| 摘要 |
A fluidisable bed of catalyst particles is supported on a static bed consisting of 3 to 15 layers of spherical particles which are 10 to 15 times larger than the catalyst particles, a hydrocarbon liquid and if desired a gas being passed up through the stationary support particles to the catalyst bed for conversion. The gas may be introduced above the support bed, the liquid and gas being recycled. The catalyst comprises one or more metals having hydrogenating activity selected from Groups VIa and VIII of the Periodic Table, supported as an oxygen-containing refractory base, e.g. alumina, silica-alumina or an alumino-silicate. The spherical support particles may be of soda-glass. |
