Synthesis of nano size alumina doped by CuO and ZnO with microwave solution combustion method for esterification reaction

Catalysts have many applications in industrial process, recently. However, many synthesized catalysts didnot use in chemical engineering. In this work, we were studies on modifying of alumina with zinc and copper oxides andassessment of their activity in esterification of oleic acid to its methyl ester (biodiesel). The microwave solutioncombustion method is one of method for catalyst preparation which is very fast. The samples (pure and doped Al2O3 byCuO and ZnO) were characterized by x-ray diffraction and scanning electron microscopy. Then, the activity of catalystswere investigated by esterification method. The results showed that the alumina has insignificant activity for biodieselproduction. Moreover, alumina doped by zinc oxide as zinc aluminate has higher activity than copper aluminate due toits lower particle size and higher acidity, probably.

کلیدواژه ها:

Microwave ، Solution combustion ، Alumina ، Esterification