A GAS/LIQUID DISTRIBUTOR BETWEEN TWO EXCHANGE PORTIONS OF A COUNTER-CURRENT COLUMN
In the gas/liquid distributor (4) of a countercurrent column (1), the outlets (13) of the tubes (8) for the liquid are advanced to close to the column section (2) situated below; to guide and distribute the gas flowing upwards, at least (illegible) chimneys (7) are provided per m of surface of the d...
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Zusammenfassung: | In the gas/liquid distributor (4) of a countercurrent column (1), the outlets (13) of the tubes (8) for the liquid are advanced to close to the column section (2) situated below; to guide and distribute the gas flowing upwards, at least (illegible) chimneys (7) are provided per m of surface of the distributor tray (5). The total flow cross-section of the chimneys (7) is at least 10% of the surface area of the tray (5) occupying the total column cross-section. The flow cross-sections of the chimneys (7) are further narrowed as against their relatively narrow entry cross-sections.
By means of this measure, on the one hand a uniform gas distribution is achieved as a consequence of a static gas pressure, and on the other hand gas and liquid are substantially conducted separately on flowing through the intermediate space between the sections (2a and 2b), a relatively high gas velocity being attained. This substantial separation of their flow paths improves, particularly in countercurrent columns having a flow parameter phi > 0.1, the stability of gas flow and liquid flow and thus also the efficiency of the countercurrent column. |
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