Sulfated Pillared Clay as Catalyst in Glycerol Esterification with Caprylic Acid

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• 作者：Sandra Maria Dal Bosco ; Maraisa Gonçalves…
• 关键词：Glycerol ; Esterification ; Sulfatation ; Octanoic acid ; Pillared clay
• 刊名：Waste and Biomass Valorization
• 出版年：2016
• 出版时间：October 2016
• 年：2016
• 卷：7
• 期：5
• 页码：1279-1288
• 全文大小：2,219 KB
• 刊物类别：Engineering
• 刊物主题：Engineering, general
  Environment
  Waste Management and Waste Technology
  Industrial Pollution Prevention
  Renewable and Green Energy
  Environmental Engineering
  
• 出版者：Springer Netherlands
• ISSN：1877-265X
• 卷排序：7

文摘

Sulfated pillared clay (AP-S) was tested in the catalytic conversion of glycerol by esterification reaction with caprylic acid (octanoic acid, OA). The clay was treated with concentrated fuming sulfuric acid. The presence of sulfur as well as an increase in the acidity of the solid demonstrate the suitability of the sulfatation process. The best conditions for the esterification reaction with OA were OA:glycerol molar ratio 8:1, 423 K and 5 wt% catalyst. Total glycerol conversion was achieved after 5 h and yield of 27, 43 and 30 % respectively for monocarpylin, dicaprylin and tricaprylin were obtained.