TY - JOUR
T1 - Ethene oxychlorination over CuCl2/γ-Al2O3 catalyst in micro- and millistructured reactors
AU - Vajglová, Zuzana
AU - Kumar, Narendra
AU - Eränen, Kari
AU - Peurla, Markus
AU - Murzin, Dmitry
AU - Salmi, Tapio
N1 - tk.
PY - 2018
Y1 - 2018
N2 - Oxychlorination of ethene was performed over CuCl2/γ-Al2O3 catalyst in a microreactor (460 µm in diameter) and for comparison in a millireactor (1 cm in diameter). A copper-modified catalyst was prepared by a conventional evaporation–impregnation method without any promotors (e.g., K, Na, La) using copper (II) chloride as a precursor. The catalyst was characterized by nitrogen physisorption, Fourier transform infrared spectroscopy using pyridine, temperature-programmed desorption of CO2, scanning electron microscopy, energy-dispersive X-ray microanalysis, and transmission electron microscopy. Different reactor types led to notable differences in catalytic performance at the same partial pressures in terms of both activity and selectivity. A higher reaction rate was achieved in the microreactor, which was 4.5 times faster. The activity decline and different selectivity to the desired product are explained by a change in the oxychlorination mechanism due to a different ratio of reagents in the mixture during the reaction.
AB - Oxychlorination of ethene was performed over CuCl2/γ-Al2O3 catalyst in a microreactor (460 µm in diameter) and for comparison in a millireactor (1 cm in diameter). A copper-modified catalyst was prepared by a conventional evaporation–impregnation method without any promotors (e.g., K, Na, La) using copper (II) chloride as a precursor. The catalyst was characterized by nitrogen physisorption, Fourier transform infrared spectroscopy using pyridine, temperature-programmed desorption of CO2, scanning electron microscopy, energy-dispersive X-ray microanalysis, and transmission electron microscopy. Different reactor types led to notable differences in catalytic performance at the same partial pressures in terms of both activity and selectivity. A higher reaction rate was achieved in the microreactor, which was 4.5 times faster. The activity decline and different selectivity to the desired product are explained by a change in the oxychlorination mechanism due to a different ratio of reagents in the mixture during the reaction.
KW - Chemical Engineering
KW - Chemical Engineering
KW - Chemical Engineering
U2 - 10.1016/j.jcat.2018.05.019
DO - 10.1016/j.jcat.2018.05.019
M3 - Artikel
SN - 0021-9517
VL - 364
SP - 334
EP - 344
JO - Journal of Catalysis
JF - Journal of Catalysis
ER -