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- Title
Catalysis of Glucose to 5-Hydroxymethylfurfural using Sn-Beta Zeolites and a Brønsted Acid in Biphasic Systems.
- Authors
Guihua Yang; Chao Wang; Gaojin Lyu; Lucia, Lucian A.; Jiachuan Chen
- Abstract
Selective and efficient dehydration of glucose to 5-hydroxymethylfurfural (HMF) has been a widely explored concept recently, especially from the perspective of employing environmentally benign heterogeneous catalysts. However, there has been a relative paucity of data regarding the application of Sn-Beta zeolites, a category of catalysts that are very innocuous, inexpensive, and effective, toward evaluating bio-based conversions. Sn-Beta was shown to possess good Lewis acidity for catalyzing glucose isomerization to fructose in aqueous media at low pH and accelerating dehydration of glucose to HMF in a biphasic system with high yields. Sn-Beta zeolite with NH4F as the mineralizing agent (Sn-Beta- F) was a more effective catalyst for the selective dehydration of glucose to HMF. An optimal HMF yield of 53.0% was obtained over Sn-Beta-F zeolite in an acidic environment (pH 1) after 70 min at 190 °C. The reaction system was also effective for conversion of cellulose to HMF with a yield of 32.2% preliminarily.
- Subjects
HYDROXYMETHYLFURFURAL; CATALYTIC activity; HETEROGENEOUS catalysts; ZEOLITES; BRONSTED acids; DEHYDRATION reactions
- Publication
BioResources, 2015, Vol 10, Issue 3, p5863
- ISSN
1930-2126
- Publication type
Article
- DOI
10.15376/biores.10.3.5863-5875