Abstract
Heterogeneous CaFe{sub 2}O{sub 4}–Ca{sub 2}Fe{sub 2}O{sub 5}-based catalyst with weak magnetism was prepared by co-precipitation and calcination. It was characterized by various techniques including X-ray diffraction, X-ray photoelectron spectroscopy and temperature programmed desorption method. Its active components were identified as mainly Ca–Fe composite oxides such as CaFe{sub 2}O{sub 4} for transesterification. The magnetism was further strengthened by reducing its component of Fe{sub 2}O{sub 3} to Fe{sub 3}O{sub 4}–Fe under H{sub 2} atmosphere for better magnetic separation. Both catalysts were used for the catalytic transesterification of soybean and Jatropha oils to biodiesel. The highest biodiesel yields for soybean oil of 85.4% and 83.5% were obtained over the weak and strong magnetic catalysts, respectively under the optimized conditions (373 K, 30 min, 15/1 methanol/oil molar ratio and 4 wt% catalyst). The catalysts could be recycled three times. Biodiesel production from pretreated Jatropha oil was tested with the magnetic CaFe{sub 2}O{sub 4}–Ca{sub 2}Fe{sub 2}O{sub 5}–Fe{sub 3}O{sub 4}–Fe catalyst, and 78.2% biodiesel yield was obtained. The magnetic CaFe{sub 2}O{sub 4}–Ca{sub 2}Fe{sub 2}O{sub 5}-based catalyst shows a potential application for the green production of biodiesel. - Highlights: • Magnetic catalyst was prepared by co-precipitation, calcination and reduction. • The catalyst was composed of CaFe{sub 2}O{sub 4}–Ca{sub 2}Fe{sub 2}O{sub
More>>
Xue, Bao-jin;
[1]
University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing 100049 (China)];
Luo, Jia;
[1]
Zhang, Fan;
[1]
University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing 100049 (China)];
Fang, Zhen
[1]
- Chinese Academy of Sciences, Biomass Group, Key Laboratory of Tropical Plant Resource and Sustainable Use, Xishuangbanna Tropical Botanical Garden, 88 Xuefulu, Kunming, Yunnan Province 650223 (China)
Citation Formats
Xue, Bao-jin, University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing 100049 (China)], Luo, Jia, Zhang, Fan, University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing 100049 (China)], and Fang, Zhen.
Biodiesel production from soybean and Jatropha oils by magnetic CaFe{sub 2}O{sub 4}–Ca{sub 2}Fe{sub 2}O{sub 5}-based catalyst.
United Kingdom: N. p.,
2014.
Web.
doi:10.1016/J.ENERGY.2014.02.082.
Xue, Bao-jin, University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing 100049 (China)], Luo, Jia, Zhang, Fan, University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing 100049 (China)], & Fang, Zhen.
Biodiesel production from soybean and Jatropha oils by magnetic CaFe{sub 2}O{sub 4}–Ca{sub 2}Fe{sub 2}O{sub 5}-based catalyst.
United Kingdom.
https://doi.org/10.1016/J.ENERGY.2014.02.082
Xue, Bao-jin, University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing 100049 (China)], Luo, Jia, Zhang, Fan, University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing 100049 (China)], and Fang, Zhen.
2014.
"Biodiesel production from soybean and Jatropha oils by magnetic CaFe{sub 2}O{sub 4}–Ca{sub 2}Fe{sub 2}O{sub 5}-based catalyst."
United Kingdom.
https://doi.org/10.1016/J.ENERGY.2014.02.082.
