doi:10.1016/j.cej.2020.124746engRamírez, AdriánHueso, José LuisMallada, ReyesSantamaría, JesúsMicrowave-activated structured reactors to maximize propylene selectivity in the oxidative dehydrogenation of propaneART-2020-116719Microwave (MW) heating has been applied to increase the selectivity to propylene in the oxidative dehydrogenation (ODH) of propane. The preferential heating of the solid monolith (made of SiC, a good microwave susceptor), allows working with a lower gas phase temperature, reducing the formation of undesired by-products in the gas phase via homogeneous reactions. Conversion levels of ~ 21% and selectivity to propylene up to 70% have been achieved with MW-heated straight channel monolithic reactors coated with a VMgO catalyst. These competitive values contrast with the more limited performance delivered by the same catalytic system when it is subjected to conventional heating in a fixed-bed reactor configuration, thereby corroborating the advantage of working under a significant gas–solid temperature gap to minimize the extent of homogeneous reactions.2020http://zaguan.unizar.es/record/9980710.1016/j.cej.2020.124746http://zaguan.unizar.es/record/99807oai:zaguan.unizar.es:99807info:eu-repo/grantAgreement/EUR/ERC/HECTOR-267626CHEMICAL ENGINEERING JOURNAL 393 (2020), 124746by-nc-ndhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccess