Promotional effect of transition metal doping on the properties of KF/CaO catalyst for biodiesel synthesis

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	Promotional effect of transition metal doping on the properties of KF/CaO catalyst for biodiesel synthesis
	Yang, Lingmei ; Lv, Pengmei ; Wang, Zhongming ; Yuan, Zhenhong ; Luo, Wen ; Li, Huiwen ; Yu, Luo ; Sun, Hongzhe
	2017
发表期刊	INTERNATIONAL JOURNAL OF GREEN ENERGY
卷号	14 页码:784-791
其他摘要	A series of heterogeneous KF/CaO catalysts modified with transition metals (lanthanum, cerium, and zirconium) were prepared via wet impregnation method and applied to the trsansesterification process of waste cooking oil (WCO) as feedstock with methanol to biodiesel production. The structure, performance of the solid catalysts was characterized by X-ray diffraction (XRD), temperature programmed desorption of CO2 (CO2-TPD), scanning electron microscopy (SEM), and energy-dispersive spectroscopy (EDS). The effect of methanol/oil molar ratio, (1)reaction time, reaction temperature, catalyst amount, and stability was investigated. The results showed that 10wt% of lanthanum, cerium, and zirconium improved the catalytic activity of KF/CaO catalyst. The maximum catalytic activity using the lanthanum doping of 10wt% on KF/CaO catalyst was reached 98.7% under the optimal reaction condition of methanol/oil molar ratio of 12:1, reaction for 1h at reaction temperature of 65 degrees C, and 4% (wt/wt oil) catalyst amount. In addition, the FAME yield of KF/CaO/La catalyst remained higher than 95% after 10 cycles. The promotional effect of lanthanum doping could be attributed to the enhancement of the basicity strength of KF/CaO catalyst and block the leach of Ca2+ in the transesterification reaction.
关键词	Biodiesel heterogeneous catalyst transesterification transition metal waste cooking oil
文献类型	期刊论文
条目标识符	http://ir.giec.ac.cn/handle/344007/16746
专题	中国科学院广州能源研究所
推荐引用方式 GB/T 7714	Yang, Lingmei,Lv, Pengmei,Wang, Zhongming,et al. Promotional effect of transition metal doping on the properties of KF/CaO catalyst for biodiesel synthesis[J]. INTERNATIONAL JOURNAL OF GREEN ENERGY,2017,14:784-791.
APA	Yang, Lingmei.,Lv, Pengmei.,Wang, Zhongming.,Yuan, Zhenhong.,Luo, Wen.,...&Sun, Hongzhe.(2017).Promotional effect of transition metal doping on the properties of KF/CaO catalyst for biodiesel synthesis.INTERNATIONAL JOURNAL OF GREEN ENERGY,14,784-791.
MLA	Yang, Lingmei,et al."Promotional effect of transition metal doping on the properties of KF/CaO catalyst for biodiesel synthesis".INTERNATIONAL JOURNAL OF GREEN ENERGY 14(2017):784-791.