Continuous Production of Lactic Acid from Glycerol over Bifunctional Catalysts under Base-Free Conditions Using a Liquid- Phase Flow Reactor

被引：9

作者：

Kano, Erisa ^{[1
]}

Aihara, Takeshi ^{[1
]}

Ghampson, I. Tyrone ^{[1
]}

Nogami, Takeyuki ^{[1
]}

Miura, Hiroki ^{[1
,2
,3
]}

Shishido, Tetsuya ^{[1
,2
,3
]}

机构：

[1] Tokyo Metropolitan Univ, Grad Sch Urban Environm Sci, Dept Appl Chem Environm, Tokyo 1920397, Japan

[2] Tokyo Metropolitan Univ, Res Ctr Hydrogen Energy Based Soc, Tokyo 1920397, Japan

[3] Kyoto Univ, Elements Strategy Initiat Catalysts & Batteries, Kyoto 6158520, Japan

来源：

ACS SUSTAINABLE CHEMISTRY & ENGINEERING | 2022年 / 10卷 / 37期

关键词：

continuous liquid-phase upgrading; glycerol; lactic acid; layered-Nb2O5; OXIDATIVE DEHYDROGENATION; CANNIZZARO REACTION; BRONSTED ACIDITY; RAW-MATERIAL; CONVERSION; LEWIS; OXIDE; CARBON; HYDROGENOLYSIS; GLUCOSE;

D O I：

10.1021/acssuschemeng.2c00129

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The highly efficient conversion of glycerol into valueadded chemicals with high selectivity is an attractive issue in biorefineries. In this study, the performances of metal-acid bifunctional catalysts for converting glycerol to lactic acid were investigated under an oxygen atmosphere without additives, such as strong bases using a continuous liquid-phase flow reactor. We found that Pt/L-Nb(2)O5 (L-Nb2O5: layered Nb2O5) is the most promising catalyst for the continuous production of lactic acid from glycerol due to the optimal oxidation ability and the high Lewis and Bronsted acidities of Pt/L-Nb2O5. Furthermore, Pt/L-Nb2O5 exhibited a stable catalytic performance (lactic acid formation rate of 25.3 mmol g(-1) h(-1) with 77% selectivity) for 80 h without a strong base.

引用

页码：12072 / 12081

页数：10

共 72 条

[1] Relationship between Acid-Base Properties and the Activity of ZrO2-Based Catalysts for the Cannizzaro Reaction of Pyruvaldehyde to Lactic Acid [J].