TY - JOUR
T1 - Microkinetic analysis of ethanol to 1,3-butadiene reactions over MgO-SiO2 catalysts based on characterization of experimental fluctuations
AU - Da Ros, Simoni
AU - Jones, Matthew
AU - Mattia, Davide
AU - Schwaab, Marcio
AU - Barbosa-Coutinho, Elisa
AU - Rabel-Neto, Raimundo
AU - Noronha, Fabio
AU - Pinto, Jose
PY - 2017/1/15
Y1 - 2017/1/15
N2 - Microkinetic analysis of ethanol to 1,3-butadiene reactions over MgO-SiO2 catalysts was performed based on the detailed characterization of experimental fluctuations, taking into account the influence of the reaction temperature and catalyst properties on ethanol conversion and product selectivities. The obtained results show that both reaction temperature and catalysts properties affected experimental fluctuations significantly. The local microkinetic information contained in the covariance matrix of experimental fluctuations indicated the change of the rate-limiting step as reaction temperature increased: from 300 to 400 ºC, the rate-limiting step was identified as the acetaldehyde condensation, while at 450 ºC, ethanol dehydrogenation step limits the 1,3-butadiene production.
AB - Microkinetic analysis of ethanol to 1,3-butadiene reactions over MgO-SiO2 catalysts was performed based on the detailed characterization of experimental fluctuations, taking into account the influence of the reaction temperature and catalyst properties on ethanol conversion and product selectivities. The obtained results show that both reaction temperature and catalysts properties affected experimental fluctuations significantly. The local microkinetic information contained in the covariance matrix of experimental fluctuations indicated the change of the rate-limiting step as reaction temperature increased: from 300 to 400 ºC, the rate-limiting step was identified as the acetaldehyde condensation, while at 450 ºC, ethanol dehydrogenation step limits the 1,3-butadiene production.
KW - Ethanol
KW - 1,3-Butadiene
KW - Kinetics
KW - Rate-limiting step
KW - Experimental error
KW - Heterogeneous catalysis
U2 - 10.1016/j.cej.2016.09.135
DO - 10.1016/j.cej.2016.09.135
M3 - Article
SN - 1385-8947
VL - 308
SP - 988
EP - 1000
JO - Chemical Engineering Journal
JF - Chemical Engineering Journal
ER -