Abstract
Jet-fuel range hydrocarbons such as 97.2% bi-cyclohexane, 94.1% di-cyclohexyl methane, and 95.6% trans-decalin have been produced selectively from biomass-derived cyclic ketones, namely, phenyl cyclohexanone (PCHO), benzyl cyclohexanone (BCHO), and α-tetralone (TLO), by vapor phase hydrodeoxygenation (VP-HDO). In this work, a mesoporous Ru-Ni2P bimetallic Al/KIT-6 catalyst was prepared hydrothermally with Si/Al = 10. Vapor phase hydrodeoxygenation over Ru-Ni2P/Al (10)-KIT-6 with hydrogen pressure of 50 mL/min, 300–450 °C of reaction temperature, and 2–10 h of time was carried out and attained the highest selectivity and conversion. Under optimal reaction circumstances (400 °C, 8 h, H2 = 50 mL/min), PCHO, BCHO, and TLO conversion over Ru (2.0)-Ni2P(4.0)/Al(10)-KIT-6 is 94.8, 96.2, and 92.7%, respectively. Ru particles on Ni2P promote C–O bond cleavage and complete ketone reduction, resulting in a synergistic interaction between Ru and Ni2P in VP-HDO catalysis. Jet-fuel hydrocarbon invention demonstrated the elimination of oxygen from BDK.
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