Sorbitol hydrogenolysis to glycerol and glycols over M-MgO (M = Ni, Co, Cu) nanocomposite: A comparative study of active metals

被引：23
作者：
Wang, Xicheng [1 ]
Liu, Xiaoran [1 ,2 ]
Xu, Yue [3 ]
Peng, Gongming [1 ]
Cao, Quan [1 ]
Mu, Xindong [1 ]
机构：
[1] Chinese Acad Sci, Key Lab Biobased Mat, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266101, Peoples R China
[2] Univ Chinese Acad Sci, Being 100049, Peoples R China
[3] China Univ Geosci, Sch Water Resources & Environm, Beijing 100083, Peoples R China
来源：
CHINESE JOURNAL OF CATALYSIS | 2015年 / 36卷 / 09期
基金：
中国国家自然科学基金;
关键词：
Biomass; Hydrogenolysis; Sorbitol; Magnesia; Supported metal catalyst; Bifunctional catalyst; BIODIESEL DERIVED GLYCEROL; ETHYLENE-GLYCOL; CELLULOSE; 1,2-PROPANEDIOL; CONVERSION; BIOMASS; 1,2-ALKANEDIOLS;
D O I：
10.1016/S1872-2067(15)60928-7
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
The activities and selectivities of MgO-supported Ni, Cu, and Co catalysts have been compared in aqueous-phase hydrogenolysis of sorbitol to glycerol and glycols. All catalysts effectively catalyzed the sorbitol conversion into C2 and C3 polyols like glycerol, 1,2-propylene glycol, and ethylene glycol, but with different product distributions. The differences in activities and selectivities are ascribed to their different dehydrogenation/hydrogenation activities. The influences of base promoter, temperature, H-2 pressure, and reaction time were also studied. Added base promoter and prolonged reaction time enhanced sorbitol conversion for the three catalysts, but led to product degradation and decreased selectivity over Ni-MgO and Co-MgO, whereas selectivity maintained almost unchanged over Cu-MgO. (C) 2015, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
引用
收藏
页码：1614 / 1622
页数：9
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