Hydroprocessing catalyst and use thereof

摘要: The invention pertains to a hydroprocessing catalyst comprising 7-20 wt.% of Group VIB hydrogenation metal component, calculated as trioxide, 0.5-6 non-noble VIII oxide, and 0.1-2 an alkali on carrier, wherein the carrier comprises at least 3.5 silica, catalyst, having surface area 150m2/g, total pore volume 0.55 ml/g, size distribution which is such that 30-80% present in pores with diameter 100-200 A, 5% above 1000 A. Preferably, has less than 25% 100 also use this heavy hydrocarbon feedstocks, e.g., ebullated bed process, particularly feedstock 50 boils 538°C (1,000°F) 2 sulphur 5 Conradson carbon. according gives good contaminant removal sludge formation prior art catalysts.