SYNTHESIS OF MIXED SUPPORT (CATALYST/ADSORBENT) OF HIGH TEMPERATURE CHARCOAL AND ALUMINA
Charcoal; alumina; sol-gel
The use of fossil fuels has been decreasing over the years and giving space to biofuels, to reduce the impact on the greenhouse effect, generated by combustion gases. Biodiesel proves to be advantageous since it is produced by renewable and clean energy sources, among them vegetable oils, mainly soy, cotton and sunflower, which, together with methanol or ethanol, react in a transesterification reaction. This reaction is catalyzed by different compounds, such as heterogeneous catalysts supported on charcoal, which in turn are cheap, porous and abundant. The main raw materials used in the production of coals are eucalyptus and elephant grass, both of which are widely available and have a low preparation cost. These coals can be produced by different processes, such as the “sol-gel” methodology, in which a colloidal solution is used that quickly precipitates forming a very porous gel. This work aims to produce a viable heterogeneous catalyst for industrial application in the biodiesel transesterification reaction, making the reaction faster and producing more biofuel