RT Journal Article T1 Semi-continuous mechanochemical process for biodiesel production under heterogeneous catalysis using calcium diglyceroxide A1 Malpartida-García, Irene A1 Maireles-Torres, Pedro Jesús A1 Vereda-Alonso, Carlos A1 Rodríguez-Maroto, José Miguel A1 Halloumi, Samy A1 Lair, Valentin A1 Thiel, Julien A1 Lacoste, François K1 Energía de biomasa K1 Catálisis heterogénea K1 Glicerina AB This work is aimed at the development of a semi-continuous mechanochemical process for biodiesel production and the subsequent valorization of glycerol, its by-product, via its conversion into calcium diglyceroxide using the same mechanochemical reactor. This basic solid catalyzes the methanolysis of vegetable oils. The implementation of a semi-continuous process allows both the preparation of the solid catalyst and the methanolysis process, overcoming the miscibility problems of methanol and oil. Thus, a biodiesel yield higher than 90% is reached using a methanol:oil molar ratio close to stoichiometric value and 1.5 wt.% catalyst, after passing through the reactor with a flow rate between 4 to 45 L/h. This new process for biodiesel production can easily be scaled up and applied to the conversion of used cooking oils, without any significant yield decrease. A cost study was also performed, demonstrating that this is more economical than the conventional batch stirring-based process. PB Elsevier Ltd. YR 2020 FD 2020-05-26 LK https://hdl.handle.net/10630/28518 UL https://hdl.handle.net/10630/28518 LA eng NO Malpartida, I., Maireles-Torres, P., Vereda, C., Rodríguez-Maroto, J. M., Halloumi, S., Lair, V., Thiel, J., & Lacoste, F. (2020). Semi-continuous mechanochemical process for biodiesel production under heterogeneous catalysis using calcium diglyceroxide. Renewable Energy, 159, 117–126. NO Deasyl: CONTRATO 806/41.5524_08.06.00.35.80 DS RIUMA. Repositorio Institucional de la Universidad de Málaga RD 20 ene 2026