title: Solid acids as catalysts for the conversion of D-xylose, xylan and lignocellulosics into furfural in ionic liquid.
abstract: With the aim to develop an ecologically viable catalytic pathway for furfural production without the use of inorganic acids, H3PW12O40, Amberlyst-5 and NKC-9 (macroporous styrene-based sulfonic acid resin) were used as catalysts for producing furfural from xylose, xylan and lignocellulosic biomass in [BMIM]Cl under microwave irradiation at atmospheric pressure. A surprisingly high furfural yield of 93.7% from xylan was obtained by H3PW12O40 at 160 °C in 10 min. The degradation of furfural affected by single addition of [BMIM]Cl and solid acids was also investigated. The IL could be easily recycled and reused with stable solvent capacity for multiple runs (5×) after the product furfural was extracted with ethyl acetate.
authors.affiliation: College of Environmental Science and Engineering, Nankai University, Tianjin 300071, PR China.
authors.forename: Luxin
authors.initials: L
authors.lastname: Zhang
authors.forename: Hongbing
authors.initials: H
authors.lastname: Yu
authors.forename: Pan
authors.initials: P
authors.lastname: Wang
mesh_terms: D000143:Acids / Q000737:chemistry*; D018533:Biomass; D002384:Catalysis; D005662:Furaldehyde / Q000378:metabolism*; D007093:Imidazoles / Q000737:chemistry; D052578:Ionic Liquids / Q000737:chemistry*; D008031:Lignin / Q000378:metabolism*; D059027:Recycling; D013696:Temperature; D013997:Time Factors; D014990:Xylans / Q000378:metabolism*; D014994:Xylose / Q000378:metabolism*
chemical_list: D000143:Acids; D007093:Imidazoles; D052578:Ionic Liquids; D014990:Xylans; C036909:lignocellulose; C502841:1-butyl-3-methylimidazolium chloride; D008031:Lignin; D014994:Xylose; D005662:Furaldehyde