Lee, Jechan Jung, Jong-Min Park, Chanhyuk Jeon, Byong-Hun Wang, Chi-Hwa Lee, Sang-Ryong Kwon, Eilhann E. 2024-01-20T00:01:04Z 2024-01-20T00:01:04Z 2021-09-03 2017-12-01 0959-6526 https://pubs.kist.re.kr/handle/201004/121942 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. English ELSEVIER SCI LTD WASTE COOKING OIL NONCATALYTIC TRANSESTERIFICATION DIMETHYL CARBONATE DEPOSIT FORMATION BROWN GREASE SEED OIL EXTRACTION OPTIMIZATION TECHNOLOGIES FEEDSTOCKS Rapid conversion of fat, oil and grease (FOG) into biodiesel without pre-treatment of FOG Article 10.1016/j.jclepro.2017.09.096 1 JOURNAL OF CLEANER PRODUCTION, v.168, pp.1211 - 1216 JOURNAL OF CLEANER PRODUCTION 168 1211 1216 scie scopus 000414817700112 2-s2.0-85030673723 Green & Sustainable Science & Technology Engineering, Environmental Environmental Sciences Science & Technology - Other Topics Engineering Environmental Sciences & Ecology Article 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