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• 作者：Yigang Wang ; Xiaoan Nie ; Zhenxing Liu
• 关键词：Styrax confusus Hemsl ; Transesterification ; Magnetic solid catalyst ; Biodiesel
• 刊名：Journal of the American Oil Chemists' Society
• 出版年：2015
• 出版时间：June 2015
• 年：2015
• 卷：92
• 期：6
• 页码：813-820
• 全文大小：495 KB
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• 作者单位：Yigang Wang (1) (2)
  Xiaoan Nie (1) (2)
  Zhenxing Liu (1) (2)
  
  1. National Engineering Laboratory for Biomass Chemical Utilization, Key and Open Laboratory on Forest Chemical Engineering, Key Laboratory of Biomass Energy and Material, Institute of Chemical Industry of Forest Products, Nanjing, 210042, Jiangsu Province, China
  2. Institute of New Technology of Forestry, CAF, Beijing, 100091, China
  
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Industrial Chemistry and Chemical Engineering
  Analytical Chemistry
  Chemistry
  Biotechnology
  Biomaterials
  Agriculture
  
• 出版者：Springer Berlin / Heidelberg
• ISSN：1558-9331

文摘

Biodiesel has been identified as a suitable resource that can be produced from biomass such as Styrax confusus Hemsl. In the current study, biodiesel was synthesized from Styrax confusus Hemsl oil catalyzed by a magnetic solid acid heterogeneous catalyst S₂O₈ 2?/sup>/ZrO₂-TiO₂-Fe₃O₄, which had a high recovery rate and reusability. The catalyst was prepared by co-precipitation and characterized by Fourier transform infrared spectroscopy, X-ray diffraction and Brunauer, Emmett and Teller (BET) adsorption. The properties of the catalyst, including the recovery rate, usage count, magnetic susceptibility and catalytic efficiency, were studied. The results showed that the catalyst has a BET pore diameter of 1.74?nm, BET area of 7.3?m2/g, molar magnetic susceptibility of 1.83?×?10? m3/kg and tetragonal structure. In addition, the influences of reaction conditions on yields of biodiesel were also discussed. A fatty acid methyl ester (FAME) yield of 90.02?% was obtained under the conditions of reaction time 1.5?h, reaction temperature 373?K, catalyst amount 5?%, and methanol-to-oil molar ratio 8:1. A FAME yield of 65.5?% was obtained when the catalyst was used for the fourth time.