• Santosh Kumar Yedla
• Animes Kumar Golder
• Nageswara Rao Peela

The conversion of carbohydrates to 5-hydroxymethylufurfural (5-HMF) in a biphasic system have been studied by using various H-form zeolite catalysts. The biphasic reactor system consists of aqueous phase and organic phase (1:2 w/w).The aqueous phase which contains of feed stock, catalyst, sodium chloride (NaCl), Deionized water (dH20) and an organic phase which contains the methyl-isobutyl-ketone (MIBK).The effects of different factors, such as the type of catalysts, reaction temperature and reaction time, on the yields of 5-HMF have been studied systematically in the biphasic system. The catalysts have been characterized by various analytical techniques (XRD, FETEM, N2-Sorption, Py-FTIR, and NH3-TPD) to study on crystal structure, morphology, acid properties, and texture, respectively. Among the catalysts tested, H-Beta showed the highest 5-HMF yield of 94% with a fructose conversion of 98%. The highest selectivities to 5-HMF obtained with the glucose (74%) and cellulose (41%) substrates are, respectively, at 180°C. The H-Beta showed excellent stability without any deactivation even after 5 cycles have been reused.

Carbohydrates, 5-Hydroxymethylfurfural, Biphasic system, Zeolites

"Efficient Conversion of Carbohydrates to 5-Hydroxymethylfurfural over Mesoporous Zeolites", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 5, page no.239-250, May-2019, Available :http://www.jetir.org/papers/JETIRBM06039.pdf

"Efficient Conversion of Carbohydrates to 5-Hydroxymethylfurfural over Mesoporous Zeolites", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 5, page no. pp239-250, May-2019, Available at : http://www.jetir.org/papers/JETIRBM06039.pdf