Highly Selective Hydrodeoxygenation Catalyst for Sustainable Aviation Fuel Production from Used Cooking Oil
2024; Elsevier BV; Volume: 442; Linguagem: Inglês
10.1016/j.cattod.2024.114895
ISSN1873-4308
AutoresArundhathi Racha, Lalit Kumar, Shivanand M. Pai, Chanchal Samanta, Bharat L. Newalkar, Chiranjeevi Thota,
Tópico(s)Catalysis and Oxidation Reactions
ResumoThe production of Sustainable Aviation Fuel (SAF) utilizing used cooking oil (UCO) as a renewable bio-waste resource holds immense potential for promoting sustainability in the aviation sector. In this study, SAF synthesis via hydrodeoxygenation of pretreated UCO over Ni-Mo/alumina-silica catalysts followed up hydroisomerization of deoxygenated oil has been investigated in a fixed-bed reactor. The effect of Al2O3/SiO2 ratio on the physico-chemical properties of Al2O3-SiO2 support and on the overall hydrodeoxygenation performance of the Ni-Mo catalyst supported on Al2O3-SiO2 has been investigated. NiMo catalyst supported on Al2O3-SiO2 in a 70:30 ratio achieved 86.69% UCO conversion during the hydrodeoxygenation step and exhibited 74.79% jet range hydrocarbon fuel selectivity under mild conditions (350°C, 1.1 h⁻¹ WHSV, 6 MPa, H2/oil (v/v): 400). The catalyst activity remained stable for >100 hours highlighting its good stability under the experimental conditions investigated. This work demonstrates the potential of tailor-made supported catalysts for highly selective single-step conversion of UCO into jet-range hydrocarbons, offering a significant step towards the production of sustainable aviation fuels.
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