Hidro conversión de heptano sobre una bentonita colombiana y una saponita española pilarizadas con aluminio y activadas con ácido

摘要: Colombian montmorillonite (bentonite) and saponite have been pillared with oxo-hidroxyaluminium solutions, activated acid clorhidric of different concentrations. The solids examined by X-ray diffraction. textural properties, residual cation exchange capacities, contents established. clays exhibit stable thermally spacings, specific surface areas, micropore typical such materials. catalytic properties evaluated over Pt impregnated samples in the heptane hydroconversion reaction. Al-pillared show superior performance. higher activity is attributed to content strength sites associated Si-OH-AI groups produced upon proton attack tetrahedral Si-O-AI bonds. Such strong are absent montmorillonites.