Evaluation of diether used in transesterification

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	Evaluation of diether used in transesterification
	Zeng, Jianli 1,2; Wang, Xiaodong 1; Zhao, Bing 1; Xia, Yujie 1,2; Wang, Yuchun 1
刊名	ENERGY & FUELS
	2008-07-01
卷号	22 期号:4 页码:2707-2712
关键词	oil methyl-esters vegetable-oils sunflower oil single-phase soybean oil transmethylation kinetics
ISSN号	0887-0624
其他题名	Energy Fuels
中文摘要	Studies were carried out to evaluate the potentiality of diether used in transesterification and investigate the effects of diether type, catalyst concentration, molar ratio of methanol/oil, and temperature on biodiesel production. Experiment results showed that four selected diethers, including 1,2-dimethoxyethane, 2,2dimethoxypropane, diethoxymethane, and 1, 1 -diethoxyethane, converted a methanol/oil two-phase system into a diether/methanolloil one-phase system when they were added up to a critical volume. There were no significant differences among these four diethers in forming one-phase system with sunflower oil. The conversion rates using diethers as cosolvents were slightly higher than those using monoethers under the same reaction condition. The optimal catalyst (KOH) concentration of 6.90 g/L and methanol/oil molar ratio of 9:1 were determined when diethoxymethane was used to intensify the transesterification. The higher the reaction temperature (from 25-65 degrees C) was, the quicker the transesterification was. It took 7 min to get a 97.0% methyl ester concentration at 25 degrees C and only 2 min to reach 96.7% at 65 degrees C.
英文摘要	Studies were carried out to evaluate the potentiality of diether used in transesterification and investigate the effects of diether type, catalyst concentration, molar ratio of methanol/oil, and temperature on biodiesel production. Experiment results showed that four selected diethers, including 1,2-dimethoxyethane, 2,2dimethoxypropane, diethoxymethane, and 1, 1 -diethoxyethane, converted a methanol/oil two-phase system into a diether/methanolloil one-phase system when they were added up to a critical volume. There were no significant differences among these four diethers in forming one-phase system with sunflower oil. The conversion rates using diethers as cosolvents were slightly higher than those using monoethers under the same reaction condition. The optimal catalyst (KOH) concentration of 6.90 g/L and methanol/oil molar ratio of 9:1 were determined when diethoxymethane was used to intensify the transesterification. The higher the reaction temperature (from 25-65 degrees C) was, the quicker the transesterification was. It took 7 min to get a 97.0% methyl ester concentration at 25 degrees C and only 2 min to reach 96.7% at 65 degrees C.
WOS标题词	Science & Technology ; Technology
类目[WOS]	Energy & Fuels ; Engineering, Chemical
研究领域[WOS]	Energy & Fuels ; Engineering
关键词[WOS]	OIL METHYL-ESTERS ; VEGETABLE-OILS ; SUNFLOWER OIL ; SINGLE-PHASE ; SOYBEAN OIL ; TRANSMETHYLATION ; KINETICS
收录类别	SCI
原文出处	://WOS:000257793200077
语种	英语
WOS记录号	WOS:000257793200077
公开日期	2013-10-08
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.ipe.ac.cn/handle/122111/2902]
专题	过程工程研究所_研究所（批量导入）
作者单位	1.Chinese Acad Sci, Inst Proc Engn, Natl Key Lab Biochem Engn, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Zeng, Jianli,Wang, Xiaodong,Zhao, Bing,et al. Evaluation of diether used in transesterification[J]. ENERGY & FUELS,2008,22(4):2707-2712.
APA	Zeng, Jianli,Wang, Xiaodong,Zhao, Bing,Xia, Yujie,&Wang, Yuchun.(2008).Evaluation of diether used in transesterification.ENERGY & FUELS,22(4),2707-2712.
MLA	Zeng, Jianli,et al."Evaluation of diether used in transesterification".ENERGY & FUELS 22.4(2008):2707-2712.