Novel peanut shell biochar supported catalyst for transesterification reaction [新型花生壳生物炭基催化剂催化酯交换反应]

作者：Yan J.; Wang S.; Yuan H.^*; Chen Y.; Shan R.

来源：Acta Energiae Solaris Sinica, 2020, 41(4): 257-263.

• Biocatalysts
• Biodiesel
• Catalysts
• Peanut shell
• Solid wastes

The peanut shell is utilized as the raw material for the preparation of cost-effective and high-efficiency solid base catalysts for the transesterification reaction. The chemical and structural properties of catalysts are examined by scanning electron microscope(SEM), energy dispersive spectrometer(EDS), X-ray diffraction(XRD), N2 adsorption/desorption, Fourier-transform infrared spectroscopy(FTIR) and the Hammett indicator method. In addition, the effects of catalyst preparation conditions, reaction conditions and the catalyst reusability are studied. The best performance is observed for the resulting 30K/PB-600 catalyst, and over biodiesel yield of 96.3% is achieved at catalyst amount of 6%, methanol/oil molar ratio of 7:1 and reaction time of 150 min. After 8 repeated use, only a slight deactivation is found (above 82% of yield obtained) due to K+ ions leached into reaction media.

• 单位
  中国科学院; 中国科学院大学