%, temperatur 60, 70, 80, 90 dan 100 °C dan waktu reaksi 15, 30, 45, 60 dan 75 menit. Hasil penelitian menujukkan bahwa pada kondisi delignifikasi dengan konsentrasi C2H5OH 75%, temperatur 120 °C, selama 60 menit, serta 1% katalis (H2SO4) dan pada kondisi hidrolisa H2SO4 1%, waktu 30 menit, dan temperatur 90 °C diperoleh yield total gula tertinggi sebesar 93,65 mg/L.
This study used palm fronds as a source of holocellulose which was converted into bioethanol raw material (total sugar). This study aimed to study the organosolv pretreatment process with ethanol solution and acid hydrolysis towards the conversion of palm fronds oil into sugar. The process of sugar production of palm fronds began with a delignification process and continued with the hydrolysis process. The delignification process took place in conditions with variations in ethanol concentration of 35%, 55%, 75%, and 90% (v/v) temperatures of 100 and 120°C and reaction times of 60 and 90 minutes. Furthermore, the hydrolysis process used sulfuric acid with a variation of 1% concentration, temperature 60, 70, 80, 90 and 100°C and reaction time of 15, 30, 45, 60 and 75 minutes. The results showed that in the delignification conditions with a concentration of C2H5OH 75%, temperature of 120°C, for 60 minutes, and 1% catalyst (H2SO4) and hydrolysis conditions H2SO4 1%, 30 minutes time, and the temperature of 90°C, the highest total sugar yield of 93.65 mg/L was obtained.
