Sintesis Katalis Oksida Berbasis-CeO2 (CeO2-La2O3-NiO) untuk Reaksi Deoksigenasi Minyak Goreng Bekas

Octora, Radhila Widya Putri (2025) Sintesis Katalis Oksida Berbasis-CeO2 (CeO2-La2O3-NiO) untuk Reaksi Deoksigenasi Minyak Goreng Bekas. Masters thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Sintesis katalis oksida berbasis-CeO2 (CeO2-La2O3-NiO) menggunakan berbagai kandungan mikrokristralin selulosa (0; 12,5; 25; dan 37,5%) telah berhasil dilakukan. Material hasil sintesis dikarakterisasi menggunakan TGA, FTIR, XRD, FESEM-EDX, adsorpsi-desorpsi N₂, serta TEM. Analisis XRD mengonfirmasi bahwa semua sampel menunjukkan fase CeO₂ yang stabil. Penambahan kandungan MCC meningkatkan ukuran pori dan luas permukaan katalis, di mana sampel BCOe-25wt% MCC memiliki struktur mesopori dominan dengan luas permukaan mencapai 52,36 m2/g dan ukuran pori mencapai 3,94 nm. Reaksi deoksigenasi minyak goreng bekas dilakukan pada reaktor semi-batch pada 360 °C selama 4 jam dengan katalis sebanyak 1% dari berat minyak. Katalis BOCe-12,5wt% MCC menunjukkan aktivitas deoksigenasi dengan konversi 100%, hasil produk cair 45%, dan selektivitas hidrokarbon 99%. Hasil ini menunjukkan potensi oksida berbasis-CeO2 (CeO2-La2O3-NiO) sebagai katalis yang efektif untuk produksi biofuel.
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The synthesis of CeO2-based oxide utilizing varying proportions of microcrystalline cellulose (MCC) (0; 12.5; 25; and 37.5%) has been successfully achieved. The resulting materials were characterized through XRD, FESEM, N2 adsorption-desorption isotherm, and TGA- DTG. XRD analysis confirmed that all synthesized exhibited a stable CeO₂ phase. Notably, increasing the MCC content led to an improvement in the catalysts' pore volume and surface area, with the BCOe-25wt% MCC sample exhibiting a primarily mesoporous structure and minimal micropore contribution with surface area of 52,36 m2/g and pore size of 3,94 nm The catalytic deoxygenation of waste cooking oil (WCO) was carried out in a semi-batch reactor at 360 °C for a duration of 4 hours, with a catalyst loading set at 1% of the WCO's weight. The BCOe-12.5wt% MCC catalyst exhibited deoxygenation activity, achieving a 100% conversion, a liquid product yield of 45%, and hydrocarbon selectivity of 99%. The excellent catalytic performance is due to the synergistic interaction between Ni, Ce, and La metals, combined with improved properties that promote the deoxygenation reaction. These results highlight the potential of CeO2-based oxide as an effective catalyst for biofuel production.

Item Type:	Thesis (Masters)
Additional Information:	Penulis mengucapkan terima kasih kepada Kementerian Pendidikan, Kebudayaan, Riset, dan Teknologi Republik Indonesia yang telah memberikan dukungan dana untuk Skema Penelitian Pascasarjana melalui nomor hibah 1818/PKS/ITS/2024
Uncontrolled Keywords:	CeO2-Based Oxide (CeO2-La2O3-NiO), Biofuel, Deoksigenasi, Microcrystalline Cellulose, Waste Cooking Oil, CeO2-Based Oxide (CeO2-La2O3-NiO), Biofuel, Deoxygenation, Microcrystalline Cellulose, Waste Cooking Oil
Subjects:	Q Science > QD Chemistry > QD281 Pyrolysis Q Science > QD Chemistry > QD501 Catalysis. Catalysts.
Divisions:	Faculty of Science and Data Analytics (SCIENTICS) > Chemistry > 47101-(S2) Master Thesis
Depositing User:	Radhila Widya Putri Octora
Date Deposited:	05 Feb 2025 01:56
Last Modified:	05 Feb 2025 01:56
URI:	http://repository.its.ac.id/id/eprint/118032

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