Zinc-Containing BEA Zeolites for the Propane Dehydrogenation Reaction: Influence of Adding Yttrium on the Catalytic Properties.

Research results about the structure, acid-base, redox, and adsorption characteristics of zinc(yttrium)-containing dealuminated BEA zeolites (Si/Al=1000), Zn(Y)SiBEA and their catalytic properties in the propane dehydrogenation with CO (CO-PDH) are presented. The catalysts were prepared through a two-step procedure involving complete dealumination of the BEA zeolite followed by the introduction of Zn and Y cations into vacant T-atom sites, by impregnation. The samples obtained were characterized using XRD, XPS, Si DP MAS NMR, low-temperature N ad/desorption, TPR-H, CH/CH (CO, NH)-TPD, and FTIR-Py techniques.