Converting Waste Cooking Oil to Biodiesel Catalyzed
by NaOH-Impregnated CaO Derived from Cockle Shell
(Anadara granosa)1
Nurhayatia, *, L. Saputraa, A. Awaluddina, and E. Kurniawanb
a Department of Chemistry, Faculty of Mathematics and Natural Sciences, Riau University, Pekanbaru, 28293 Indonesia
b Department of Chemistry Education, Faculty of Tarbiyah and Teachers Training, Kuantan Singigi Islamic University,
Teluk Kuantan, Riau, 29566 Indonesia
Correspondence to: * e-mail: nurhayati@lecturer.unri.ac.id
1Abbreviations and notation: WCO, waste cooking oil; CPO, crude palm oil; FFA, free fatty acid; FAME, fatty acid methyl ester; KO, karanja oil; JO, jatropha oil; SSA, specific surface area; XRD, X-ray diffraction; XRF, X-ray fluorescence; GC, gas chromatography.
Received 13 May, 2021
Abstract—Herein, we developed an efficient and easily separable Na/CaO catalyst derived from cockle shell (Anadara granosa) for biodiesel production from waste cooking oil. Impregnation with 3 wt % of NaOH could enhance the specific surface area and catalytic performance (>89% biodiesel yield). The effects of calcination temperature, reaction time, and stirring speed were also carefully studied. The quality of biodiesel obtained using this method mainly fulfills the requirements for biodiesel standard (ASTM D 6751).
Keywords: waste cooking oil (WCO), NaOH-impregnated CaO, Anadara granosa
DOI: 10.1134/S0023158421070028