Fischer–Tropsch synthesis over cobalt catalysts supported on mesoporous alumino-silicate

Abstract

Mesoporous alumino-silicate (MPAS) was prepared at ambient temperature by utilizing hexadecylpyridinium chloride as a surfactant, and used as the support of cobalt catalysts for Fischer–Tropsch synthesis in a slurry phase. The results of XRD and N₂ adsorption measurements indicate that cations such as Co²⁺ and Ir⁴⁺ were effectively loaded on the surface of the mesopore walls, retaining mesoporous characteristics. The Co–Ir catalyst supported on MPAS showed excellent thermal stability, higher selectivity for C_10–20 hydrocarbons and lower selectivity for CH₄. These properties are affected by Al incorporated into the silica framework.