@phdthesis{repo4232,
            year = {2022},
           title = {TURNITIN\_Utilization of Breed Chicken Eggshells for Biodiesel Preparation from Waste CookingOil},
          school = {Poltekkes Tanjungkarang},
           month = {April},
          author = {Djayasinga, Rodhiansyah and setiawan, Andi and Purnomo, Agus and Amien, Ahmad Zakaria},
             url = {http://repository.poltekkes-tjk.ac.id/id/eprint/4232/},
        abstract = {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{$\pm$}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}
}