Reaksi Katalisis Produk Cair Hasil Pirolisis Aspal Buton (Asbuton) Menggunakan Katalis CaCO₃ yang Diimpregnasi Ni

Alhaq, Hafizh Firdaus (2025) Reaksi Katalisis Produk Cair Hasil Pirolisis Aspal Buton (Asbuton) Menggunakan Katalis CaCO₃ yang Diimpregnasi Ni. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Penelitian ini bertujuan untuk mempelajari pengaruh impregnasi logam nikel (Ni) dengan variasi konsentrasi (5%, 10%, dan 15%) pada residu padat hasil pirolisis aspal Buton yang disebut residu aspal (RA) dan aktivitasnya pada reaksi katalisis produk cair hasil pirolisis aspal Buton. Impregnasi logam nikel dalam residu padat hasil pirolisis aspal Buton dengan perlakuan hidrothermal, pengeringan, dan kalsinasi. Katalis yang telah disintesis dikarakterisasi menggunakan Difraksi Sinar-X (XRD), Fourier Transform Infared (FTIR), Field Emission Scanning Electron Microscope Energy Dispersive X-ray (FESEM-EDX), dan N2 adsorpsi desorpsi untuk menganalisis struktur kristal, gugus fungsi, morfologi, serta luas permukaan. Hasil penelitian menunjukkan bahwa katalis dengan variasi konsentrasi nikel 10% (Ni10%/RA) memiliki kinerja terbaik dalam mengurangi senyawa oksigenat dalam produk cair hasil pirolisis. Ni pada konsentrasi yang optimum, efektif dalam reaksi pemotongan ikatan C-O selama proses reaksi. Penggunaan CaCO₃ dari residu aspal sebagai agen basa heterogen juga turut mendukung efisiensi reaksi katalisis. Selain karakterisasi struktural dan kimia, analisis terhadap sifat fisik produk cair juga menunjukkan bahwa penggunaan katalis Ni10%/RA memberikan peningkatan kualitas bahan bakar baik dari segi nilai kalor, densitas, maupun kadar belerang. Penelitian ini menyimpulkan bahwa katalis Ni10%/RA berbasis residu aspal Buton memiliki potensi besar dalam meningkatkan kualitas bahan bakar cair hasil pirolisis aspal. Disamping itu, katalis Ni10%/RA berbasis residu aspal Buton dapat menjadi katalis yang berkelanjutan dan ramah lingkungan untuk proses konversi energi terbarukan.
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This study investigates the influence of nickel (Ni) metal impregnation at varying concentrations (5%, 10%, and 15%) on the solid pyrolysis residue of Buton asphalt which is called asphalt residue (RA) and its catalytic performance in converting the liquid pyrolysis products of Buton asphalt. The impregnation of Ni into the pyrolysis residue was conducted through hydrothermal treatment, followed by drying and calcination. The synthesized catalysts were characterized using X-ray Diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR), Field Emission Scanning Electron Microscopy coupled with Energy Dispersive X-ray (FESEM-EDX), and N₂ adsorption–desorption analysis to determine their crystal structure, functional groups, morphology, and surface area. The results revealed that the catalyst with 10% Ni loading (Ni10%/RA) exhibited the most effective performance in reducing oxygen content in the pyrolysis oil. Ni at its optimal concentration exhibits effective activity in facilitating C–O bond scission during the reaction process. The presence of CaCO₃ derived from the asphalt residue as a heterogeneous basic component also enhanced the catalytic efficiency. Furthermore, physical property analysis of the resulting liquid product indicated that the Ni10%/RA catalyst improved the fuel quality in terms of calorific value, density, and sulfur content. Overall, this study demonstrates that the Ni10%/RA catalyst derived from Buton asphalt residue holds strong potential for enhancing the quality of liquid product from asphalt pyrolysis and represents a sustainable, environmentally friendly option for renewable energy conversion processes.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Aspal Buton, Hidrotermal, Katalis, Pirolisis, Residu aspal Buton Asphalt, Metal Impregnation, CaCO₃ Catalyst, Catalysis, Pyrolysis
Subjects:	Q Science > QD Chemistry > QD281 Pyrolysis Q Science > QD Chemistry > QD501 Catalysis. Catalysts. Q Science > QD Chemistry > QD79.T38 Thermal analysis
Divisions:	Faculty of Science and Data Analytics (SCIENTICS) > Chemistry > 47201-(S1) Undergraduate Thesis
Depositing User:	Hafizh Firdaus Alhaq
Date Deposited:	19 Nov 2025 06:59
Last Modified:	19 Nov 2025 06:59
URI:	http://repository.its.ac.id/id/eprint/128806

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