fischer tropsch synthesis catalysts with high kobaltanteil and with high kobaltoberflu00e4che

摘要

A particulate catalyst is described comprising an intimate mixture of cobalt and aluminium compounds having cobalt and aluminium at an atomic ratio in the range 10:1 to 2:1 (Co:AI), which when reduced at 425SUP DEG /SUPC, has a cobalt surface area as measured by hydrogen chemisorption at 150SUP DEG /SUPC of at least 30 mSUP2/SUP/g of catalyst. The catalyst is prepared by sequential precipitation of cobalt with aluminium ions in the presence of an alkaline precipitation agent. The catalyst may be used for the hydrogenation of unsaturated compounds or the FischerTropsch synthesis of hydrocarbons.