Hydrogenolysis of biomass-derived sorbitol over La-promoted Ni/ZrO2 catalysts

被引：13

作者：

Cai, Chiliu ^{[1
,2
,3
]}

Wang, Haiyong ^{[1
,2
,3
]}

Xin, Haosheng ^{[1
,2
,3
]}

Zhu, Changhui ^{[1
,2
,3
]}

Zhang, Qi ^{[1
,2
,3
]}

Zhang, Xinghua ^{[1
,2
,3
]}

Wang, Chenguang ^{[1
,2
,3
]}

Liu, Qiying ^{[1
,2
,3
]}

Ma, Longlong ^{[1
,2
,3
]}

机构：

[1] Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China

[2] Chinese Acad Sci, Key Lab Renewable Energy, Guangzhou 510640, Peoples R China

[3] Guangdong Key Lab New & Renewable Energy Res & De, Guangzhou 510640, Peoples R China

来源：

RSC ADVANCES | 2020年 / 10卷 / 07期

基金：

国家重点研发计划; 中国国家自然科学基金;

关键词：

SELECTIVE HYDROGENOLYSIS; ETHYLENE-GLYCOL; PROPYLENE-GLYCOL; NI; CONVERSION; XYLITOL; TRANSFORMATION; HYDROGENATION; CHEMICALS; CELLULOSE;

D O I：

10.1039/c9ra10394e

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Ni/La2O3/ZrO2 catalysts were prepared by a step-by-step impregnation method through regulation of the contents of the active component and alkali. The introduction of an alkaline promoter not only enhanced the alkalinity of the catalyst but also improved the dispersion of Ni on the catalyst owing to the strong interaction between Ni2+ and alkali promoter. The synergistic effect between Ni and La2O3 was beneficial to selective hydrogenolysis of sorbitol. Under the optimal reaction conditions, sorbitol conversion reached nearly 100% and target products (ethylene glycol, 1,2-propanediol, and glycerol) selectivity reached 74.8%. Metal-alkali coordination mechanism and possible pathways for target products formation were proposed.

引用

页码：3993 / 4001

页数：9

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