Fahrizal Nasution, Husni Husin, Mahidin Mahidin, Faisal Abnisa, Komala Pontas, Ahmadi Ahmadi
The purpose of this work was to investigate the effect of nickel-impregnated niobium oxide catalysts in the catalytic reforming of pyrolysis oils produced from low density polyethylene (LDPE) waste plastics. Wet impregnation was used to synthesize nickel-impregnated niobium oxide catalysts with varying amounts of Ni metal loading. SEM-EDS, XRD, and FT-IR were used to gain a better understanding of the catalyst characteristics such as crystallinity, surface topography, and functional groups. The LDPE pyrolysis oils were catalytically reformed in a fixed-tubular reactor with 2 mL/h flowrate of feed by using 0.5 g NiO/Nb2O5 catalysts at 450°C with different loading of nickel onto catalysts (2%, 4%, 6%, 8%, and 10%wt), and N2 (99.9%) as the carrier gas. The highest yield of the improving oils from LDPE was reached by 67.33%. The products of the catalytic reforming process in terms of the chemical compounds were investigated by using GC-MS analysis. The GC-MS analysis shows that the improved oils mostly comprise aliphatic (straight, branched-chain of paraffin and olefin) and aromatic compounds. The carbon number of improved oils is mostly in the C6-C26 range, with the high hydrocarbon content of the gasoline at 76.46% (C5-C12). The characterization of improved oils, including viscosity, density, and calorific value, was examined to confirm the purpose of catalyst function and that it was within the fuel standard. The results confirm that the NiO/Nb2O5 catalyst has good performance in the catalytic reforming process of pyrolysis oil derived from LDPE waste plastics. © 2024 American Institute of Physics Inc.. All rights reserved.
Doctoral School of Engineering Science, Universitas Syiah Kuala, Banda Aceh, 23111, Indonesia; Reaction Engineering and Catalytis Laboratory, Department of Chemical Engineering, Faculty of Engineering, Universitas Syiah Kuala, Banda Aceh, 23111, Indonesia; Department of Chemical and Materials Engineering, Faculty of Engineering, King Abdulazis Universtiy, Rabigh, 21911, Saudi Arabia; Department of Chemical Engineering, Universitas Syiah Kuala, Banda Aceh, 23111, Indonesia
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