@misc{etde_22316188,
title = {Biodiesel production from soybean and Jatropha oils by magnetic CaFe{sub 2}O{sub 4}–Ca{sub 2}Fe{sub 2}O{sub 5}-based catalyst}
author = {Xue, Bao-jin, University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing 100049 (China)], Luo, Jia, Zhang, Fan, University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing 100049 (China)], and Fang, Zhen}
abstractNote = {Heterogeneous CaFe{sub 2}O{sub 4}–Ca{sub 2}Fe{sub 2}O{sub 5}-based catalyst with weak magnetism was prepared by co-precipitation and calcination. It was characterized by various techniques including X-ray diffraction, X-ray photoelectron spectroscopy and temperature programmed desorption method. Its active components were identified as mainly Ca–Fe composite oxides such as CaFe{sub 2}O{sub 4} for transesterification. The magnetism was further strengthened by reducing its component of Fe{sub 2}O{sub 3} to Fe{sub 3}O{sub 4}–Fe under H{sub 2} atmosphere for better magnetic separation. Both catalysts were used for the catalytic transesterification of soybean and Jatropha oils to biodiesel. The highest biodiesel yields for soybean oil of 85.4% and 83.5% were obtained over the weak and strong magnetic catalysts, respectively under the optimized conditions (373 K, 30 min, 15/1 methanol/oil molar ratio and 4 wt% catalyst). The catalysts could be recycled three times. Biodiesel production from pretreated Jatropha oil was tested with the magnetic CaFe{sub 2}O{sub 4}–Ca{sub 2}Fe{sub 2}O{sub 5}–Fe{sub 3}O{sub 4}–Fe catalyst, and 78.2% biodiesel yield was obtained. The magnetic CaFe{sub 2}O{sub 4}–Ca{sub 2}Fe{sub 2}O{sub 5}-based catalyst shows a potential application for the green production of biodiesel. - Highlights: • Magnetic catalyst was prepared by co-precipitation, calcination and reduction. • The catalyst was composed of CaFe{sub 2}O{sub 4}–Ca{sub 2}Fe{sub 2}O{sub 5}–Fe{sub 3}O{sub 4}–Fe. • Biodiesel yields of 83.5% and 78.2% were achieved for soybean and Jatropha oils. • The catalyst was easily separated by a magnet and used for three cycles.}
doi = {10.1016/J.ENERGY.2014.02.082}
journal = []
issue = {Complete}
volume = {68}
journal type = {AC}
place = {United Kingdom}
year = {2014}
month = {Apr}
}
title = {Biodiesel production from soybean and Jatropha oils by magnetic CaFe{sub 2}O{sub 4}–Ca{sub 2}Fe{sub 2}O{sub 5}-based catalyst}
author = {Xue, Bao-jin, University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing 100049 (China)], Luo, Jia, Zhang, Fan, University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing 100049 (China)], and Fang, Zhen}
abstractNote = {Heterogeneous CaFe{sub 2}O{sub 4}–Ca{sub 2}Fe{sub 2}O{sub 5}-based catalyst with weak magnetism was prepared by co-precipitation and calcination. It was characterized by various techniques including X-ray diffraction, X-ray photoelectron spectroscopy and temperature programmed desorption method. Its active components were identified as mainly Ca–Fe composite oxides such as CaFe{sub 2}O{sub 4} for transesterification. The magnetism was further strengthened by reducing its component of Fe{sub 2}O{sub 3} to Fe{sub 3}O{sub 4}–Fe under H{sub 2} atmosphere for better magnetic separation. Both catalysts were used for the catalytic transesterification of soybean and Jatropha oils to biodiesel. The highest biodiesel yields for soybean oil of 85.4% and 83.5% were obtained over the weak and strong magnetic catalysts, respectively under the optimized conditions (373 K, 30 min, 15/1 methanol/oil molar ratio and 4 wt% catalyst). The catalysts could be recycled three times. Biodiesel production from pretreated Jatropha oil was tested with the magnetic CaFe{sub 2}O{sub 4}–Ca{sub 2}Fe{sub 2}O{sub 5}–Fe{sub 3}O{sub 4}–Fe catalyst, and 78.2% biodiesel yield was obtained. The magnetic CaFe{sub 2}O{sub 4}–Ca{sub 2}Fe{sub 2}O{sub 5}-based catalyst shows a potential application for the green production of biodiesel. - Highlights: • Magnetic catalyst was prepared by co-precipitation, calcination and reduction. • The catalyst was composed of CaFe{sub 2}O{sub 4}–Ca{sub 2}Fe{sub 2}O{sub 5}–Fe{sub 3}O{sub 4}–Fe. • Biodiesel yields of 83.5% and 78.2% were achieved for soybean and Jatropha oils. • The catalyst was easily separated by a magnet and used for three cycles.}
doi = {10.1016/J.ENERGY.2014.02.082}
journal = []
issue = {Complete}
volume = {68}
journal type = {AC}
place = {United Kingdom}
year = {2014}
month = {Apr}
}