Use of carbonized corn cob biomass to reduce acidity of residual frying oil

The objective of this work was to evaluate the ability CCC as an adsorbent material for acidity removal RFO, aiming at application oil in biodiesel production. For that, a RCCD used FFA by applying and CAC comparative purposes. In assays effect Temperature, Agitation Mass factors were assessed over oil. Under best conditions from RCCD, evaluation adsorption kinetics performed, wherein it observed equilibrium reached within 4 h, CCC. Also, influence dosage performed. It verified that g sufficient allow system reach maximum removal. Overall, presented results approximately twice high than those obtained CAC, mainly due pore size distribution which led “molecular sieving effect” adsorbent. allowed major diffusion molecules inside its narrow-distributed pores, whereas with wider (up 260 Å) resulted larger competition active sites porous structure. adsorbents’ characterization also evidenced higher content oxygenated groups surface acted potential resulting enhanced adsorbent-adsorbate affinity. Lastly, wastes generated experiments, evaluated their calorific power value 31,933 J g-1, suggesting could be further energetic purposes, such solid fuel boilers furnaces generate thermal energy. Based on these results, stands out promising RFO