doi:10.3303/CET24109023engLete, A.García, L.Ruiz, JoaquínArauzo, JesúsCatalytic conversion of 1,2-propanediol to 2-propanone: an exploratory studyART-2024-139819Climate change underscores the urgency of exploring novel pathways for the decarbonization of the transportation sector. Within the aviation sector, biofuel appears to be the most viable short-term solution. Recently, the focus has centered on the aldol condensation of biomass-derived furans with ketones as 2-propanone (acetone) or 2-hydroxy-2-propanone (acetol), offering an efficient method to produce intermediates suitable for aviation fuels. However, 2-propanone is currently produced from cumene, a petroleum-derived source. This study proposes 1,2-propanediol (1,2-PDO), a sustainable product obtained by the hydrogenolysis of glycerol, a byproduct of the biodiesel industry, as a renewable feedstock for the generation of 2-propanone. For that purpose, the coprecipitation method with sodium hydroxide was employed to synthesize three copper, zinc, and aluminum-based catalysts. The catalysts were characterized through ICP-OES, N2 adsorption-desorption, XRD, and H2-TPR. The dehydration of 1,2-PDO to 2-propanone was investigated in a continuous system at 227 ºC, using a 10 wt% aqueous solution of 1,2-PDO at atmospheric pressure with a W/m ratio of 10 gCatalyst min g1,2-PDO-1. The catalyst with the lower zinc content achieved the highest carbon selectivity to 2-propanone at 22.1% and generated 1845 µmol2-propanone/mol1,2-PDO. This study revealed that lower zinc content could enhance 1,2-PDO dehydration to 2-propanone, preventing the subsequent hydrogenation of 2-propanone to 2-propanol. Additional optimization is required to attain higher yields.2024http://zaguan.unizar.es/record/14499510.3303/CET24109023http://zaguan.unizar.es/record/144995oai:zaguan.unizar.es:144995info:eu-repo/grantAgreement/ES/DGA-FEDER/T22-23Rinfo:eu-repo/grantAgreement/ES/MCINN/PID2020-114985RB-I00Chemical Engineering transactions 109 (2024), 133-138by-nchttps://creativecommons.org/licenses/by-nc/4.0/deed.esinfo:eu-repo/semantics/openAccess