| 摘要 |
Vapor and liquid passing downward through a vessel are brought into contact within a plurality of distributor assemblies (1) arranged across a horizontal distribution tray (14) located within the vessel. The distributor assemblies have fluid flow paths with different resistances to fluid flow, as by having vapor inlets (4, 5) of at least two different sizes, with the differently sized inlets being located on different assemblies or on different upflow channels (15, 16) of the same assembly. This provides different vapor flow rates and liquid flow rates in different upflow channels. The invention improves the uniformity of liquid distribution over the cross section of the vessel despite elevational differences in liquid levels on the distribution tray or changes in the vapor and or liquid flow rates through the reactor.
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