Influence of carbon based supports on selectivity behavior of diols and propanol in Ru catalyzed glycerol hydrogenolysis

被引：50
作者：
Mane, Rasika [1 ,2 ]
Patil, Shivanand [1 ]
Shirai, Masayuki [3 ]
Rayalu, Sadhana [2 ]
Rode, Chandrashekhar [1 ]
机构：
[1] CSIR, Chem Engn & Proc Dev Div, Nat Chem Lab, Pune 411008, Maharashtra, India
[2] CSIR, NEERI, Environm Mat Div, Nagpur 440020, Maharashtra, India
[3] Iwate Univ, Dept Chem & Bioengn, Morioka, Iwate 0208550, Japan
来源：
APPLIED CATALYSIS B-ENVIRONMENTAL | 2017年 / 204卷
关键词：
Graphite supports; Glycerol hydrogenolysis; Propanediols; Propanol; Structural effects; ION-EXCHANGE-RESIN; RUTHENIUM; OXIDATION; GRAPHENE; OXIDE; 1,2-PROPANEDIOL; NANOPARTICLES; CONVERSION; PROPYLENE; BIOMASS;
D O I：
10.1016/j.apcatb.2016.11.032
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：
Activated carbon (AC) and three graphite materials were studied as supports for Ru catalyzed glycerol hydrogenolysis to propanediols and 1-propanol. Structural characteristics of AC and graphite materials were found to greatly affect the reducibility and particle size of supported Ru and hence, the activity and product distribution in glycerol hydrogenolysis. XRD of graphite materials showed distinctly (002) plane having highly organized layered structure and the peak intensity decreased in the order of Ru/KS150 > Ru/HSAG100 > Ru/KS6 due to decrease in the graphite sheet thickness. In Raman, the intense D band in HSAG100 compared to that in KS6 and KS150 samples indicated its highly amorphous nature or mixed carbon hybridization. Glycerol conversion for Ru on AC was higher than that on graphite and among different graphites, it showed a descending activity order of Ru/KS6>Ru/HSAG100>Ru/KS150. The product distribution for AC and HSAG100 supported Ru was similar, giving 1-propanol (45%) along with 1,2-propanediol (1,2-PDO) (37%) and 1,3-propanediol (1,3-PDO) (9-11%). For graphite supports, availability of Ru although bigger in size (4-5 nm), would be higher on the surface than in case of AC which formed deep hydrogenolysis products like 1-, 2- propanol, ethanol etc. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：134 / 146
页数：13
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