Productions of sunflower oil biodiesel and used cooking oil through heterogeneous catalysts compared to conventional homogeneous catalysts

[摘要] This document compares homogeneous and heterogeneous catalysts used by production of biodiesel of sunflower oil and cooking oil used in frying. For this, NaOH was used as a catalyst homogeneous, and K2CO3and Na2CO3supported in gamma-alumina (K2CO3/γ Al2O3y Na2CO3/γ-Al2O3) were synthesized as heterogeneous catalysts, which were characterized by X-ray diffraction. The transesterification tests were carried out for the sunflower oil and used cooking oil, in a reflux system, to different molar relations methanol/oil, depending on the type of oil and characterization of the same. The reflux system is performed at a temperature of 55-60°C for one hour. Finally, biofuel was characterized and the yield of the reaction was calculated.

[发布机构] Universidad Manuela Beltrán, Bogotá D.C., Colombia^1;Universidad Pedagógica Nacional, Bogotá D.C., Colombia^2;Universidad Nacional de Colombia, Bogotá D.C., Colombia^3

[效力级别] 化学

[关键词] Cooking oil;Gamma alumina;Heterogeneous catalyst;Homogeneous catalyst;Reflux systems;Used cooking oil