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Ethene Oxychlorination over CuCl2/γ-Al2O3 Catalyst in Micro- and Millistructured Reactors.
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SYSNO ASEP 0498889 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Ethene Oxychlorination over CuCl2/γ-Al2O3 Catalyst in Micro- and Millistructured Reactors. Tvůrce(i) Vajglová, Zuzana (UCHP-M) RID, ORCID, SAI
Kumar, N. (FI)
Eränen, K. (FI)
Peurla, M. (FI)
Murzin, D.Yu. (FI)
Salmi, T. (FI)Zdroj.dok. Journal of Catalysis. - : Elsevier - ISSN 0021-9517
Roč. 364, AUG 2018 (2018), s. 334-344Poč.str. 11 s. Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova oxychlorination ; microreactor ; kinetics Vědní obor RIV CI - Průmyslová chemie a chemické inženýrství Obor OECD Chemical process engineering Institucionální podpora UCHP-M - RVO:67985858 UT WOS 000440391600032 EID SCOPUS 85048726195 DOI 10.1016/j.jcat.2018.05.019 Anotace 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. Pracoviště Ústav chemických procesů Kontakt Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Rok sběru 2019
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