Catalytic conversion of carbohydrates to levulinic acid with mesoporous niobium-containing oxides

被引：33
作者：
Liu, Yanxiu [1 ]
Li, Hu [1 ]
He, Jian [1 ]
Zhao, Wenfeng [1 ]
Yang, Tingting [1 ]
Yang, Song [1 ,2 ]
机构：
[1] Guizhou Univ, State Local Joint Lab Comprehens Utilizat Biomass, State Key Lab Breeding Base Green Pesticide & Agr, Minist Educ,Ctr Res & Dev Fine Chem, Guiyang 550025, Peoples R China
[2] East China Univ Sci & Technol, Sch Pharm, Shanghai 200237, Peoples R China
来源：
CATALYSIS COMMUNICATIONS | 2017年 / 93卷
关键词：
Heterogeneous catalysis; Biomass; Levulinic acid; Bronsted/Lewis acid; GAMMA-VALEROLACTONE; HYDROTHERMAL DECOMPOSITION; ETHYL LEVULINATE; GLUCOSE; BIOMASS; DEHYDRATION; DERIVATIVES; CELLULOSE; FRUCTOSE; DIOXIDE;
D O I：
10.1016/j.catcom.2017.01.023
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A series of niobium-containing catalysts were prepared by hydrothermal synthesis method, and characterized by NH3-TPD, TEM, XRD, N-2 adsorption-desorption and pyridine-adsorptionFT-IR techniques. Fe-NbP (Fe-doped niobium phosphate) with higher total acid density (3.59 mmol/g) and appropriate Bronsted/Lewis acid ratio (1.32) was found to show superior activity in production of levulinic acid (LA) from glucose, and a high LA yield of 64.2% was achieved at 180 C in 3.0 h. The effect of various reaction parameters such as temperature, time, catalyst dosage, and substrate concentration on LA production has been investigated. The catalyst can be recycled for several times without significant loss of activity. (C) 2017 Elsevier B.V. All rights reserved.
引用
收藏
页码：20 / 24
页数：5
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