A METHOD FOR MAKING A CATALYST PRECURSOR WITH AN ENHANCED HYDROTHERMAL STABILITY

摘要

The present invention relates to a method for making a catalyst precursor with an enhanced hydrothermal stability comprising: preparing a stabilized catalyst support by a method for making a catalyst precursor with an enhanced hydrothermal stability comprising: preparing a stabilized catalyst support by a method comprising contacting a boehmite material with at least one structural stabilizer or a compound thereof, characterized in that the boehmite material comprises two or more crystalline boehmites having different average crystallite sizes differing by at least 1 nm; and subjecting the boehmite material to at least one heat treatment employing a temperature of 450 °C or higher, either before or after the contacting step; and applying a catalytic metal or a compound thereof to said stabilized catalyst support to from a catalyst precursor, wherein the catalytic metal comprises a Group 8 metal, Group 9 metal, Group 10 metal, or combinations thereof.