Nada, Shofiyah (2022) Valorisasi Gliserol By-Product Dari Produksi Biodiesel Dari Minyak Sawit Mentah (CPO) Melalui Konversi Katalitik. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Valorisasi gliserol melalui konversi katalitik dilakukan menggunakan katalis basa KOH pada perbandingan massa antara KOH/gliserol sebesar 0.08 (b/b) dengan variasi suhu yakni 230°C dan 300°C dan variasi feedstock, yaitu gliserol murni (98%) dan gliserol mentah denganwaktu total reaksi selama 2 jam. Gliserol mentah didapatkan dari hasil samping transesterifikasi biodiesel dari minyak kelapa sawit mentah (CPO) menggunakan katalis KOH 1% berat minyak sawit mentah dengan variasi CPO : metanol yaitu 1:3, 1:6, dan 2:1 yang dilakukan pada suhu 60°C selama 4 jam dan kecepatan pengadukan 400 rpm. Persentase konversi gliserol mentah terbesar diperoleh dari variasi CPO : metanol (2:1) sebesar 30.67%. Hasil karakterisasi GC–MS produk konversi katalitik gliserol menunjukkan persentase yield terbesar pada variasi feedstock gliserol murni suhu 230°C dengan persentase kelimpahan terbanyak adalah fraksi hidrokarbon rantai panjang berupa senyawa asam stearat atau asam oktadekanoat (persentase kelimpahan sebesar 26.54%). Konversi katalitik variasi feedstock gliserol murni dengan suhu reaksi 300°C menghasilkan asam format (persentase kelimpahan sebesar 24.68%) dengan kelimpahan terbesar dan asam oksalat (persentase kelimpahan sebesar 2.28%). Sementara itu, pada variasi feedstock gliserol mentah menghasilkan asam 2- propenoat (persentase kelimpahan sebesar 5.04%) dan aseton (persentase kelimpahan sebesar 2.84%) serta asam heksadekanoat dengan persentase kelimpahan terbesar (32.04%). Hasil tersebut menunjukkan bahwa produk konversi katalitik gliserol dengan katalis KOH(s) memiliki kandungan senyawa yang berpotensi untuk berbagai aplikasi industri.
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Valorisation of glycerol through catalytic conversion conducted in this study using KOH base catalysts with a mass ratio between KOH / glycerol of 0.08 (w/w) was carried out at temperature variations of 230 °C and 300 °C and feedstock variations, namely pure glycerol (98%) and crude glycerol with a total reaction time of 2 hours. Crude glycerol was obtained from the by-product of biodiesel transesterification from crude palm oil (CPO) using a KOH catalyst of 1% by weight of crude palm oil with variations CPO: methanol such as 1:3, 1:6, and 2:1 which are performed at 60°C for 4 hours and stirring speeds of 400 rpm. The largest percentage of crude glycerol conversion was obtained from the variation CPO: methanol (2:1) of 30.67%. The results of the GC–MS characterization of glycerol catalytic conversion products showed the largest yield percentage is on the variation of pure glycerol feedstock at a temperature of 230°C with the most abundance percentage which was the long-chain hydrocarbon fraction in the form of stearic acid compounds (abundance percentage of 26.54%). Catalytic conversion of pure glycerol feedstock variations with a reaction temperature of 300°C resulted in formic acid (abundance percentage of 24.68%) with the greatest abundance and oxalic acid (abundance percentage of 2.28%). Meanwhile, in the feedstock variation of crude glycerol produced 2-propenoic acid (abundance percentage of 5.04%) and acetone (abundance percentage of 2.84%) and also hexadecanoic acid with the largest abundance percentage (32.04%). These results showed that glycerol catalytic conversion with KOH(s) catalysts produced potential compounds for a wide range of industrial applications.
| Item Type: | Thesis (Other) |
|---|---|
| Additional Information: | RSKi 541.395 Nad v-1 2022 |
| Uncontrolled Keywords: | Valorisasi, Transesterifikasi, CPO, Gliserol, Konversi Katalitik.Valorisasi, Transesterifikasi, CPO, Gliserol, Konversi Katalitik. |
| Subjects: | Q Science > QD Chemistry > QD501 Catalysis. Catalysts. |
| Divisions: | Faculty of Science and Data Analytics (SCIENTICS) > Chemistry > 47201-(S1) Undergraduate Thesis |
| Depositing User: | Mr. Marsudiyana - |
| Date Deposited: | 05 May 2026 04:03 |
| Last Modified: | 08 May 2026 01:31 |
| URI: | http://repository.its.ac.id/id/eprint/132983 |
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