Kinetics of the carbon monoxide conversion with steam at elevated pressures

Abstract

The kinetics of the carbon monoxide conversion with steam on a Czechoslovak FeCr catalyst was investigated. The experimental data were obtained on a gradient-free differential reactor with recirculating gaseous phase at temperatures of 633 and 693 K and pressures from the range 0.1-0.9 MPa. The evaluation of experimental data showed that the reaction rate increases with increasing pressure according to a downward convex and that it also increases with increasing content of carbon monoxide in the gas and with decreasing content of carbon dioxide. The reaction kinetics was described by an equation derived from the Langmuir-Hinshelwood concept for the case when the limiting step of the reaction is a surface reaction.