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PRESSURE EFFECT ON THE TRANSITION FROM KINETIC TO DIFFUSION CONTROL DURING CATALYTIC IGNITION

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Author(s): O.M. Staicu | V. Munteanu | D. Oancea

Journal: Analele Universitatii Bucuresti : Chimie
ISSN 1220-871X

Volume: XVII;
Issue: I;
Start page: 25;
Date: 2008;
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ABSTRACT
The pressure effect on the kinetics of the catalytic ignition of stagnant stoichiometric propane/air, n-butane air and i-butane/air mixtures during the transient, early stage of ignition was investigated using a thin platinum wire heated following a quasi-rectangular profile and operated in an isothermal regime. The overall reaction order was measured and the found values (0.3 – 0.4) were discussed and explained on the basis of a simple kinetic equation.

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