Clean synthesis of biodiesel over solid acid catalysts of sulfonated mesopolymers  

作　　者：FANG Lin,XING Rong,WU HaiHong,LI XiaoHong,LIU YueMing & WU Peng Shanghai Key Laboratory of Green Chemistry and Chemical Processes Department of Chemistry,East China Normal University,Shanghai 200062,China 

出　　处：《Science China Chemistry》2010年第7期1481-1486,共6页中国科学（化学英文版）

基　　金：the National Natural Science Foundation of China (20925310 & 20873043);the Science and Technology Commission of Shanghai Municipality (09XD1401500 & 08JC1408700);973 Project (2006CB202508);863 Program (2007AA03Z342 & 2008AA030801);the Shanghai Leading Academic Discipline Project (B409);the Cheung Kong Scholars Program

摘　　要：FDU-15-SO3H,a solid acid material prepared from the sulfonation of FDU-15 mesoporous polymer,has been demonstrated to serve as an efficient catalyst in the esterification of palmitic acid with methanol as well as in the transesterification of fatty acid-edible oil mixture.FDU-15-SO3H achieved an acid conversion of 99.0% when the esterification was carried out at 343 K with a methanol/palmitic acid molar ratio of 6:1 and 5 wt% catalyst loading.It was capable of giving 99.0% yield of fatty acid methyl esters (FAME) when the transesterification of soybean oil was performed at 413 K and the methanol/oil weight ratio of 1:1.FDU-15-SO3H was further applied to the transesterification/esterification of the oil mixtures with a varying ratio of soybean oil to palmitic acid,which simulated the feedstock with a high content of free fatty acids.The yield of FAME reached 95% for the oil mixtures containing 30 wt% palmitic acid.This indicated the sulfonated mesopolymer was a potential catalyst for clean synthesis of fuel alternative of biodiesel from the waste oil without further purification.FDU-15-SO3H,a solid acid material prepared from the sulfonation of FDU-15 mesoporous polymer,has been demonstrated to serve as an efficient catalyst in the esterification of palmitic acid with methanol as well as in the transesterification of fatty acid-edible oil mixture.FDU-15-SO3H achieved an acid conversion of 99.0% when the esterification was carried out at 343 K with a methanol/palmitic acid molar ratio of 6:1 and 5 wt% catalyst loading.It was capable of giving 99.0% yield of fatty acid methyl esters (FAME) when the transesterification of soybean oil was performed at 413 K and the methanol/oil weight ratio of 1:1.FDU-15-SO3H was further applied to the transesterification/esterification of the oil mixtures with a varying ratio of soybean oil to palmitic acid,which simulated the feedstock with a high content of free fatty acids.The yield of FAME reached 95% for the oil mixtures containing 30 wt% palmitic acid.This indicated the sulfonated mesopolymer was a potential catalyst for clean synthesis of fuel alternative of biodiesel from the waste oil without further purification.

关 键 词：MESOPOROUS polymer SULFONATION ESTERIFICATION TRANSESTERIFICATION BIODIESEL 

分 类 号：TE667[石油与天然气工程—油气加工工程]