Factors Analysis for Mechanical Strength in Pelleting Process of Fe-Based High Temperature Shift Catalyst

Abstract The pelleting process and the factors influencing mechanical strength for Fe-based catalyst have been investigated. The horizontal crushing strength data is used in the text, their mean value and their corresponding Weibull modulus are taken as parameters for analysis. It is found that the processing precision of the pelleting machine, the pretreatment of the powder and the pelleting conditions all have strong effect on the final strength of pellets. The experimental result shows that a potentiality of increasing in overall properties exists, which means a better quality catalyst could be expected.