Characteristics of Fe-Ce sorbents and its ash-support for desulphurization of hot coal gas

Using different size range of flying ash samples from gangue thermal power plant of Liaoning Fuxin as carrier, Fe-Ce oxide as active component, Kaolin as binder, through mechanical mixing, forming, drying and high temperature calcination, columnar samples are prepared. In the condition of 120°C, drying for 4h,then calcining in 700°C for 8h, the iron-cerium-based sorbents for hot coal gas desulphurization were prepared using coal ash as the support and the sorbents and coal ash are characterized by means of numerous analytical methods such as composition analysis, XRD and SEM. The results clearly indicate that the sorbents prepared using coal ash as the support demonstrate high reactivity and high resistance to attrition during sulfidation during the temperature range of 400 °C to 600°C.