title: Production of furfural from xylose, water-insoluble hemicelluloses and water-soluble fraction of corncob via a tin-loaded montmorillonite solid acid catalyst.
abstract: The conversion of xylose, water-insoluble hemicelluloses (WIH) and water-soluble fraction (WSF) of corncob to furfural was performed using montmorillonite with tin ions (Sn-MMT) containing double acid sites as a solid acid catalyst. The co-existence of Lewis acids and Brønsted acids in Sn-MMT was shown to improve the furfural yield and selectivity. 76.79% furfural yield and 82.45% furfural selectivity were obtained from xylose using Sn-MMT as a catalyst in a biphasic system with 2-s-butylphenol (SBP) as the organic extracting layer and dimethyl sulfoxide (DMSO) as the co-solvent in contact with an aqueous phase saturated with NaCl (SBP/NaCl-DMSO) at 180°C for 30min. Furthermore, Sn-MMT also demonstrated the excellent catalytic performance in the conversion of pentose-rich materials of corncob and 39.56% and 54.15% furfural yields can be directly obtained from WIH and WSF in the SBP/NaCl-DMSO system, respectively.
authors.affiliation: State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China.
authors.forename: Huiling
authors.initials: H
authors.lastname: Li
authors.affiliation: State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China. Electronic address: renjunli@scut.edu.cn.
authors.forename: Junli
authors.initials: J
authors.lastname: Ren
authors.affiliation: State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China.
authors.forename: Linjie
authors.initials: L
authors.lastname: Zhong
authors.affiliation: State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China; Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, China. Electronic address: rcsun3@bjfu.edu.cn.
authors.forename: Runcang
authors.initials: R
authors.lastname: Sun
authors.affiliation: Biomaterials Research Center, Guangzhou Sugarcane Industry Research Institute, Guangzhou 510316, China.
authors.forename: Lei
authors.initials: L
authors.lastname: Liang
mesh_terms: D001546:Bentonite / Q000737:chemistry*; D018533:Biomass; D002384:Catalysis; D005662:Furaldehyde / Q000138:chemical synthesis*; D008872:Microwaves; D011134:Polysaccharides / Q000737:chemistry*; D012995:Solubility; D014001:Tin / Q000737:chemistry*; D014867:Water / Q000737:chemistry; D014994:Xylose / Q000737:chemistry*; D003313:Zea mays / Q000737:chemistry* / Q000528:radiation effects
chemical_list: D011134:Polysaccharides; D014867:Water; D001546:Bentonite; D014001:Tin; C007916:hemicellulose; D014994:Xylose; D005662:Furaldehyde
keywords: Biphasic system; Furfural; Pentose-rich carbohydrate; Sn-MMT; Xylose