Use of Sulfuric Acid-Impregnated Biochar Catalyst in Making of Biodiesel From Waste Cooking Oil Via Leaching Method

The biodiesel synthesis of waste cooking oil (WCO) over a impregnated biochar catalyst was systematically studied. This research aimed to prepare Biochar-based material that comes from coconut coir, activate it, and apply it as a catalyst to the esterification reaction of high-FFA waste cooking oil....

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Bibliographic Details
Published in:	Bulletin of chemical reaction engineering & catalysis Vol. 19; no. 1; pp. 160 - 170
Main Authors:	Sofyan, Muhammad Ihsan, Mailani, Putri Julpa, Setyawati, Avi Waras, Sulistia, Susi, Suciati, Fuzi, Hauli, Latifah, Putri, Reza Audina, Ndruru, Sun Theo C. L., Mawarni, Rista Siti, Meliana, Yenny, Nurhayati, Nurhayati, Joelianingsih, Joelianingsih
Format:	Journal Article
Language:	English
Published:	Semarang Department of Chemical Engineering, Diponegoro University 01-04-2024 Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)
Subjects:	biochar Biodiesel fuels Catalysts Cooking Esterification high-ffa wasted cooking oil, biodiesel synthesis Iodine Leaching solid-acid catalyst Sulfuric acid
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Summary:	The biodiesel synthesis of waste cooking oil (WCO) over a impregnated biochar catalyst was systematically studied. This research aimed to prepare Biochar-based material that comes from coconut coir, activate it, and apply it as a catalyst to the esterification reaction of high-FFA waste cooking oil. Activation of the catalyst was done by impregnation H2SO4 solution in Biochar. The obtained catalyst was characterized by FTIR, XRF, XRD, surface area analyzer, and SEM-EDS. The esterification process was conducted by varying the catalyst weight (5, 7, and 10 wt%) and the reaction temperature (55 and 60 °C). The obtained liquid yields were characterized by GC-MS. The study found that the esterification process worked best with 10 wt% catalysts, a 1:76 mole ratio of oil to alcohol, and a reaction temperature of 60 °C. The waste cooking oil was successfully converted into biodiesel, reaching 84.50% of yield and 77.30% of purity (methyl ester content). Meanwhile, testing using national biodiesel standards with parameter limits of density, viscosity, iodine number, and acid number shows results that meet the requirements. Copyright © 2024 by Authors, Published by BCREC Publishing Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).
ISSN:	1978-2993 1978-2993
DOI:	10.9767/bcrec.20113