Patent ID: 9446389
Filing Date: 2016-09-20
CPC Classification: B01J,C10G,Y02P

Claim Text:
1. A method for forming a catalyst, comprising: heating a Ge-ZSM-5 zeolite powder at a temperature of 400 to 600° C. to form a heat-treated zeolite powder; ion-exchanging the heat-treated zeolite powder with an alkali metal and impregnating the heat-treated zeolite powder with noble metal to form an ion-exchanged, impregnated zeolite powder; heating the ion-exchanged, impregnated zeolite powder to a temperature of 250 to 350° C. to form a second heat-treated zeolite powder; mixing the second heat-treated zeolite powder with a solid silica binder and a colloidal silica binder to form a mixture, wherein the solid silica has a purity of less than or equal to 66 wt % of silica oxide based on the total weight of the solid silica, the mixture is free of an extrusion aide, and the colloidal silica has a particle size of less than 20 nm as measured along a major axis; forming the mixture into a shaped body; and heating the shaped body to 100 to 350° C. to result in the catalyst.