Direct Production of Ethyl Levulinate from Carbohydrates Catalyzed by H-ZSM-5 Supported Phosphotungstic Acid

被引：44

作者：

Zhao, Shiqiang ^{[1
]}

Xu, Guizhuan ^{[2
]}

Chang, Junli ^{[1
]}

Chang, Chun ^{[1
,3
]}

Bai, Jing ^{[1
,3
]}

Fang, Shuqi ^{[1
,3
]}

Liu, Ze ^{[1
]}

机构：

[1] Zhengzhou Univ, Sch Chem Engn & Energy, Zhengzhou 450001, Peoples R China

[2] Henan Agr Univ, Coll Mech & Elect Engn, Zhengzhou 450002, Peoples R China

[3] Engn Lab Henan Prov Biorefinery Technol & Equipme, Zhengzhou 450001, Peoples R China

来源：

BIORESOURCES | 2015年 / 10卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Ethyl levulinate; Carbohydrates; H-ZSM-5; Phosphotungstic acid; LOW SULFURIC-ACID; CONVERSION; ETHANOL; CELLULOSE; GLUCOSE; BIOMASS; ESTERIFICATION; FRUCTOSE; KINETICS; ALCOHOL;

D O I：

10.15376/biores.10.2.2223-2234

中图分类号：

TB3 [工程材料学]; TS [轻工业、手工业、生活服务业];

学科分类号：

0805 ; 080502 ; 0822 ;

摘要：

A series of supported phosphotungstic acid (H3PW12O40, HPW) catalysts, including HPW/beta, HPW/Sn-beta, HPW/H-Y, HPW/H-ZSM-5, HPW/USY, HPW/ReUSY, and HPW/SBA-15, were prepared using an impregnation method for alcoholysis of fructose to ethyl levulinate in ethanol. Among these catalysts, HPW/H-ZSM-5 showed the highest catalytic activity, and the yield of ethyl levulinate from fructose increased with increasing phosphotungstic acid loading. The yield of ethyl levulinate reached 43.1% at 160 degrees C for 2 h over 20 wt.% HPW/H-ZSM-5, and the solid catalyst could be reused at least three times. EL yields of 19.1%, 27.3%, 37.4%, and 8.7% could be obtained from glucose, sucrose, inulin, and cellulose, respectively. Furthermore, the catalysts were characterized by BET surface area, X-ray diffraction, Fourier transform infrared spectroscopy, and X-ray photoelectron spectroscopy. HPW/H-ZSM-5 showed good catalytic activity for the direct production of ethyl levulinate from fructose.

引用

页码：2223 / 2234

页数：12

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