Windasari, Flowrencia (2025) Sintesis dan Karakterisasi Katalis Nikel Timah Terimpregnasi pada Karbon Aktif (10NixSn/AC) serta Kinerja Katalisisnya dalam Konversi RBDPO (Refined Bleached Deodorized Palm Oil) Menjadi Biofuel dengan Proses Deoksigenasi. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Konversi RBDPO (Refined Bleached Deodorized Palm Oil) menjadi biofuel melalui proses deoksigenasi merupakan salah satu pendekatan menjanjikan dalam pengembangan energi terbarukan. Pada penelitian ini telah dilakukan sintesis katalis 10NixSn/AC (x = 5, 10, 25, dan 50% w/w Ni), karakterisasi serta evaluasi kinerja katalis dalam reaksi deoksigenasi asam palmitat sebagai senyawa model, serta RBDPO sebagai bahan baku aktual. Hasil reaksi dianalisis dengan GC-FID dan GC-MS. Katalis disintesis melalui metode kopresipitasi hidrotermal, kemudian dikarakterisasi dengan XRD, BET, H2-TPR, TPD-NH3, dan FESEM-EDX. Hasil karakterisasi menunjukkan bahwa katalis 10Ni50Sn/AC memiliki karakteristik paling unggul dengan terbentuknya fasa intermetalik Ni3Sn, Ni3Sn2, dan Ni3Sn4, serta menunjukkan stabilitas termal yang baik, luas permukaan memadai, dan jumlah situs asam yang tinggi. Katalis 10Ni50Sn/AC menunjukkan performa terbaik dalam reaksi deoksigenasi asam palmitat pada suhu 320°C, tekanan H2 30 Bar dan lama reaksi 24 jam dengan konversi mencapai 100% dan yield tinggi terhadap n-alkana C15 dan C16. Reaksi deoksigenasi RBDPO menghasilkan konversi sebesar 100% dan selektivitas serta yield hidrokarbon sebesar 85,13%. Produk hidrokarbon berupa n-pentadekana (C15) dan n-heptadekana (C17), yang menunjukkan dominasi jalur reaksi dekarboksilasi (DCO) dan dekarboksilasi parsial (DCO2). Temuan ini sejalan dengan komposisi utama asam lemak dalam RBDPO, yaitu asam palmitat dan asam oleat. Penelitian ini menunjukkan bahwa katalis 10Ni50Sn/AC dapat menjadi kandidat kuat untuk aplikasi konversi biomassa menjadi biofuel, dengan efisiensi tinggi dan potensial untuk skala industri.
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Conversion of RBDPO (Refined Bleached Deodorized Palm Oil) into biofuel through deoxygenation process is one of the promising approaches in renewable energy development. In this study, the synthesis of 10NixSn/AC catalyst (x = 5, 10, 25, and 50% w/w Ni), characterization and evaluation of catalyst performance in the deoxygenation reaction of palmitic acid as a model compound, and RBDPO as an actual raw material have been carried out. The reaction results were analyzed by GC-FID and GC-MS. The catalyst was synthesized by hydrothermal coprecipitation method, then characterized by XRD, BET, H2-TPR, TPD-NH3, and FESEM-EDX. The characterization results showed that the 10Ni50Sn/AC catalyst had the most superior characteristics with the formation of intermetallic phases of Ni3Sn, Ni3Sn2, and Ni3Sn4, and showed good thermal stability, adequate surface area, and high number of acid sites. The 10Ni50Sn/AC catalyst showed the best performance in the deoxygenation reaction of palmitic acid at a temperature of 320°C, a H2 pressure of 30 Bar and a reaction time of 24 hours with a conversion reaching 100% and high yields for n-alkanes C15 and C16. The RBDPO deoxygenation reaction produced a conversion of 100% and a selectivity and hydrocarbon yield of 85.13%. The hydrocarbon products were n-pentadecane (C15) and n-heptadecane (C17), which showed the dominance of the decarboxylation (DCO) and partial decarboxylation (DCO2) reaction pathways. This finding is in line with the main composition of fatty acids in RBDPO, namely palmitic acid and oleic acid. This study shows that the 10Ni50Sn/AC catalyst can be a strong candidate for biomass conversion applications into biofuels, with high efficiency and potential for industrial scale.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Biofuel, Deoksigenasi, Karbon Aktif, Katalis NiSn, RBDPO Activated Carbon, Biofuel, Deoxygenation, NiSn Catalyst, RBDPO |
| Subjects: | Q Science Q Science > QD Chemistry Q Science > QD Chemistry > QD501 Catalysis. Catalysts. |
| Divisions: | Faculty of Science and Data Analytics (SCIENTICS) > Chemistry > 47201-(S1) Undergraduate Thesis |
| Depositing User: | Flowrencia Windasari |
| Date Deposited: | 06 Aug 2025 04:11 |
| Last Modified: | 06 Aug 2025 04:11 |
| URI: | http://repository.its.ac.id/id/eprint/127729 |
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