Cu/boehmite: A highly active catalyst for hydrogenolysis of glycerol to 1,2-propanediol

被引:83
|
作者
Wu, Zhijie [1 ,2 ]
Mao, Yuzhen [3 ,4 ]
Song, Meng [3 ,4 ]
Yin, Xiaoqian [3 ,4 ]
Zhang, Minghui [3 ,4 ]
机构
[1] China Univ Petr, State Key Lab Heavy Oil Proc, Beijing 102249, Peoples R China
[2] China Univ Petr, Key Lab Catalysis CNPC, Beijing 102249, Peoples R China
[3] Nankai Univ, Coll Chem, Key Lab Adv Energy Mat Chem MOE, Tianjin 300071, Peoples R China
[4] Nankai Univ, Coll Chem, Inst New Catalyt Mat Sci, Tianjin 300071, Peoples R China
关键词
Glycerol; 1,2-Propanediol; Boehmite; Copper; Hydrogenolysis; GAS-PHASE DEHYDRATION; PROPYLENE-GLYCOL; PRECIPITATION; HYDROGENATION; SOL;
D O I
10.1016/j.catcom.2012.12.006
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Small Cu clusters (similar to 1 nm) were highly dispersed over boehmite via an aqueous chemical reduction method. In comparison with Cu/gamma-Al2O3, Cu/SiO2 and Ru/C catalyst, Cu/boehmite catalyst showed the highest conversion and selectivity of 1,2-propanediol in the hydrogenolysis of glycerol. The good conversion and selectivity are ascribed to the small size of Cu metal clusters and the Lewis acid sites of boehmite, which provides high surface concentrations of active metal sites without C-C bond cleavage activity and promotes the dehydration of glycerol to acetol as the intermediate of 1,2-propanediol, respectively. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码:52 / 57
页数:6
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