TY - JOUR
T1 - The selective continuous flow synthesis of lower alcohols from polyols-a mechanistic interpretation of the results
AU - Van Ryneveld, Esti
AU - Mahomed, Abdul S.
AU - Van Heerden, Pieter S.
AU - Green, Mike J.
AU - Holzapfel, Cedric
AU - Friedrich, Holger B.
PY - 2014/3/1
Y1 - 2014/3/1
N2 - In an endeavour to understand the hydrogenolysis pathway of glycerol to lower alcohols over Ni on Al2O3 and SiO2 catalysts, the role of the intermediates (1,2-propanediol (1,2-PDO), 1,3-propanediol (1,3-PDO), ethylene glycol (EG) and ethanol) was investigated. Under the reaction conditions employed in this study, it was clear that the hydrogenolysis of the C-C and C-O bonds of glycerol takes place to a lesser extent as compared to dehydrogenation and dehydration which are seen as the dominating initial steps. Ethanol was produced in high selectivities (~67%) with 1,2-propanediol as feed and 1-propanol (1-PO, ~80%) was the main product obtained when 1,3-propanediol was used as feed. Ethylene glycol gave methanol and methane as products, whereas ethanol gave methane and CO2 as major products.
AB - In an endeavour to understand the hydrogenolysis pathway of glycerol to lower alcohols over Ni on Al2O3 and SiO2 catalysts, the role of the intermediates (1,2-propanediol (1,2-PDO), 1,3-propanediol (1,3-PDO), ethylene glycol (EG) and ethanol) was investigated. Under the reaction conditions employed in this study, it was clear that the hydrogenolysis of the C-C and C-O bonds of glycerol takes place to a lesser extent as compared to dehydrogenation and dehydration which are seen as the dominating initial steps. Ethanol was produced in high selectivities (~67%) with 1,2-propanediol as feed and 1-propanol (1-PO, ~80%) was the main product obtained when 1,3-propanediol was used as feed. Ethylene glycol gave methanol and methane as products, whereas ethanol gave methane and CO2 as major products.
UR - http://www.scopus.com/inward/record.url?scp=84893908937&partnerID=8YFLogxK
U2 - 10.1039/c3cy00649b
DO - 10.1039/c3cy00649b
M3 - Article
AN - SCOPUS:84893908937
SN - 2044-4753
VL - 4
SP - 832
EP - 837
JO - Catalysis Science and Technology
JF - Catalysis Science and Technology
IS - 3
ER -