Исследование Cr-Zr оксидных катализаторов для дегидрирования пропана

Abstract

Two series of cromium-zirconium mixed oxide catalysts with different Cr/Zr molar ratio were prepared by co-precipitation method. Porous structure of catalysts was investigated by low-temperature N[2] adsorption, phase composition and chromium state of catalysts were characterized by X-ray diffraction (XRD) and temperature-programmed reduction with H[2] (TPR-H[2]). The mixed catalysts were studied in non-oxidative dehydrogenation of propane at 550°С. The catalysts obtained without ageing were shown higher activity in propane dehydrogenation due to possible higher content of reducible Cr5{+/6+}.