NaFeO2-Fe3O4 catalyst from blast furnace dust for production of biodiesel at low temperature
Recently, Dr Yi-Tong Wang (Associate Prof., College of Metallurgy and Energy, North China University of Science and Technology) and Prof. Zhen Fang published an article in Industrial Crops & Products about using highly stable NaFeO2-Fe3O4 composite catalyst from blast furnace dust for biodiesel production.
Highly stable catalysts were prepared by wet impregnation of blast furnace dust (BFD) in Na2CO3·H2O, Na2CO3·10H2O, NaHCO3 and Na2CrO4 solution and subsequent calcination of 300-600 oC. At low temperature of 65 oC for 2 h with methanol/oil molar ratio of 15/1, high biodiesel yields of 100 wt% were obtained with 7wt% Na2CO3·H2O@BFD300 and Na2CO3·H2O@BFD400 catalyst (impregnating with Na2CO3·H2O solution and calcining at 300 and 400 oC) added for the first use. Na2CO3·H2O@BFD300 catalyst exhibited outstanding stability and recyclability with biodiesel yields of 100 wt% at the fifth use (93 wt% at the twelfth use) owing to impregnated Na2CO3 reacting with Fe2O3 in dust to produce stable and active nanocomponents of NaFeO2 (32.42 nm) and magnetic nanocomponent of Fe3O4 (size of 3.14 nm and Ms of 6.16 Am2/kg) in dust existing. The study provided practical guidance for biodiesel industrial production.
Related results were published in Industrial Crops & Products:
XM Wang, YN Zeng, LQ Jiang, YT Wang*, JG Li*, LL Kang, R Ji, D Gao, FP Wang, Q Yu, YJ Wang, Zhen Fang*. Highly stable NaFeO2-Fe3O4 Composite Catalyst from Blast Furnace Dust for Efficient Production of Biodiesel at Low Temperature, Industrial Crops and Products, 182, 114937, https://doi.org/10.1016/j.indcrop.2022.114937 (2022).
Efficient production of biodiesel can be achieved with Na2CO3·H2O@BFD300 catalyst for 12 reuses with 92.56 wt% yield.
使用Na2CO3·H2O@BFD300催化剂实现生物柴油高效生产，循环12次后，产率仍可达92.56 wt%。
王一同博士和方真教授在国际学术期刊Industrial Crops & Products发表学术论文:
高炉粉尘制备NaFeO2-Fe3O4复合催化剂用于生物柴油合成
最近，王一同博士（华北理工大学冶金与能源学院副教授）和方真教授在国际学术期刊Industrial Crops & Products（IF: 5.645，Q1）发表题为“高炉粉尘制备NaFeO2-Fe3O4复合催化剂用于生物柴油合成”的研究性论文。
利用Na2CO3·H2O，Na2CO3·10H2O，NaHCO3和Na2CrO4水溶液分别湿法浸渍高炉粉尘，于300-600 oC高温活化制备高稳定性催化剂。在65 oC、醇油摩尔比15/1、催化剂用量7 wt%的条件下反应2 h，Na2CO3·H2O@BFD300和Na2CO3·H2O@BFD400催化剂获得了100 wt%的产率。由于浸渍的Na2CO3和高炉粉尘中的Fe2O3反应生成稳定且有活性的纳米组分NaFeO2（32.42 nm）以及高炉粉尘中含有的磁性纳米组分Fe3O4（晶粒：3.14 nm；磁性：6.16 Am2/kg），Na2CO3·H2O@BFD300催化剂表现出优异的稳定性和可回收性，循环12次后仍可获得93 wt%的产率。该研究为生物柴油的工业化生产提供了实用指导。详情可见：
XM Wang, YN Zeng, LQ Jiang, YT Wang*, JG Li*, LL Kang, R Ji, D Gao, FP Wang, Q Yu, YJ Wang, Zhen Fang*. Highly stable NaFeO2-Fe3O4 Composite Catalyst from Blast Furnace Dust for Efficient Production of Biodiesel at Low Temperature, Industrial Crops and Products, 182, 114937, https://doi.org/10.1016/j.indcrop.2022.114937 (2022).
