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Ethene oxychlorination over CuCl2/γ-Al2O3 catalyst in micro- and millistructured reactors.
- Source :
-
Journal of Catalysis . Aug2018, Vol. 364, p334-344. 11p. - Publication Year :
- 2018
-
Abstract
- Oxychlorination of ethene was performed over CuCl 2 /γ-Al 2 O 3 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 CO 2 , 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. [ABSTRACT FROM AUTHOR]
- Subjects :
- *CATALYSIS
*ETHYLENE
*ALUMINUM oxide
*CATALYSTS
*MICROREACTORS
Subjects
Details
- Language :
- English
- ISSN :
- 00219517
- Volume :
- 364
- Database :
- Academic Search Index
- Journal :
- Journal of Catalysis
- Publication Type :
- Academic Journal
- Accession number :
- 130721500
- Full Text :
- https://doi.org/10.1016/j.jcat.2018.05.019