TY - JOUR
T1 - Glucose transformations over a mechanical mixture of ZnO and Ru/C catalysts
T2 - Product distribution, thermodynamics and kinetics
AU - Aho, Atte
AU - Engblom, Simon
AU - Eränen, Kari
AU - Russo, Vincenzo
AU - Mäki-Arvela, Päivi
AU - Kumar, Narendra
AU - Wärnå, Johan
AU - Salmi, Tapio
AU - Murzin, Dmitry Yu
PY - 2021/2/1
Y1 - 2021/2/1
N2 - Transformations of glucose to 1,2-propylene glycol were studied over a mechanical mixture of ZnO and Ru/C catalysts in the presence of hydrogen. Different reaction conditions were evaluated by changing the reaction temperature and hydrogen pressure. In addition to the cascade mode of operation, also separate steps in the overall reaction network, such as hydrogenation of pyruvaldehyde and hydroxyacetone to 1,2-propylene glycol were investigated. Fructose as a starting material was also studied resulting in a propylene glycol yield of 37.5%. The optimal temperature for glucose transformation to propylene glycol was found to be 165 °C. The influence of temperature on the catalytic behavior was more prominent than the effect of hydrogen pressure. Thermodynamic analysis of glucose transformation to 1,2-propylene glycol was performed and a plausible kinetic model reflecting a complex reaction network was developed being able to describe the data in a reliable way.
AB - Transformations of glucose to 1,2-propylene glycol were studied over a mechanical mixture of ZnO and Ru/C catalysts in the presence of hydrogen. Different reaction conditions were evaluated by changing the reaction temperature and hydrogen pressure. In addition to the cascade mode of operation, also separate steps in the overall reaction network, such as hydrogenation of pyruvaldehyde and hydroxyacetone to 1,2-propylene glycol were investigated. Fructose as a starting material was also studied resulting in a propylene glycol yield of 37.5%. The optimal temperature for glucose transformation to propylene glycol was found to be 165 °C. The influence of temperature on the catalytic behavior was more prominent than the effect of hydrogen pressure. Thermodynamic analysis of glucose transformation to 1,2-propylene glycol was performed and a plausible kinetic model reflecting a complex reaction network was developed being able to describe the data in a reliable way.
KW - 1,2-Propylene glycol
KW - Glucose
KW - Heterogeneous catalysts
KW - Hydrogenolysis
KW - Kinetic modelling
KW - Optimization of reaction conditions
KW - Ru/C
KW - Thermodynamic analysis
KW - ZnO
KW - glucose
UR - http://www.scopus.com/inward/record.url?scp=85090841276&partnerID=8YFLogxK
U2 - 10.1016/j.cej.2020.126945
DO - 10.1016/j.cej.2020.126945
M3 - Article
AN - SCOPUS:85090841276
SN - 1385-8947
VL - 405
JO - Chemical Engineering Journal
JF - Chemical Engineering Journal
M1 - 126945
ER -