| 摘要 |
A reactor for the upgrade of heavy oil feedstock, i.e., in which a multi-phase mixture, including gas, a slurry catalyst, and volatile liquid, is to be conducted. The reactor includes a reaction chamber having a substantially unencumbered center portion through which the multi-phase mixture is conducted upwardly. In one embodiment, the downcomer includes a transport section having an interior comprised of inner and outer regions separated horizontally by a vertical barrier, and a baffle structure disposed on an inner surface of the barrier. In another embodiment, the reactor comprises a downcomer having an upper degassing section which includes a frusto-conical upper surface. The multi-phase mixture is caused to flow along the surface in a downward helical path, such that heavier components are centrifugally urged outwardly, and lighter components, e.g., gas, migrate inwardly. In one embodiment, the reactor comprises a distributor device disposed within for distributing the multi-phase mixture therein. The distributor device includes a first pipe adapted for conducting a gas phase, and including first discharge ports, a second pipe adapted for conducting a slurry or a liquid phase, and including second discharge ports, and a plurality of nozzles.
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