Sulfated Pillared Clay as Catalyst in Glycerol Esterification with Caprylic Acid

Author(s)

Dal Bosco, Sandra Maria ; Goncalves, Maraisa ; Figueiredo, Flavia C. A. ; Galhardo, Thalita ; Carvalho, Wagner A.

• Document type: Journal article
• Source: WASTE AND BIOMASS VALORIZATION; v. 7, n. 5, p. 1279-1288, OCT 2016.
• Web of Science Citations: 6

Abstract

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. (AU)

• FAPESP's process: 13/21160-6 - Catalytic conversion of glycerol and acetol promoted by metal nanoparticles supported on carbon and molecular sieves
• Grantee: Wagner Alves Carvalho
• Support Opportunities: Regular Research Grants
• FAPESP's process: 11/14626-3 - Catalytic convertion of glycerol in liquid and vapor phase to products of higher commercial value
• Grantee: Wagner Alves Carvalho
• Support Opportunities: Regular Research Grants