Rapid conversion of fat, oil and grease (FOG) into biodiesel without pre-treatment of FOG

Authors
Lee, JechanJung, Jong-MinPark, ChanhyukJeon, Byong-HunWang, Chi-HwaLee, Sang-RyongKwon, Eilhann E.
Issue Date
2017-12-01
Publisher
ELSEVIER SCI LTD
Citation
JOURNAL OF CLEANER PRODUCTION, v.168, pp.1211 - 1216
Abstract
In this study, the conversion of fat, oil and grease (FOG) into fatty acid methyl esters (FAMEs) without pre-treatment of FOG is investigated. A thermally induced process to accomplish simultaneous esterification of free fatty acids (FFAs) and transesterification of lipids is introduced. Despite high contents of impurities in FOG (similar to 14 wt%), the maximum achievable yield of FAMEs on feedstock mass basis was >86% for 10 s reaction time without removal of impurities prior to the reaction while conventional acid catalyzed reaction only produced <27.7% FAMEs from FOG. This means that the introduced technique can be effective for the conversion of low-quality raw material (e.g., FOG) into biodiesel. This study would suggest the potential not only for developing a sustainable integrated treatment process of FOG requiring no separation of lipids and FFAs in wastewater treatment facilities but also for using FOG as a renewable energy resource. (C) 2017 Elsevier Ltd. All rights reserved.
Keywords
WASTE COOKING OIL; NONCATALYTIC TRANSESTERIFICATION; DIMETHYL CARBONATE; DEPOSIT FORMATION; BROWN GREASE; SEED OIL; EXTRACTION; OPTIMIZATION; TECHNOLOGIES; FEEDSTOCKS; WASTE COOKING OIL; NONCATALYTIC TRANSESTERIFICATION; DIMETHYL CARBONATE; DEPOSIT FORMATION; BROWN GREASE; SEED OIL; EXTRACTION; OPTIMIZATION; TECHNOLOGIES; FEEDSTOCKS; Fat, oil and grease (FOG); Waste management; Biodiesel; Waste-to-energy; Simultaneous esterification/transesterification
ISSN
0959-6526
URI
https://pubs.kist.re.kr/handle/201004/121942
DOI
10.1016/j.jclepro.2017.09.096
Appears in Collections:
KIST Article > 2017
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