Catalytic hydrolysis of lignocellulosic biomass into 5-hydroxymethylfurfural in ionic liquid

• Published in: Bioresource technology Vol. 102; no. 5; pp. 4179 - 4183
• Main Authors: Wang, Pan, Yu, Hongbing, Zhan, Sihui, Wang, Shengqiang
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier Ltd 01-03-2011; [New York, NY]: Elsevier Ltd; Elsevier
• Subjects: 5-Hydroxymethylfurfural; Acid catalysis; Biofuels; Biological and medical sciences; Biomass; Catalysis; Catalysts; Cellulose; Chlorides; Feedstock; Fundamental and applied biological sciences. Psychology; Furaldehyde - analogs & derivatives; Furaldehyde - chemical synthesis; Glucose; Hydrolysis; Imidazoles - chemistry; Ionic liquid; Lignin - chemistry; Lignocellulosic biomass; Microwaves; Plant Components, Aerial - chemistry; Straw; Temperature; Triticum - chemistry; Triticum aestivum; Acid catalysis; 5-Hydroxymethylfurfural; Lignocellulosic biomass; Cellulose; Ionic liquid; Hydrolysis; Furfural(hydroxymethyl); Lignocellulosics; Biomass
• ISSN: 0960-8524; 1873-2976
• DOI: 10.1016/j.biortech.2010.12.073

Production of 5-hydroxymethylfurfural (HMF) from cellulose catalyzed by solid acids and metal chlorides was studied in the 1-butyl-3-methylimidazolium chloride ([BMIM]Cl) under microwave irradiation. Among the applied catalysts, the use of CrCl3/LiCl resulted in the highest yield of HMF. The effects of catalyst dosage (mole ratio of catalyst to glucose units in the feedstock) and reaction temperature on HMF yields were investigated to obtain optimal process conditions. With the 1:1mol ratio of catalyst to glucose unit, the HMF yield reached 62.3% at 160°C for 10min. Untreated wheat straw was also investigated as feedstock to produce HMF for the practical use of raw biomass, in which the HMF yield was comparable to that from pure cellulose. After the extraction of HMF, [BMIM]Cl and CrCl3/LiCl could be reused and exhibited no activity loss after three successive runs.