Kinetics of ceria-catalysed ethene oxychlorination

A1 Originalartikel i en vetenskaplig tidskrift (referentgranskad)


Interna författare/redaktörer


Publikationens författare: Zuzana Vajglová, Remi Hemery, Narendra Kumar, Kari Eränen, Markus Peurla, Janne Peltonen, Johan Wärnå, Javier Pérez-Ramírez, Dmitry Yu. Murzin, Tapio Salmi
Publiceringsår: 2019
Tidskrift: Journal of Catalysis
Tidskriftsakronym: J. Catal.
Volym: 372
Artikelns första sida, sidnummer: 287
Artikelns sista sida, sidnummer: 298
eISSN: 1090-2694


Abstrakt

Oxychlorination of ethene was conducted in a microreactor (150–375 °C) over a thin layer of CeO2 prepared in the current work with the specific surface area of 80 m2/g and compared with the same reaction in millireactors (250–500 °C).

The kinetic analysis revealed influence of the ethene concentration on the apparent activation energy which was different in micro- and millireactors. The previously developed reaction network was completed by including two parallel reactions for formation of ethylchloride and vinylchloride and two consecutive reactions accounting for formation of dichloroethane and vinylchloride via ethyl chloride. The reaction orders with respect to HCl and O2 in the microreactor were comparable with the literature data for millireactors. Kinetic modeling was successfully carried for all reactants by using a steady state model of a packed bed reactor.


Nyckelord

Chemical Engineering

Senast uppdaterad 2020-14-07 vid 04:33