The present invention belongs to the technical field of
aviation fuel preparation, and specifically relates to a method for synthesizing thermally stable
aviation kerosene from 2,5 - hexanedione. The method comprises the following steps: 1) Using 2,5 - hexanedione as a
raw material and an alkali solution as a catalyst, an
unsaturated ketone compound with twelve carbon atoms is obtained through an alkali - catalyzed
aldol condensation reaction; 2) The
unsaturated ketone compound obtained in step 1) undergoes a
hydrodeoxygenation reaction under the action of a ternary
mixed metal oxide catalyst to obtain a saturated
cycloalkane liquid fuel with twelve carbon atoms containing
alkyl decalin. The method of the present invention simplifies the current
route for preparing
alkyl decalin from
biomass, and the intermediate products and the final product do not need to undergo a purification /
distillation process; significantly reduces the production cost, the raw materials are cheap and easily available, the
reaction conditions are mild, and it is suitable for large - scale industrial production.