| 摘要 |
Hydrogen treatment of petroleum oils takes place with the help of catalysts consisting of groundmasses with a well-defined pore-structure and containing mono-disperse small particles of oxides and their sulphides of cobalt, molybdenum, nickel and/or tungsten. Groundmasses with a bimodal, sharp, pore-size distribution are produced by the spray drying of mono-disperse brines, for ex. of silicone-dioxide. Shaped particles of groundmass are formed by extruding a mass of spray-dried particles. Mono-disperse particles of metal sulphides are formed via the processing of micro-emulsions of metal salts in a water-soluble hydrocarbon with hydrogen sulphide. The groundmass is impregnated with mono-disperse particles of metal sulphides, where after hydrocarbon and the emulsifier is removed via washing or burning. |
