Kinetic modeling of C3H6 inhibition on NO Oxidation over Pt Catalyst
Journal article, 2016

Exhaust after treatment for lean burn and diesel engine is a complex catalytic system that consists of a number of catalytic units. Pt/Al2O3is often used as a model Diesel Oxidation Catalyst (DOC) that plays an important role to facilitate oxidation of NO to NO2. In the present study, we proposed a detailed kinetic model of NO oxidation as well as low temperature C3H6 inhibition to simulate temperatureprogrammed reaction (TPR) data for NO oxidation over Pt/Al2O3. A steady-state microkinetic model based on Langmuir-Hinshelwood mechanism for NO oxidation was proposed. In addition, low temperature C3H6inhibition was proposed as a result of site blocking as well as surface nitrite consumption. The model can explain the experimental data well over the studied temperature range.

Microkinetic modeling

NO oxidation

C3H6 inhibition

Doc catalyst


Muhammad Mufti Azis

Gadjah Mada University

Chalmers, Chemistry and Chemical Engineering, Chemical Technology

Derek Creaser

Chalmers, Chemistry and Chemical Engineering, Chemical Technology

Bulletin of Chemical Reaction Engineering and Catalysis

1978-2993 (ISSN)

Vol. 11 1 27-33

Subject Categories

Chemical Engineering



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