Apparatus for contacting a gas and a liquid

Gas and liquid contact apparatus – Contact devices – Wet baffle

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B01F 304

Patent

active

051025833

ABSTRACT:
In an apparatus for contacting gas and liquid comprising a substantially vertical column containing a number of substantially horizontal contacting trays in which each tray is provided with passages for gas and liquid, which apparatus further comprises a controller indicating the density of the mixture of gas and liquid at at least one contacting tray which controller communicates with means to control the flow of liquid from a lower contacting tray ("control tray"), upwards-flowing gas from the lowermost contacting tray and downwards-flowing liquid from an upper contacting tray are contacted, the improvement comprising that the density of the mixture of upwards-flowing gas and downwards-flowing liquid at least one contacting tray is monitored and said density is maintained at a desired level by controlling the flow of liquid from the control tray.

REFERENCES:
patent: 2746846 (1956-05-01), Grunewald et al.
patent: 3364988 (1968-01-01), Hartmann
patent: 3768234 (1973-10-01), Hardison
patent: 3992492 (1976-11-01), Vikholm
patent: 4036918 (1977-07-01), Morgan et al.
patent: 4247368 (1981-01-01), Bannon et al.
Perry's Chemical Engineers' Handbook, 6th Edition, McGraw-Hill, 1984, pp. 18-3 to 18-6; 6-57 to 6-62.

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