Abstract
This paper presents the results of a biofuel production process conducted using a cutting-edge, highly selective hydroisomerization catalyst. Rapeseed oil was used as a basic raw material for the synthesis of sustainable aviation fuel. The objective was to verify the catalysts hydroisomerization activity by comparison the effectiveness of obtained biofuel using a miniature jet engine and its compliance with current standards. The developed two-stage process by Łukasiewicz - ICSO involves the conversion of rapeseed oil into a C15–C18 hydrocarbon fraction through hydrodeoxygenation and subsequent hydroisomerization using the Pt/(SAPO-11 + Al2O3) catalyst. The overall average final yield of the aviation fuel fraction (C9–C18) after 500 h of testing was (60 ± 3)% based on the initial rapeseed oil used.In comparison to 100% petrochemical JET A-1 fraction, a BIO50 blend (mixture of biocomponent and JET A-1) is characterized by a more preferable crystallization temperature (−64 °C) and a 50% lower content of aromatic compounds fulfilling all the requirements of ASTM D-7566 standard. Additionally, tests conducted on a miniature jet engine have shown, that the BIO50 mixture has a higher calorific value compared to standard petrochemical fuel, what allows to reduce the overall fuel consumption and slightly lower CO2 and NOx emissions.
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