RT Journal Article
T1 Selective Conversion of Glucose to 5-Hydroxymethylfurfural by Using L-Type Zeolites with Different Morphologies
A1 Ginés-Molina, María José
A1 Ahmad, Nur Hidayahni
A1 Mérida-Robles, Sandra
A1 García-Sancho, Cristina
A1 Mintova, Svetlana
A1 Ng, Eng-Poh
A1 Maireles-Torres, Pedro Jesús
K1 Biomasa
K1 Aldehídos
K1 Furanos
K1 Catálisis heterogénea
AB In the present work, the morphology of L-type zeolite (LTL topology) has been modified in order to evaluate the influence of several protonated-form LTL-zeolites with different morphologies on their stability and catalytic performance in the conversion of glucose into 5-hydroxymethylfurfural (5-HMF). Physico-chemical characterization of the LTL-based catalysts has revealed that the three types of morphologies (needle, short rod and cylinder) are active, providing complete glucose conversion and high 5-HMF yield values. The addition of CaCl2 had a positive influence on the catalytic performance. It was found that morphology influences the textural and acid properties of LTL-zeolites, and hence their catalytic performance. The best catalytic results have been obtained with the NEEDLE-LTL, showing nanoparticles with a length of 4.46 micrometer a width of 0.63 micrometer, which attains a 5-HMF yield of 63%, at 175 ºC after 90 min of reaction, and a glucose conversion of 88%. The reusability study has revealed a progressive decrease in 5-HMF yield after each catalytic cycle. Different regeneration methods have been essayed without recovering the initial catalytic activity. The presence of organic molecules in micropores has been demonstrated by TG analysis, which are diffcult to remove even after a regeneration process at 550  C.
PB MDPI
YR 2019
FD 2019-12-16
LK https://hdl.handle.net/10630/23797
UL https://hdl.handle.net/10630/23797
LA eng
NO This research was funded by the Spanish Ministry of Economy and Competitiveness (RTI2018-94918-B-C44), FEDER (European Union) funds and FRGS (203/PKIMIA/6711642).
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 4 mar 2026