Platinum-tin uniformly dispersed hydro-carbon conversion catalyst and process

Abstract

Abstract A CATALYSTIC COMPOSITE COMPRISING A COMBINATION OF CATALYTICALLY EFFECTIVE AMOUNTS OF A PLATINUM GROUP COMPONENT, A TIN COMPONENT AND A HALOGEN COMPONENT WITH A POROUS CARRIER MATERIAL IS DISCLOSED. THE PLATINUM GROUP, TIN AND HALOGEN COMPONENTS ARE PRESENT IN THE COMPOSITE IN AMOUNTS, CALCULATED ONAN ELEMENTAL BASIS, OF ABOUT 0.01 TO ABOUT 2 WT. PERCENT PLANTINUM GROUP METAL, ABOUT 0.01 TO ABOUT 5 WT. PERCENT TIN, AND ABOUT 0.1 TO ABOUT 3.5 WT. PERCENT HALOGEN. MOREOVER, THE TIN COMPONENT IS UNIFORMLY DISPERSED THROUGHOUT THE POROUS CARRIER MATERIAL IN A PARTICULE SIZE HAVING A MAXIMUM DEMENSION LESS THAN 100* A., AND SUBSTANTIALLY ALL OF THE PLATINUM GROUP COMPONENT IS PRESENT AS THE ELEMENTAL METAL AND SUBSTANTIALLY ALL OF THE TIN IS PRESENT IN AN OXIDATION STATE ABOVE THAT OF THE ELEMENTAL METAL. THE PRINCIPAL UTILITY OF THE SUBJECT COMPOSITE IS IN THE CONVERSION OF HYDROCARBONS, PARTICULARLY IN THE REFORMING OF A GASOLINE FRACTION. A SPECIFIC EXAMPLE OF THE CATALYST DISCLOSED IS A COMBINATION OF A PLATINUM GROUP METAL, TIN OXIDE AND HALOGEN WITH AN ALUMINA CARRIER MATERIAL WHEREIN THE TIN OXIDE COMPONENT IS UNIFORMLY DISPERSED THROUGHOUT THE ALUMINA CARRIER MATERIAL IN A RELATIVELY SMALL PARTICLE SIZE AND WHEREIN THE COMPOSITE CONTAINS ON AN ELEMENTAL BASIS 0.01 TO 2 WT. PERCENT PLATINUM METAL, 0.01 TO 5 WT. PERCENT TIN AND ABOUT 0.1 TO 3.5 WT. PERCENT HALOGEN.

Inventors

• 👤 R Rausch

Bibliographic Details