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Free fatty acids esterification for biodiesel production using self-synthesized macroporous cation exchange resin as solid acid catalyst
Fu, Junying1,2; Chen, Liangguang1,2; Lv, Pengmei1; Yang, Lingmei1; Yuan, Zhenhong1
2015-08-15
发表期刊FUEL
卷号154页码:1-8
摘要Using high free fatty acids (FFAs) contents oil as the raw material for biodiesel production can reduce the production cost and make fully use of the bio-oil resources. Macroporous cation exchange resins contain numerous acid sites to catalyze heterogeneous esterification reactions to reduce the FFAs contents and prevent the saponification reaction. This study focuses on the synthesis and performance tests of the macroporous resin catalysts and its water deactivation mechanism. Self-synthesized macroporous cation exchange resins have a surface area of 185 m(2) g(-1) with an average pore diameter of 9.7 nm and the ion exchange capacity is 3.37 +/- 0.11 mmol g(-1). Owing to their pore structure, macroporous resin performs better than gel-type resin in low methanol concentration or high FFAs contents, but they show physical instability in reusability tests. The FFAs conversion reaches 97.8% (substrate oil with acid value of 64.9 mg KOH/g) under 100 degrees C and a methanol/FFAs molar ratio of 15:1 with 10 wt% catalyst loading. Water that originally exists in oil or that is produced in the reaction deactivates differently on the activity of the resin, but this deactivation can be decreased by increasing the reaction temperature. In this study, a linear relationship between original water content and esterified FFAs was identified and differences in deactivation models were investigated. (C) 2015 Elsevier Ltd. All rights reserved.
文章类型Article
关键词Biodiesel Cation Exchange Resin Esterification Free Fatty Acid Water Deactivation Mechanism
WOS标题词Science & Technology ; Technology
DOI10.1016/j.fuel.2015.03.048
研究领域[WOS]Energy & Fuels ; Engineering
关键词[WOS]WASTE COOKING OIL ; OLEIC-ACID ; METHANOL ; KINETICS ; FUEL
收录类别SCI
语种英语
WOS类目Energy & Fuels ; Engineering, Chemical
WOS记录号WOS:000353893200001
引用统计
文献类型期刊论文
条目标识符http://ir.giec.ac.cn/handle/344007/9118
专题中国科学院广州能源研究所
作者单位1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714
Fu, Junying,Chen, Liangguang,Lv, Pengmei,et al. Free fatty acids esterification for biodiesel production using self-synthesized macroporous cation exchange resin as solid acid catalyst[J]. FUEL,2015,154:1-8.
APA Fu, Junying,Chen, Liangguang,Lv, Pengmei,Yang, Lingmei,&Yuan, Zhenhong.(2015).Free fatty acids esterification for biodiesel production using self-synthesized macroporous cation exchange resin as solid acid catalyst.FUEL,154,1-8.
MLA Fu, Junying,et al."Free fatty acids esterification for biodiesel production using self-synthesized macroporous cation exchange resin as solid acid catalyst".FUEL 154(2015):1-8.
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