One-step oxidehydration of glycerol to acrylic acid using ETS-10-like vanadosilicates

Author(s)

Paula, Alex Silva ; Possato, Gustavo ; Ratero, Davi Rubinho ; Contro, Janine ; Keinan-Adamsky, Keren ; Soares, Ricardo Reis ; Goobes, Gil ; Martins, Leandro ; Nery, Jose G.

• Document type: Journal article
• Source: Microporous and Mesoporous Materials; v. 232, p. 151-160, SEP 15 2016.
• Web of Science Citations: 8

Abstract

Vanadosilicates isostructural to ETS-10 and AM-6 microporous materials were synthesized hydrothermally using derivatives of cis- and trans-3,5-dimethyl-piperidine as organic structure directing agents (SDAs) and were subsequently tested as heterogeneous catalysts for the oxidehydration of glycerol to acrylic acid. The best performances were obtained with vanadosilicates prepared with 1,1,3,5-tetramethyl piperidinum cations, which were capable of converting 93.6% of glycerol to acrylic acid in one step, with 85.4% selectivity. Other important chemicals such as acrolein (3.8%), propanal (2.3%), acetaldehyde (3.2%), acetic acid (2.5%), and propionic acid (1.4%) were produced in smaller amounts. The results clearly indicated that these vanadosilicates are potential multifunctional catalysts capable of performing the oxidehydration of glycerol to acrylic acid in a single step. Spectroscopic data obtained from (51)VMAS-NMR, UV-Vis, XPS, and Raman scattering analyses suggested that the selectivity of these vanadosilicates for the oxidative dehydration of glycerol to acrylic acid could be attributed to the capacity of the vanadium species for dynamic adoption of multiple oxidation states during the catalytic reaction. (C) 2016 Elsevier Inc. All rights reserved. (AU)

• FAPESP's process: 11/51851-5 - Syntheses and characterization of nanozeolites-enzymes complexes and their use as heterogeneous catalysts in the production of biodiesel by trans esterification of Palm Oil and algae oils (Dunaliella Salina and Haematococcus pluvialis) with ethanol
• Grantee: Jose Geraldo Nery
• Support Opportunities: Regular Research Grants
• FAPESP's process: 10/01449-3 - Development of porous heterogeneous catalysts for the conversion of renewable feedstocks
• Grantee: Leandro Pierroni Martins
• Support Opportunities: Research Grants - Young Investigators Grants
• FAPESP's process: 05/54703-6 - Synthesis of enantioselective solid catalysts: the intellectual, technological and synthetic challenge of chiral zeolites
• Grantee: Jose Geraldo Nery
• Support Opportunities: Research Grants - Young Investigators Grants