First, second and nth order autocatalytic kinetics in continuous and discontinuous reactors

A1 Journal article (refereed)


Internal Authors/Editors


Publication Details

List of Authors: Vincenzo Russo, Tapio Salmi, Frank Mammitzsch, Olatunde Jogunola, Rüdiger Lange, Johan Wärnå, Jyri-Pekka Mikkola
Publication year: 2017
Journal: Chemical Engineering Science
Journal acronym: Chem. Eng. Sci.
Volume number: 172
Start page: 453
End page: 462
eISSN: 1873-4405


Abstract

Autocatalytic phenomena in chemical kinetics originate from various
reasons, such as acid-catalytic effects of reaction products or change
of the physical properties of the reaction mixture. The impact of
autocatalytic kinetics on the chemical reactor design is crucially
important leading to deviations from standard design rules. The impact
of autocatalytic effects on first, second and nth order kinetics was
investigated for batch, plug flow, backmixed, axial dispersion and
recycled plug flow reactors was analyzed by classical approach and
numerical simulations. Efficient numerical strategies were developed for
the different reactor models. The results showed how an optimal degree
of backmixing (Péclet number) and optimal recycle ratio can be
determined for tubular reactors and how the reactor volume can be
minimized for specific cases. Generic examples as well as hydrolysis of
alkyl formate were considered as case studies.


Keywords

Autocatalysis, Axial dispersion, Batch reactor, Chemical Engineering, Optimization, Plug flow, Recycle

Last updated on 2019-10-12 at 03:24