Zainal Fanani, Wan Ryan Asri, Betty Dwiyanti, Nino Rinaldi, Roni Maryana, Muhammad Al Muttaqii, Fahma Riyanti, Ady Mara, Rahadian Zainul, Hasanudin Hasanudin
The development of hydrocracking catalysts for crude palm oil (CPO) is a challenging process due to its limited textural or pore accessibility and low acidity properties. Therefore, this study aims to develop a series of SiO2-Al2 O3-x/NiMo catalysts using different Al mass (x = 5, 10, 25 g) assisted with EDTA to enhance their physicochemical properties. During the procedures, bimetallic NiMo species were dispersed into SiO2-Al2 O3-x using the wet impregnation method. The structural, textural, surface morphology, particle size distribution, and acidity properties of the products were then assessed. Catalytic activity of catalysts on hydrocracking of CPO was evaluated at 350 °C for 2 h, H2 gas pressure of 20 bar, and mixed at 1500 rpm. The results showed that increasing Al mass caused an increment in the total acidity, acid site density, and surface area of SiO2-Al2 O3-x. In addition, SiO2-Al2 O3-25 provided better support properties, allowing preferable NiMo dispersion. Hydrocracking assessment showed that CPO conversion was increased at higher Al mass, producing the highest bio-aviation and biogasoline fractions yield. Based on these results, SiO2-Al2 O3-x/NiMo successfully enhanced CPO conversion of unloaded SiO2-Al2 O3-x, as well as increased the yield of bio-aviation and biogasoline fractions. © 2024, Budapest University of Technology and Economics. All rights reserved.
Department of Chemistry, Faculty of Mathematics and Natural Science, Universitas Sriwijaya, Jl. Palembang-Prabumulih Km. 35., Sumatra Selatan, Indralaya, 30662, Indonesia; Chemistry Department, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia; Research Center for Chemistry, Indonesian Institute of Sciences, Building 452 Kawasan PUSPIPTEK, Banten, Serpong, Tangerang Selatan, 15314, Indonesia; Department of Chemistry, Faculty of Mathematics and Natural Science, Universitas Negeri Padang, Jl. Prof. Dr. Hamka 1, Padang, 25171, Indonesia
