| 摘要 |
<p>A composition comprising a coprecipitated magnesia-lanthana-alumina (MgO-La2O3-Al2O3) wherein the MgO component is present as microcrystalline phase, having a BET (N2) surface area of at least 130 m<2>/g, preferably part of which contains a catalytic oxidation and/or reducing promoter metal such as ceria, vanadia and/or titania, is combined with an FCC catalyst which is used to catalytically crack a hydrocarbon feedstock that contains metal and/or sulfur. <IMAGE></p> |
