PREPARASI, KARAKTERISASI, DAN UJI KINERJA KATALIS NiS BERPENDUKUNG Si/Al DENGAN TEMPLATE PORI EDTA UNTUK HYDROCRACKING CPO MENJADI BIOFUEL

NATALIA, RAHEL and Hasanudin, Hasanudin (2025) PREPARASI, KARAKTERISASI, DAN UJI KINERJA KATALIS NiS BERPENDUKUNG Si/Al DENGAN TEMPLATE PORI EDTA UNTUK HYDROCRACKING CPO MENJADI BIOFUEL. Undergraduate thesis, Sriwijaya University.

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Abstract

Preparation of NiS catalyst supported on SiO₂-Al₂O₃ with EDTA pore template was carried out by impregnating Ni metal into SiO₂-Al₂O₃ EDTA, followed by calcination, sulfidation, and hydrocracking processes with CPO. This study aims to enhance the activity and selectivity of the catalyst in breaking down fatty acid molecules from CPO into the desired biofuel fractions. The hydrocracking process was conducted at three different temperatures, namely 250°C, 300°C, and 350°C. Based on XRF analysis, the sulfur content in NiS/SiO₂-Al₂O₃ increased significantly after the sulfidation process, from 0.36% to 3.87%. This indicates that the sulfidation process successfully converted NiO in the catalyst into nickel sulfide (NiS). The PSA analysis results showed that the average particle size of NiS/SiO₂-Al₂O₃ catalyst was 44.41 µm. Characterization using SAA with the BET method revealed that the NiS/SiO₂-Al₂O₃ catalyst had a surface area of 27.57 m²/g, a pore volume of 0.10 cm³/g, and a pore diameter of 25.45 nm. The XRD analysis results showed the presence of SiO₂ peaks at 2θ = 21.85°, 28.38°, and 31.32°; Al2O3 peaks at 2θ =35,94°; NiO peaks at 2θ = 36.04°, 37.18°, 43.31° and 62.80°; and NiS peaks at 2θ = 31.21°, 35.95°, 37.93°, 50.13°, and 55.24°. The GC-MS analysis of hydrocracking products using NiS/SiO₂-Al₂O₃ catalyst showed the highest biogasoline selectivity of 47.96% at a temperature of 350°C. Keywords : CPO, Hydrocracking, Catalyst, Process, EDTA Template

Item Type:	Thesis (Undergraduate)
Subjects:	Q Science > QD Chemistry > QD450-801 Physical and theoretical chemistry
Divisions:	08-Faculty of Mathematics and Natural Science > 47201-Chemistry (S1)
Depositing User:	Rahel Natalia
Date Deposited:	23 May 2025 05:21
Last Modified:	23 May 2025 05:21
URI:	http://repository.unsri.ac.id/id/eprint/173820

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