Catalytic transesterification to biodiesel at room temperature over several solid bases

CORC > 西双版纳热带植物园 > 中国科学院西双版纳热带植物园 > 生物能源研究组

	Catalytic transesterification to biodiesel at room temperature over several solid bases
	Yang, Xing-Xia; Wang, Yi-Tong; Yang, Ya-Ting; Feng, Er-Zhong; Luo, Jia; Zhang, Fan; Yang, Wen-Jing; Bao, Gui-Rong
刊名	ENERGY CONVERSION AND MANAGEMENT
	2018
卷号	164 期号:x 页码:112-121
关键词	Room Temperature Transesterification Activated Silicate Biodiesel Reaction Kinetics
ISSN号	0196-8904
英文摘要	The transesterification activity of several solid base catalysts in biodiesel production was systematically studied and evaluated at room temperature. Commercialized calcined silicates showed stronger transesterification ability than other commonly-used oxides, and provided considerable biodiesel yields. Biodiesel yield of > 96% was obtained for Na2SiO3 catalyst (calcined at 400 degrees C) at 28 degrees C within 12 h with methanol/oil molar ratio of 12/1 and catalyst dosage of 5 wt%, and for CaSiO3 catalyst (calcined at 550 degrees C) at 28 degrees C within 24 h with methanol/oil molar ratio of 27/1 and catalyst dosage of 23 wt%. The high activity of Na2SiO3 came from low activation energy of 104.6 kJ/mol and considerable higher pre-exponential factor of 3.73 x 10(15) min(-1), which produced high turnover frequency of 0.234 min(-1) at 28 degrees C. The introduction of CA-O-Si structure in CaSiO3 resulted in high surface basicity of 0.70 mmol/g and high pre-exponential factor of 3.79 x 10(19) min(-1) but high activation energy of 136.4 kJ/mol. The loss of catalyst activity was mainly due to the variation of surface silicate structure during transesterification.
URL标识	查看原文
语种	英语
公开日期	2018-06-07
内容类型	期刊论文
源URL	[http://ir.xtbg.org.cn/handle/353005/10866]
专题	西双版纳热带植物园_生物能源研究组
推荐引用方式 GB/T 7714	Yang, Xing-Xia,Wang, Yi-Tong,Yang, Ya-Ting,et al. Catalytic transesterification to biodiesel at room temperature over several solid bases[J]. ENERGY CONVERSION AND MANAGEMENT,2018,164(x):112-121.
APA	Yang, Xing-Xia.,Wang, Yi-Tong.,Yang, Ya-Ting.,Feng, Er-Zhong.,Luo, Jia.,...&Bao, Gui-Rong.(2018).Catalytic transesterification to biodiesel at room temperature over several solid bases.ENERGY CONVERSION AND MANAGEMENT,164(x),112-121.
MLA	Yang, Xing-Xia,et al."Catalytic transesterification to biodiesel at room temperature over several solid bases".ENERGY CONVERSION AND MANAGEMENT 164.x(2018):112-121.