Comparison of niobium and zirconium oxides-based catalysts and super acidified ion exchange resins as efficient catalysts for dehydration of fructose to hmf
International Journal of Development Research
Comparison of niobium and zirconium oxides-based catalysts and super acidified ion exchange resins as efficient catalysts for dehydration of fructose to hmf
Received 20th February, 2022; Received in revised form 19th March, 2022; Accepted 11th April, 2022; Published online 20th May, 2022
Copyright©2022, Ilidio Lazarieviez Antonio and João Guilherme Rocha Poço. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Background: The obtaining of HMF from fructose reaction was studied using a continuous packed bed tubular reactor (PBR) using catalysts based on niobium and zirconium compounds, as well as modified ion exchange resins (resins CT275 and SGC650H superacidificated) and, using as solvents, DMSO and aqueous solutions of DMSO. Among all catalysts prepared, the superacidificated ion exchange resins presented the best performance, followed by the catalysts based on zirconium compounds and those produced with niobium compounds. Sulfonating the acidic cationic has a positive effect on conversion and yield of HMF increasing at least 10% for the SGC650H maintaining the same residence time. The best results observed were for the feeding system consisting of DMSO and fructose. The presence of mesoporous seems to reduce the performance of supported zirconium materials studied as catalysts. For allcatalystsused, it was observed that the presence of water in the solvent reactive promote a marked decrease in the conversion of fructose to HMF.
