Kinetic analysis of O2- and NO2-based oxidation of synthetic soot
Artikel i vetenskaplig tidskrift, 2013

This study demonstrates the application of two different methods to evaluate the kinetics of O-2- and NO2-based oxidation of carbonaceous matter. The influence of reactor setup and experiment execution on the accuracy and interpretation of the kinetic parameters is also discussed. The fundamental difference between the two methods lies in how rate changes during the progress of oxidation are interpreted: by changes in the fraction of atoms available for reaction (traditional approach) or by changes in the activation energy (unconventional approach). Using the traditional approach, it was found that two parallel reactions with a first-order reaction model and a third-order Avrami-Erofeyev model could accurately reproduce the O-2-based oxidation curves. The same model (with a different set of parameter values) could also describe the NO2-based kinetics. The unconventional method also provided an accurate representation of the data and can thus function as a complementary evaluation method.

Författare

Carolin Wang-Hansen

Chalmers, Kemi- och bioteknik, Kemisk reaktionsteknik

Kompetenscentrum katalys (KCK)

Soheil Soltani

Kompetenscentrum katalys (KCK)

Chalmers, Kemi- och bioteknik, Kemisk reaktionsteknik

Bengt Andersson

Chalmers, Kemi- och bioteknik, Kemisk reaktionsteknik

Kompetenscentrum katalys (KCK)

Journal of Physical Chemistry C

1932-7447 (ISSN) 1932-7455 (eISSN)

Vol. 117 1 522-531

Drivkrafter

Hållbar utveckling

Styrkeområden

Nanovetenskap och nanoteknik

Transport

Energi

Materialvetenskap

Ämneskategorier

Kemiska processer

DOI

10.1021/jp307789r