Determination Of The Effects Of Catalyst Components On The Total Oxidation Of Methane In Zeolite Supported Catalysts Prepared By The Impregnation Method

Abstract

The aim of this study is the determination of effects of catalysts components on the methane total oxidation activities of zeolite supported catalysts. For this reason, SAPO34 and Zeolite 13X were used as zeolite support. PdO, CeO2, ZrO2 catalysts components were used as active component and as promoter component. Catalysts were prepared by using the impregnation method. Characteristic properties were determined by using X-Ray Diffraction, N2 adsorption/desorption and Scanning Electron Microscopy analysis. According the characteristic results, to obtain high surface area SAPO34 should be chosen as support. According to the total methane oxidation catalytic activity studies SAPO34 supported catalysts were more active than Zeolite 13X supported catalysts. Through catalytic activity studies, the type of promoter and support component most compatible with PdO was determined. It was found that PdO-ZrO2/SAPO34 catalyst is determined as the most active catalyst. Based on the results, it can be said that the internal interaction between PdO and ZrO2 is better than the internal interaction between PdO - CeO2, and that the PdO -CeO2-ZrO2 pair is more compatible for methane oxidation in the support structure.

Keywords

• Methane
• Oxidation
• Zeolite
• Preparation

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