Application of transient methods in three-phase catalysis: Hydrogenation of a dione in a catalytic plate column

Esa Toukoniitty, Johan Wärnå, Tapio Salmi, Päivi Mäki-Arvela, Dmitry Yu. Murzin*

*Korresponderande författare för detta arbete

Forskningsoutput: TidskriftsbidragKonferensartikelVetenskapligPeer review

6 Citeringar (Scopus)

Sammanfattning

The continuous enantioselective hydrogenation of 1-phenyl-1,2-propanedione was investigated in fixed-bed reactor at 25°C and 5 bar H2 over a knitted Pt silica fibre catalyst modified with (-)-cinchonidine. Transient data were quantitatively modelled based on the reaction mechanism which assumes two parallel and tilted adsorption modes for the modifier and two distinct adsorption modes for 1- and 2-carbonyls, each of them requiring different number of surface sites. A dynamic axial dispersion model described the tube reactor with the Peclet number estimated from the separate impulse experiments carried out with an inert tracer. The modelling revealed that inclusion of sorption dynamics of components is of critical importance for the adequate description of transient data.

OriginalspråkEngelska
Sidor (från-till)383-389
Antal sidor7
TidskriftCatalysis Today
Volym79-80
DOI
StatusPublicerad - 30 apr 2003
MoE-publikationstypA4 Artikel i en konferenspublikation
EvenemangCatalysis in Multiphase Reactors - Naples, Italien
Varaktighet: 29 maj 200029 maj 2000

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