TURNITIN_Utilization of Breed Chicken Eggshells for Biodiesel Preparation from Waste CookingOil

Chicken eggshell waste is a promising source of CaO which can be converted intoheterogeneous catalyst materials.The purpose of this study was to utilize CaO heterogeneous catalyst derived from breed chicken eggshell toproducebiodieselfromwastecookingoilthroughthetransesterification process.A totalof4gofcatalystmaterial wasmixedwith200gofwastecookingoiland60gofmethanol,and then the mixture was stirredataspeedof700rpmfor6hat60±40C.Theproduced biodieselwasanalyzedusingGC-MStoelucidate thevariousmethylestercompounds.Theproduced biodieselwasfoundtohaveadensityof855kg/m3, viscosity of 3.74 mm2/s (cSt), and flash point of 135 0C. Based on these results, it can beconcluded that breed chicken eggshells are potential sources for the preparation of CaO catalyst material to producebiodieselfromwastecookingoil.Thisfindingisveryusefulforfurtheropti-mizationofmasscatalystsheterogeneousCaOfrombreed chicken eggshellsincludingthecommercial productionofbiodiesel.Keywordsbiodiesel,CaOheterogeneouscatalyst,transesterification,wastecookingoil, breed chicken eggshell