Transesterification of triglyceride over Ni impregnated Zn/CaO nanocatalysts

A series of Ni loaded Zn/CaO mixed oxides were prepared by wet impregnation process and their catalytic activities were investigated for transesterification of triglyceride. The physico-chemical properties of the catalysts were characterized by powder XRD, SEM, TEM, FT-NMR and temperature programmed desorption (TPD) studies. The prepared catalyst was successfully employed for the transesterification of waste cottonseed oil (WCO) having 4.4 wt% of free fatty acid contents. The catalytic amount of 5 wt% Ni/Zn/CaO catalyst (with respect to WCO), shown higher conversion (similar to 98%) of biodiesel compared to other wt% of catalysts. The catalyst was recovered from the reaction mixture by simple filtration and reused for three consecutive runs. (C) 2019 Elsevier Ltd. All rights reserved.

Automated summary

The catalytic activities of Ni loaded Zn/CaO mixed oxides were studied for transesterification of triglycerides. The catalyst showed high conversion of biodiesel and could be reused for three consecutive runs. The physico-chemical properties of the catalyst were characterized by various techniques.