| Popis: |
A series of SAPO, GaPSO, MgAPO and, GaPO's were prepared by hydrothermal. synthesis under autogeneous pressure. These catalysts were characterized by XRD, N-2 adsorption-desorption isotherms at 77 K, TG-DTA, NH3-DRIFT, XPS, and MAS NMR. They were tested under learn-burn conditions in the reduction of NO and NO2 Using isobutane and ethane as reductants. Under the investigated conditions, the reaction occurred selectively mainly to alkenes, namely, isobutene and ethene. The characterization of the tested catalysts indicated no changes for SAPO's and MgAPO, but only for gallium containing phosphates. However, both catalysts were stable in time. |
