Jet fuel range tricyclic alkanes were first selectively synthesized with methyl benzaldehyde and cyclohexanone which can be derived from lignocellulose.

In this work, jet fuel range high-density dicycloalkanes were manufactured from methyl benzaldehyde and acetone, two platform compounds which may be obtained from lignocellulose. Protonated titanate nanotube (PTNT), a cheap...

A high-density cyclic hydrocarbon mixture was first synthesized by a one-pot transfer hydrodeoxygenation of a polycarbonate.

Diesel and jet fuel range cycloalkanes were obtained in~84.8% overall carbon yield with cyclopentanone and furfural, which can be produced from hemicellulose. Firstly, 2,5-bis(furan-2-ylmethyl)-cyclopentanone was prepared by the aldol condensation/hydrogenation reaction of cyclopentanone and furfural under solid base and selective hydrogenation catalyst. Over the optimized catalyst (Pd/C-CaO), 98.5% carbon yield of 2,5-bis(furan-2-ylmethyl)-cyclopentanone was acquired at 423 K. Subsequently, the 2,5-bis(furan-2-ylmethyl)-cyclopentanone was further hydrodeoxygenated over the M/H-ZSM-5(Pd, Pt and Ru) catalyst. Overall, 86.1% carbon yield of diesel and jet fuel range cycloalkanes was gained over the Pd/H-ZSM-5 catalyst under solvent-free conditions. The cycloalkane mixture obtained in this work has a high density (0.82 g mL −1 ) and a low freezing point (241.7 K). Therefore, it can be mixed into diesel and jet fuel to increase their volumetric heat values or payloads.

The selective hydrodeoxygenation (HDO) of lignocellulose-derived ketones to olefins is a promising method for the upgrading of lignocellulosic biomass-derived molecules. Herein, zinc molybdate (ZnMoO4-E) with disordered layered stacking structure was...

High-density and low freezing point dicycloalkanes were synthesized by the aldol condensation of methyl isobutyl ketone with aromatic aldehydes followed by hydrodeoxygenation under solvent-free conditions.

In this work, jet fuel range high-density polycycloalkanes, dicyclohexylmethane and dodecahydrofluorene, were first synthesized by a two-step method with vanillin and cyclohexanone, two platform compounds that can be derived from...

Branched octahydro-indenes were first synthesized with methyl isobutyl ketone (MIBK) and methyl benzaldehyde, which can be obtained from lignocellulose. Initially, C 14 oxygenates were prepared by the aldol condensation reaction of MIBK with methyl benzaldehydes. K 2 CO 3 /Al 2 O 3 exhibited the highest activity among the studied solid base catalysts. On the basis of the characterizations, the outstanding activity of K 2 CO 3 /Al 2 O 3 was comprehended, because this material has a relatively higher surface area and a larger base site concentration. Subsequently, the aldol condensation products were converted to branched octahydro-indene by hydrodeoxygenation over a Pt/C catalyst. This method is also applicable for the manufacture of C 11 −C 13 polycycloalkanes with methyl benzaldehyde and other lignocellulosic ketones. According to our measurements, the polycycloalkanes obtained in this work have low freezing points (227.7∼240.0 K) and high densities (0.857∼0.944 g mL −1 ). Consequently, they may potentially be utilized to raise the volumetric heat values and/or the thermal stability of jet fuels.