| THE INFLUENCE OF CATALYST PROPERTIES ON CO OXIDATION REACTION - A THEORETICAL APROACH |
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THE INFLUENCE OF CATALYST PROPERTIES ON CO OXIDATION REACTION - A THEORETICAL APROACH
Elena Carcadea*, Mihai Varlam, Adriana Marinoiu, Ioan Stefănescu, Mircea Răceanu, Laurențiu Pătularu, Daniela Ebrașu, Vasile Tanislav, Cătălin Capriș
National Research and Development Institute for Cryogenics and Isotopic Technologies - ICIT Rm. Valcea,
Uzinei Street no. 4, P.O. Box Râureni 7, 240050, Râmnicu Vâlcea, Romania
ABSTRACT
The aim of this paper is to investigate the effect of catalyst particle diameter and of pressure on CO oxidation reactions. The numerical investigation was done for three different pressures (1 bar, 0.7 bar, 0.4 bar) and three catalyst particle diameters (0.1mm, 0,15mm, 0,2mm) at low temperature (300-313K). In order to achieve less than 10 ppm CO levels needed for PEM fuel cell anode flux, CO conversions of 90% or more are needed in the reactor. Our study concluded that in the case of 0.1 mm catalyst particle diameter the conversion of CO is over 99% regardless of the pressure and temperature used. In the other cases (0.15mm, 0.2mm) it was found that a temperature above 310K is required in order to have a CO conversion of 90% or more, regardless of the pressure used.
Keywords: carbon monoxide oxidation, permeability, parametrical study *Corresponding author: Elena Carcadea, phone: 0250.732.744; fax: 0250.732.746; E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it |