Isomerization of n-heptane on catalysts Pt/MOR/Al2O3

Abstract

Catalysts Pt/MOR/Al2O3 mordenite zeolite with a content of 10 to 50 wt.% are cooked. Solutions H2PtCl6 and [Pt(NH3)4]Cl2 was used comas the Pt precursor. Localization of platinum in MOR/Al2O3 mixtures support depends on the nature of the metal precursor, what is shown by transmission electron microscopy. The catalysts were tested in an isomerization reaction of n-heptane. It is shown that the best catalysts provide yield of desired products – di- and three methylsubstituted isomers of heptane at 21 wt.%, at a temperature 280 °C and at stable output of catalysate С5+ 79–82 wt.%. Catalysts may be used to improve the environmental performance of gasoline by their application in the isomerization of 70–105 °C naphtha fraction.