paper High tension cyclic hydrocarbons synthesized from biomass-derived platform molecules for aviation fuels in two steps

卷:8

Article

关键词: CATALYTIC CONVERSION;    RANGE CYCLOALKANES;    LIQUID ALKANES;    CHEMICALS;    HYDROGENOLYSIS;    HEMICELLULOSE;    ACID;    OIL;    JET;    HYDRODEOXYGENATION;   

DOI  :  10.1016/j.gee.2021.04.012

来源: SCIE

【 摘 要 】

Synthesizing ring structure aviation fuels from biomass-derived platform molecules is challenging, especially for bridged ring structure aviation fuels which are typically achieved from fossil-derived chemicals. Herein, we report the synthesis of a series of ring structure biofuels in two steps by a combination of a solvent-free Michael-cyclization reaction and a hydrodeoxygenation (HDO) reaction from lignocellulose-derived 5,5-dimethyl-1,3-cyclohexanedione. These biofuels are obtained with high overall yields up to 90%, which exhibit high densities of 0.81 g cm -3-0.88 g cm -3 and high volumetric neat heat of combustion (VNHOC) values of 36.0 MJ L-1-38.6 MJ L-1. More importantly, bridged-ring structure hydrocarbons can also be achieved in two steps by a combination of a Robinson annulation reaction and an HDO reaction to afford the final products at high overall yields up to 90%. The bridged-ring structure products have comparable high densities and high VNHOC values to the best artificial fuel JP-10 (0.94 g cm -3 and 39.6 MJ L-1). The results demonstrate a promising way for the synthesis of high-density aviation fuels with different fuel properties at high yields.(c) 2021 Institute of Process Engineering, Chinese Academy of Sciences. Publishing services by Elsevier B.V. on behalf of KeAi Communi-cations Co., Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).