Rapid conversion of fat, oil and grease (FOG) into biodiesel without pre-treatment of FOG
- Authors
- Lee, Jechan; Jung, Jong-Min; Park, Chanhyuk; Jeon, Byong Hun; Wang, Chi-Hwa; Lee, Sang-Ryong; Kwon, Eilhann E.
- Issue Date
- Dec-2017
- Publisher
- ELSEVIER SCI LTD
- Keywords
- Fat, oil and grease (FOG); Waste management; Biodiesel; Waste-to-energy; Simultaneous esterification/transesterification
- Citation
- JOURNAL OF CLEANER PRODUCTION, v.168, pp.1211 - 1216
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF CLEANER PRODUCTION
- Volume
- 168
- Start Page
- 1211
- End Page
- 1216
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/151064
- DOI
- 10.1016/j.jclepro.2017.09.096
- ISSN
- 0959-6526
- 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.
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