Cascade conversion of glucose to 5-hydroxymethylfurfural over Bronsted-Lewis bi-acidic SnAl-beta zeolites

被引：16

作者：

An, Hyejin ^{[1
]}

Kweon, Sungjoon ^{[1
]}

Kang, Dong-Chang ^{[2
]}

Shin, Chae-Ho ^{[2
]}

Kim, Jeong F. ^{[1
]}

Park, Min Bum ^{[1
]}

Min, Hyung-Ki ^{[3
]}

机构：

[1] Incheon Natl Univ, Dept Energy & Chem Engn, Incheon 22012, South Korea

[2] Chungbuk Natl Univ, Dept Chem Engn, Cheongju 28644, Chungbuk, South Korea

[3] LOTTE Chem Res Inst, Daejeon 34110, South Korea

来源：

KOREAN JOURNAL OF CHEMICAL ENGINEERING | 2021年 / 38卷 / 06期

关键词：

Beta Zeolite; Glucose Conversion; Cascade Reaction; 5-Hydroxymethylfurfural; Bi-acidic Catalysts; EFFICIENT CATALYST; LEVULINIC ACID; ISOMERIZATION; BIOMASS; QUANTIFICATION; TRANSFORMATION; DEALUMINATION; SUGARS; SITES;

D O I：

10.1007/s11814-021-0752-1

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The control of acidic properties in a catalyst is one of the key features of technology utilizing biomass for chemical production. In this study, the Bronsted and Lewis bi-acidic SnAl-beta zeolites with controllable acidity were successfully prepared by acid dealumination and isomorphic substitution of Al by Sn, and applied for the cascade conversion of glucose to 5-hydroxymethylfurfural (5-HMF). The Lewis acidity of the catalysts was increased as the higher concentration of nitric acid used for the dealumination process. The optimum portion of Lewis/(Bronsted+Lewis) ratio was investigated to maximize the yield of 5-HMF, which is converted from the glucose via fructose by the cascade reaction. The conversion of glucose was increased until the L/(B+L) ratio reached 0.89 and the selectivity to 5-HMF reached its maximum at the Lewis acid portion of 0.76 among the total acid sites.

引用

页码：1161 / 1169

页数：9

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