CO oxidation over Pt-modified fly ash zeolite X

In this study, an attempt to find a solution for environmental problems as the utilization of the waste of fly ash together with reducing of CO emissions is presented. Zeolite X from fly ash is obtained and used as a catalyst support and this leads to minimization of the catalyst cost. Reference sample synthesized from pure chemicals is modified with the same amount of iron that is content in the fly ash zeolite in order to be compared with it. Platinum is loaded on both samples and the activity for CO oxidation is investigated. The temperature difference for 100% CO conversion (T 100 ) on the Pt-loaded fly ash zeolite (FANaX-0.5Pt) and those of Pt modified NaX (NaX0.5 Pt) zeolite is only 20 °C (185 and 165 °C) and there is no difference in this parameter between FANaX-0.5Pt and NaX4.5Fe0.5Pt samples. These results are promising for finding of cheaper alternative of X zeolite.